US20140263304A1 - Recyclable compost container - Google Patents
Recyclable compost container Download PDFInfo
- Publication number
- US20140263304A1 US20140263304A1 US13/938,876 US201313938876A US2014263304A1 US 20140263304 A1 US20140263304 A1 US 20140263304A1 US 201313938876 A US201313938876 A US 201313938876A US 2014263304 A1 US2014263304 A1 US 2014263304A1
- Authority
- US
- United States
- Prior art keywords
- framing element
- hollow body
- connector
- cardboard
- open end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/14—Linings or internal coatings
- B65D25/16—Loose, or loosely-attached, linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
- B65D3/04—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/16—Snap-on caps or cap-like covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/06—Large containers rigid cylindrical
- B65D88/08—Large containers rigid cylindrical with a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/52—Large containers collapsible, i.e. with walls hinged together or detachably connected
- B65D88/526—Large containers collapsible, i.e. with walls hinged together or detachably connected with detachable side walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/08—Interconnections of wall parts; Sealing means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Definitions
- the present invention generally relates to packaging and more particularly relates to a composite container system which can be disassembled and the components thereof recycled.
- Packaging such as box-shaped containers, are normally made entirely from a single material such as metal, plastic, wood or cardboard. Also known are composite containers made from combinations of either metal and plastic or metal and cardboard. When an impervious or leak-proof container is required for substances such as paint, toxic or harmful chemical products and the like, which may include volatile or other chemically active components, the containers are generally made entirely of a single material such as metal or plastic because these materials enable the containers to be made both leak-proof and structurally rigid.
- the known composite containers typically comprise cardboard tubes closed at either end with metal end framing structures.
- the peripheral edges of these end framing structures are typically joined to the cardboard tube by a crimping or seaming process wherein the edge of the end framing structure is bent around one of the cylinder's extremities, thereby permanently deforming and connecting both the end framing structure and the cylinder's extremity.
- the crimping can also retain a metallised liner which is provided along the interior surface of the cardboard cylinder.
- the inside wall of the tube is provided with an impervious liner in order to render it airtight and watertight.
- the bottom of such a container is generally provided with a metallic closure and the top end is closed with a membrane sealed to the impervious liner.
- the rim of the top end must be outwardly rolled in order to allow the membrane to be sealed to the exposed liner of the rim, as the sealing of the membrane would not be possible with inwardly rolled rims.
- a reusable end cap is snapped over the outwardly rolled rim.
- the liner ply is applied over the cardboard ply using an adhesive, and the combined plies are heated in such a way that they are bonded together thus forming a single thicker ply, which is then rolled into a tube.
- the recycling of the different components of such containers is simply not possible because of the crimped metallic closure, and because the cardboard plies are bonded with polymeric liners using adhesive.
- U.S. Pat. No. 4,856,708 describes an adhesively secured container cover.
- the cover includes a ring fitted over the rolled edge of a container wall.
- the ring is maintained in place with an adhesive, the ring having an annular cavity for receiving the adhesive.
- the closure of the container can not be removed from the sidewall of the container once in place, and thus can not be easily recycled.
- U.S. Pat. No. 4,700,867 describes a sleeved container used to contain juice concentrates and the like.
- the container includes an outer cardboard sleeve and an inner plastic sleeve.
- the inner plastic sleeve is provided with an outturned flange fitted over the upper end of the cardboard sleeve and includes an upper portion which is moulded or formed such as to include a groove into which the tongue of the closure can fit.
- U.S. Pat. No. 4,312,459 describes a paint can rim cover and a lid, the rim cover being used to prevent paint from drying within the groove of the rim of a paint can of well-known construction.
- a typical paint can is formed of a cardboard cylinder having its upper end outwardly rolled and of a metallic rim rolled and crimped around the outwardly rolled end of the cardboard cylinder. The connection between the cardboard cylinder and the metallic rim is made so as to be permanent.
- the plastic rim cover of the invention is destined to cooperate with the metallic rim of the paint can, the rim cover having a lip which cooperates with the bead of the metallic rim.
- U.S. Pat. No. 6,616,110 describes yet another type of device connectable to the metallic rim of a typical paint can.
- a recyclable composite container is provided.
- the recyclable composite container comprises a cardboard hollow body having an open end defining an opening.
- the body is formed by a sidewall having an inwardly rolled rim at the open end.
- the container also comprises a framing element which is removably connectable to the open end of the cardboard hollow body.
- the framing element has a peripheral portion and a hook-shaped connector linked to this peripheral portion.
- the connector is for engaging with the inwardly rolled rim of the cardboard hollow body.
- Such construction thereby allows connection of the framing element to the cardboard hollow body by hooking the connector to the rim of the cardboard hollow body, and disconnection of the framing element from the cardboard hollow body by pulling the framing element so as to disengage the connector from the rim.
- the container according to the invention provides a connection of the framing element and the cardboard hollow body sturdy enough to allow a normal use of the container, for example for containing paint, silicone or food, and for resisting pressure and temperature variations that can occur during transportation or handling of the container.
- the connection is at the same time removable such that by applying sufficient amount of force, the framing element can be dissembled from the cardboard hollow body, in order to recycle the main components of the container.
- the word “linked” means that the connector can be either integral to the peripheral portion of the framing element, or connected to it, either directly or indirectly, via another component.
- Having the container with an inwardly rolled rim provides the advantage of hiding the rolled rim and the connector inside the container, such that the person handling the container during normal use does not have readily access to these connecting elements. Having the rims rolled inwardly also allows providing a more compact and uniform container when viewed from the outside, thus improving its aesthetics, because the connector and the rolled rims are hidden inside the container.
- composite container it is meant the container is made of different parts made of different materials.
- framing element it is meant an element substantially rigid to provide rigidity and structure to the cardboard hollow body.
- peripheral portion it is meant a zone, an area or a section of the framing element located along its periphery.
- removably connected refers to the framing element rather that to a lid, and is intended to mean that when applying a predetermined amount of pulling force on the framing element, the connector can be disengaged from the inwardly rolled rims, allowing the framing element to be disconnected from the cardboard hollow body.
- the connector comprises an axial section ending with a hook extending radially and outwardly
- the rolled rim comprises an axial section and a free end, and when the framing element is connected to the open end, the axial section of the connector is adjacent the axial section of the rolled rim, and the hook interlocks the free end of the rolled rim.
- the connector comprises a flange having an outwardly curved end, the flange extending continuously along said peripheral portion.
- the container comprises a plurality of said of hooked-shaped connector distributed along said peripheral portion.
- the framing element comprises a cover wall integral to the collar, for closing the opening of the cardboard hollow body when the framing element is connected to the open end.
- the peripheral portion of the framing element is a lid flange defining an aperture, for sealingly and removably receiving a lid.
- the recyclable composite container comprises a bag for lining an inner surface of the sidewall of the cardboard hollow body, the bag having an open end clampable between the inwardly rolled rim and the connector.
- FIG. 1 is an exploded view of a container according to a preferred embodiment of the invention.
- FIG. 2 is a top perspective view of a framing element according to a first variant.
- FIG. 3 is a bottom perspective view of the framing element of FIG. 2 .
- FIG. 4 is a top view of the framing element of FIG. 2 .
- FIG. 5 is a close-up of a portion of the cross-sectional view of the framing element of FIG. 4 , taken along line 5 - 5 .
- FIG. 6 is a top perspective view of a framing element according to a second variant.
- FIG. 7 is a bottom perspective view of the framing element of FIG. 6 .
- FIG. 8 is a top view of the framing element of FIG. 6 .
- FIG. 9 is a close-up of a portion of the cross-sectional view of the framing element of FIG. 8 , taken along line 9 - 9 .
- FIG. 10 is a top perspective view of a framing element according to a third variant.
- FIG. 11 is a bottom perspective view of the framing element of FIG. 10 .
- FIG. 12 is a top view of the framing element of FIG. 10 .
- FIG. 13 is a close-up of a portion of the cross-sectional view of the framing element of FIG. 12 , taken along line 13 - 13 .
- FIG. 14 is a top perspective view of preferred variant of a cardboard hollow body.
- FIG. 15 is a cross-sectional view of the cardboard hollow body of FIG. 15 .
- FIG. 16 is an exploded view of a container according to another preferred embodiment of the invention.
- FIG. 17 is a top perspective view of the container of FIG. 16 when assembled.
- FIG. 18 is a top view of the container of FIG. 16 , when assembled, without the lid.
- FIG. 19 is a close-up view of a portion of the container of FIG. 18 , taken along lines 19 - 19 .
- FIG. 20 is a top perspective view of a framing element according to a fourth variant.
- FIG. 21 is a bottom perspective view of the framing element of FIG. 20 .
- FIG. 22 is a top view of the framing element of FIG. 20 .
- FIG. 23 is a cross-sectional view of the framing element of FIG. 22 , taken along line 23 - 23 .
- FIG. 23A is a closed view of a portion of FIG. 23 .
- FIG. 24 is a top view of a cardboard hollow body lined with a bag.
- FIG. 25 is a cross-section view of the cardoboard hollow body of FIG. 24 , taken along lines 25 - 25 .
- FIG. 26 is a top perspective view of a container according to another preferred embodiment of the invention.
- FIG. 27 is a top view of the container of FIG. 26 .
- FIG. 28 is a close-up view of a portion of the container of FIG. 27 , taken along lines 28 - 28 .
- FIG. 29 is a top perspective view of a container according to another preferred embodiment of the invention.
- FIG. 30 is a top view of the container of FIG. 29 .
- FIG. 31 is a close-up view of a portion of the container of FIG. 27 , taken along lines 31 - 31 .
- FIG. 32 is a top perspective view of a container according to another preferred embodiment of the invention.
- FIG. 33 is a top view of the container of FIG. 32 .
- FIG. 34 is a close-up view of a portion of the container of FIG. 27 , taken along lines 34 - 34 .
- a recyclable composite container 10 hereafter referred as container, is shown.
- the container 10 comprises a cardboard hollow body 12 having an open end 14 , defining an opening 16 .
- the body 12 is formed by a sidewall 18 having an inwardly rolled rim 20 at the bottom open end 14 .
- the container also comprises a framing element 22 removably connectable to the open end 14 .
- the framing element 22 has a peripheral portion 24 and a hook-shaped connector 26 linked to the peripheral portion 24 for engaging with the inwardly rolled rim 20 of the cardboard hollow body 12 .
- the connector 26 extends from the peripheral portion 24 .
- the framing element 22 can be connected to the cardboard hollow body 12 by hooking the connector 26 to the inwardly rolled rim 20 of the cardboard hollow body 12 , and disconnected from the cardboard hollow body 12 by pulling the framing element 22 so as to disengage the connector 26 from the rim 20 .
- the framing element 22 is forced into the cylinder 12 until the connectors 26 are past the rolled rim 20 .
- the connector 26 has a tapered surface opposite the rim 30 of the cylinder 12 so as to ease this process.
- FIGS. 14 and 15 show the cardboard hollow body 12 with greater details.
- the cardboard hollow body 12 is shown as cylindrical, it will be appreciated that the shape of the body 12 is not limited to circular cross-sections.
- the cardboard body 12 has at least one rim, and in the present case two inwardly rolled rims 20 , 30 which can have different types of shapes, such as a semi-circular or a semi-oval shape. At least one of the rims 20 , 30 must be sufficiently curved to allow a connector to interlock with the rim, thus forming a flange-like portion, or engaging surface, at angle from the sidewall 18 of the body 12 .
- a cardboard hollow body is typically formed by convoluting or spiralling plies of cardboard or kraft-type paper material.
- the rolled rims 20 , 30 can be formed by forcing the edge of the cylinder 12 inward so as to form an inwardly extending, flange-like portion.
- these rolled rims 20 , 30 extend all around the first and second open ends 14 , 28 .
- the rims 20 , 30 are stable and will generally not unroll or otherwise deform during regular use.
- the container 10 also comprises a second framing element 32 removably connectable to the second open end 28 , corresponding to the top end of the body 12 .
- the second framing element 32 also has a peripheral portion and a hook-shaped connector (not shown in FIG. 1 ). Best shown in FIG. 3 , the second framing element 32 is similar to the first framing element 22 in that it is provided with a peripheral portion 24 and a connector 34 extending from that portion 24 to engage with the rolled rim 30 .
- the cardboard cylinder 12 When assembled, the cardboard cylinder 12 is thus reinforced at either end by the first and second framing elements 22 and 32 .
- the end framing elements 22 and 32 are formed from moulded plastic.
- the first and second end framing structures 22 and 32 reinforce the bottom and top of the container 10 , respectively. It will be appreciated that positional descriptions such as “top”, “bottom” and the like should, unless otherwise indicated, be taken in the context of the figures and should not be considered limiting.
- the framing element 32 is provided with a variant of the hook-shaped connector 34 which is formed by a flange 36 having an outwardly curved end 38 .
- the flange 36 extends continuously along the peripheral portion of the framing element 32 .
- the framing element 32 is also provided with apertures to allow the product it contains to be poured out.
- the framing element 22 is provided with a plurality of hooked-shaped connectors 26 distributed along the peripheral portion 24 of the framing element 22 .
- these two variants of framing elements, 22 and 32 both comprise respective collars 40 , 42 sized and shaped for fitting snugly over the corresponding open ends 14 , 28 of the cardboard hollow body 12 when the framing elements 22 , 32 are connected cardboard body 12 .
- the framing elements 22 , 32 are also each provided with cover walls, 44 and 46 respectively, integral to collars 40 and 42 .
- the cover walls 44 , 46 are for closing the opening 16 of the cardboard hollow body when the framing elements 22 , 32 are connected to the open ends 14 , 28 .
- the cover walls 44 , 46 integrally extend from the respective collars 40 , 42 , perpendicularly across the body 12 , the framing element 22 closing the bottom of the container 10 completely, while the framing element 32 almost completely closes the top end of the container 10 , safe for the apertures.
- Such container can be used for example for powdered cleanser.
- FIGS. 10 to 13 a third variant of a framing element 48 is shown.
- This variant 48 can be used for example with the container 10 of FIG. 1 , in replacement of the top framing element 22 .
- This variant of the framing element 48 has an annular shape and has its peripheral portion defining a lid flange 50 , which defines in turn an aperture in the framing element 48 .
- This lid flange 50 allows for sealingly and removably receiving a lid (not shown), allowing to close off the aperture.
- This variant of the framing element is particularly advantageous for container food product, such as pasta or coffee for example.
- the lid could be hinged to or snap fitted over the lid 50 .
- This third variant 48 is also provided with hook-shaped connectors 26 extending from the lid flange 50 , and a collar 40 for snugly fitting over the rim 30 .
- the lid flange 50 advantageously provides a support for exerting the pulling force required to remove the framing element 48 from the cardboard body 12 . Since the rolled rim 30 is made of cardboard, it has a relative flexibility and is able to be deformed when a substantial amount of pulling force is applied on the framing element 48 .
- Such construction of the container 10 when assembled, is particularly advantageous since it is sturdy enough to allow normal usage of the container and resist impacts, changes of temperature and humidity generally occurring during normal use of the container, and yet it allows the container to be dissembled such that its main components can be recycled or even reused if their state permits it, when a sufficient amount of force is applied to disengage the framing elements from the cardboard tube 12 .
- the container 52 comprises a framing element 22 for closing off the bottom end of the container.
- the container 52 includes a bag 54 for lining an inner surface 56 of the sidewall 18 the cardboard hollow body 12 .
- the bag 54 comprises an open end 58 , a closed end and a diameter that is sized to fit within the cylinder 12 .
- the framing element 53 provides an end framing structure to the upper end of the body 12 , and allows clamping and maintaining in place the bag 54 within the body 12 .
- the bag 54 has an open end 58 clampable between the inwardly rolled rim 30 and the connector 26 .
- the container 52 also includes a removable lid 70 which can be sealingly closed over the framing element 53 .
- the container 52 is provided with the bag 54 for containing a liquid, a gel or similar substance.
- a bag 54 may be desirable in order to protect the contents of the container 52 from humidity and/or to prevent odours from escaping the container 52 .
- the bag 54 can advantageously be used to protect the cardboard cylinder 12 , whose main role is to provide structure to the container 52 , from being damaged by the substance contained therein.
- a metalized bag comprising an interior metallic layer can be used.
- the closed end of the bag 54 could be fixed to the bottom end framing structure 14 or could simply be left loose, extending downwards within the cardboard body 12 as illustrated. As such, whatever is stored within the container 52 is sealed within the walls of the bag 54 , the collar 40 and the lid 70 .
- a desirable vacuum may be created between the bag 54 and the cardboard body 12 as the container 10 is assembled and filled. This vacuum can serve to keep the bag 54 tight against the inside of the cardboard body 12 even as it is emptied.
- the connector 26 comprises an axial section 60 ending with a hook 62 extending radially and outwardly towards the sidewall of the container, and the rolled rim 30 comprises an axial section 64 and a free end 66 , and when the framing element 53 is connected to the open end, the axial section 60 of the connector 26 is adjacent the axial section 64 of the rolled rim 30 , and the hook 62 interlocks the free end 66 of the rolled rim 30 , underneath the free end 66 .
- the ratio of the length of the hook 62 and of the length of the axial section 60 varies between 15% and 45%, and more preferably between 20% and 35%.
- the clamped section of the bag 38 extends all the way in the collar 40 of the framing element 53 , further retaining the bag 54 .
- the bag 54 is not attached or fixed to the inner surface 56 of the cardboard hollow body 12 with any adhesive or glue.
- the bag 54 can simply be held loose within the body 12 or be maintained in contact with the inner surface 56 of the sidewall of the body 12 by vacuum. Both alternatives advantageously allow, after use of the container, easy removal of the bag from the cardboard body, in order to recycle the cardboard body 12 or both the cardboard body 12 and the plastic bag 54 .
- FIGS. 20 to 23 show the variant of the framing element 53 .
- This variant is provided with a flange lid 50 especially adapted to receive a lid, such as the ones typically used for paint containers.
- the framing element 53 is also provided with a tapered inner flange 68 which can advantageously hide the inwardly rolled rim and provides a smooth transition between the interior of the container and the framing element 53 , facilitating the pouring of paint in a pan for example.
- FIGS. 24 and 25 another alternative for lining the cardboard hollow tube 12 is shown.
- the bag 54 is wrapped around the sidewall 18 the cardboard hollow body 12 for lining both inner and outer surfaces of the sidewall 18 , the bag being then clampable at both ends 14 , 28 of the cardboard hollow body 12 .
- the container 52 is assemble, the bag 54 is clamped between each of the inwardly rolled rims 20 , 30 and the connectors 26 of the corresponding framing element 22 , 53 .
- a longer bag 54 is provided and extends not just within the body 12 , as discussed above, but along its exterior as well. Rather than being clamped between the upper framing element 53 and upper end 28 at its open end, it would be clamped for example at the lower end first, with framing element 22 , approximately at midpoint of the bag 54 .
- the framing elements in FIGS. 24 and 25 are not shown for clarity purposes.
- the remainder of the bag 54 i.e. the portion between its midpoint and open end 28 , would pass back along the outer surface of the body 12 , preferably fitting tightly therearound. The bag 54 would then clamped between the upper framing structure 53 and the upper end 28 of the cylinder 12 .
- Such a bag 54 would therefore be able to both contain a liquid within the container 52 and provide protection for the exterior of the cardboard cylinder 12 .
- the portion of the bag 54 which extends outside the body 12 could be heat-shrunk in order to ensure the tightness of the bag 54 around the exterior of the body 12 .
- the bag is not glued or fixed with an adhesive to the cardboard body 12 .
- the framing element 74 includes two components, a first component 74 a comprising the peripheral portion 24 and a second component comprising the connector and its hook 62 .
- the two components 74 a, 74 b are connectable to one another with complementary connecting means.
- the first component 74 a is provided with a groove 76
- the second component 74 b is provided with a clipping element 78 for fitting in the groove 76 .
- the groove 76 and clipping element 78 form a tongue-and-groove joint for connecting the first and second components 74 a, 74 b together.
- the connecting element 78 can be provided with a slight protuberance, or lip, in order to maintain the connecting element 78 compressed within the groove 76 .
- this two-piece construction of the framing element 74 is divided into into upper and lower portions which are clipped together along complementary radial surfaces.
- This two-piece construction is primarily advantageous when the framing elements are formed by injection moulding or the like.
- the axial portions of the components 74 a and 74 b can be fixed to one another by any other type of complementary attachment means.
- the container 76 includes another variant of a two-piece construction for a framing element 78 is shown.
- Thee framing element 78 comprises two components, a first component 78 a comprising the peripheral portion 24 and a second component 78 b comprising the connector 26 and its hook 62 , the components 78 a being provided with a first threaded surface 80 a, and the other one of the components being provided with a complementary second threaded surface 80 b.
- the components 78 a and 78 b are thus screwable to one another.
- a two-piece construction is primarily advantageous when the framing elements are formed by injection moulding or the like.
- the framing element 78 can then be assembled by positioning the first and second components 78 a, 78 b on the top side of the rolled rim 30 and by screwing them together, thereby sandwiching the rim 30 such that the resultant hook-shaped connector 26 fixes the framing element 78 in place. It will be appreciated that constructing a framing element from two moulded pieces, and more particularly separating the outwardly extending hook 62 from the collar 40 such as shown here, can greatly reduce the complexity of the moulds required to form this part.
- a two-piece construction of the framing element can include a first component provided with a series of alternating grooves and bulges, and a second component provided with complementary alternating grooves and bulges, the first and second components being snapable or clipable to one another.
- the cardboard body 12 has an elongated form and comprises a framing element 84 .
- a bag (not visible) can be disposed within the body 12 .
- the top framing element 84 has a construction similar to the one of the previous variant 78 .
- the framing element 84 has a threaded two-piece construction and further comprises a centrally mounted spout 86 through which the contents of the container 82 can exit.
- a bad can be positioned within the cardboard cylinder 12 and a piercing device can extend towards it, downwards from the spout 86 , such as generally used in container for silicone or other types of caulking.
- a bottom plate 88 is provided at the opposite end of the body 12 .
- This bottom plate 88 is positioned initially at or near the bottom extremity of the cardboard cylinder 12 and is able to slide axially within the cylinder 12 .
- a bag is also anchored to the bottom plate 88 , although it is not clamped between the framing element 84 and the cylinder 12 , as described for embodiments illustrated in FIGS. 16-19 .
- Such a container 82 can be used to distribute a liquid or gel substance, such as a silicone or polyurethane caulk or the like.
- a bag is inserted in the cardboard body 12 and preferably comprises a metalized liner along its inside.
- a cylindrical cartridge can be loaded into a mechanical “gun” which is used to distribute the contents thereof.
- the bottom plate 88 Prior to use, the contents of the bag are sealed therewithin.
- the bottom plate 88 is pushed into the cylinder 12 , for example through the action of a caulking gun. Pushing the bottom plate 88 inwards will first force the bag against a piercing device, thereby puncturing it, and second force the contents of the bag out through the spout 86 .
- a container system in accordance with the present invention advantageously requires no crimping, seaming, bonding or other permanent joining.
- the cardboard hollow body can be connected to the framing element(s) via engagement of the rolled rim (or rims) alone.
- the container system can be easily disassembled after use. It will be appreciated that this ability to be disassembled advantageously enables the individual components (the hollow body, the end framing structures, the bag if present) to be separated and recycled as desired. If the container system were filled with a non-recyclable substance such as paint, the plastic bag liner can be thrown out and, depending on the embodiment, the end framing structure if such were in contact with the paint. The remainder, including the cardboard hollow body, would nonetheless be recyclable.
- the present container system which can be used to store a wide range of substances and items, from paint and caulk as described above to foodstuffs such as pasta or coffee and various other products.
- a container system in accordance with the present invention may advantageously enables considerable weight savings compared to equivalently sized all-metal or all-plastic containers—up to 30% for an all-metal container.
- the present container system also enables considerable costs savings compared to conventional cardboard composite containers.
Abstract
The present invention provides a recyclable composite container. The recyclable composite container comprises a cardboard hollow body having an open end defining an opening. The body is formed by a sidewall having an inwardly rolled rim at the open end. The container also comprises a framing element which is removably connectable to the open end of the cardboard hollow body. The framing element has a peripheral portion and a hook-shaped connector linked to this peripheral portion. The connector is for engaging with the inwardly rolled rim of the cardboard hollow body. Such construction thereby allows connection of the framing element to the cardboard hollow body by hooking the connector to the rim of the cardboard hollow body, and disconnection of the framing element from the cardboard hollow body by pulling the framing element so as to disengage the connector from the rim.
Description
- The present invention generally relates to packaging and more particularly relates to a composite container system which can be disassembled and the components thereof recycled.
- Packaging, such as box-shaped containers, are normally made entirely from a single material such as metal, plastic, wood or cardboard. Also known are composite containers made from combinations of either metal and plastic or metal and cardboard. When an impervious or leak-proof container is required for substances such as paint, toxic or harmful chemical products and the like, which may include volatile or other chemically active components, the containers are generally made entirely of a single material such as metal or plastic because these materials enable the containers to be made both leak-proof and structurally rigid.
- The known composite containers typically comprise cardboard tubes closed at either end with metal end framing structures. The peripheral edges of these end framing structures are typically joined to the cardboard tube by a crimping or seaming process wherein the edge of the end framing structure is bent around one of the cylinder's extremities, thereby permanently deforming and connecting both the end framing structure and the cylinder's extremity. The crimping can also retain a metallised liner which is provided along the interior surface of the cardboard cylinder.
- Other known composite containers are for containing food products. They are typically made of a cardboard tube having both extremities ending with outwardly rolled rims.
- The inside wall of the tube is provided with an impervious liner in order to render it airtight and watertight. The bottom of such a container is generally provided with a metallic closure and the top end is closed with a membrane sealed to the impervious liner. The rim of the top end must be outwardly rolled in order to allow the membrane to be sealed to the exposed liner of the rim, as the sealing of the membrane would not be possible with inwardly rolled rims. A reusable end cap is snapped over the outwardly rolled rim.
- When manufacturing such containers, the liner ply is applied over the cardboard ply using an adhesive, and the combined plies are heated in such a way that they are bonded together thus forming a single thicker ply, which is then rolled into a tube. The recycling of the different components of such containers is simply not possible because of the crimped metallic closure, and because the cardboard plies are bonded with polymeric liners using adhesive.
- Also known to the Applicant is document U.S. Pat. No. 7,703,626, describing a container having an outwardly rolled rim and closed by a cover. The cover has an annular ring provided with a projection located underneath the rim. The cover also has a detachable portion which must be removed in order to access the interior of the container. The rolled rim must thus be rolled outwardly in order for users to access the detachable portion of the cover.
- U.S. Pat. No. 4,856,708 describes an adhesively secured container cover. The cover includes a ring fitted over the rolled edge of a container wall. The ring is maintained in place with an adhesive, the ring having an annular cavity for receiving the adhesive. As it can be appreciated, the closure of the container can not be removed from the sidewall of the container once in place, and thus can not be easily recycled.
- U.S. Pat. No. 4,700,867 describes a sleeved container used to contain juice concentrates and the like. The container includes an outer cardboard sleeve and an inner plastic sleeve. The inner plastic sleeve is provided with an outturned flange fitted over the upper end of the cardboard sleeve and includes an upper portion which is moulded or formed such as to include a groove into which the tongue of the closure can fit.
- U.S. Pat. No. 4,312,459 describes a paint can rim cover and a lid, the rim cover being used to prevent paint from drying within the groove of the rim of a paint can of well-known construction. A typical paint can is formed of a cardboard cylinder having its upper end outwardly rolled and of a metallic rim rolled and crimped around the outwardly rolled end of the cardboard cylinder. The connection between the cardboard cylinder and the metallic rim is made so as to be permanent. The plastic rim cover of the invention is destined to cooperate with the metallic rim of the paint can, the rim cover having a lip which cooperates with the bead of the metallic rim. U.S. Pat. No. 6,616,110 describes yet another type of device connectable to the metallic rim of a typical paint can.
- Also known in the art or in related fields of the art are the following documents: U.S. Pat. No. 3,127,052; U.S. Pat. No. 3,815,778; U.S. Pat. No. 3,973,719; U.S. Pat. No. 4,280,653; U.S. Pat. No. 5,160,063; U.S. Pat. No. 5,669,550; U.S. Pat. No. 6,250,492; U.S. Pat. No. 6,675,971; U.S. Pat. No. 7,311,218; U.S. Pat. No. 7,703,626; EP0952087, EP1081051, EP1092526, EP1092647 ; EP 1104744; US 2009/0283526; WO97/47525; GB 2235920; U.S. Pat. No. 3,730,382; U.S. Pat. No. 3,753,511; U.S. Pat. No. 3,770,156; U.S. Pat. No. 3,792,797; U.S. Pat. No. 3,817,420; U.S. Pat. No. 3,915,336; U.S. Pat. No. 4,266,686; U.S. Pat. No. 4,312,459; U.S. Pat. No. 4,491,238; U.S. Pat. No. 4,518,097; U.S. Pat. No. 4,676,392; U.S. Pat. No. 4,679,699; U.S. Pat. No. 4,582,707; U.S. Pat. No. 4,700,867; U.S. Pat. No. 4,718,571; U.S. Pat. No. 4,856,708; U.S. Pat. No. 5,035,387; U.S. Pat. No. 5,161,689; U.S. Pat. No. 5,246,134; U.S. Pat. No. 5,295,632; U.S. Pat. No. 5,316,169; U.S. Pat. No. 5,443,853; U.S. Pat. No. 5,794,814; U.S. Pat. No. 5,806,710; U.S. Pat. No. 5,950,861; U.S. Pat. No. 6,220,471; U.S. Pat. No. 6,616,110; U.S. Pat. No. 6,964,348; U.S. Pat. No. 7,350,789; U.S. Pat. No. 7,350,789; U.S. 20090159607; and U.S. 20110056976.
- The main drawback of prior composite containers is that once assembled these containers cannot be easily disassembled, making recycling of their various components very difficult.
- It would therefore be desirable to provide a composite container system which can overcome this disadvantage.
- It would also be desirable to provide a container system which can be dissembled and then recycled, at least partly, and that would also be versatile, lightweight, inexpensive and/or easily manufactured.
- In accordance with the present invention, a recyclable composite container is provided.
- The recyclable composite container comprises a cardboard hollow body having an open end defining an opening. The body is formed by a sidewall having an inwardly rolled rim at the open end.
- The container also comprises a framing element which is removably connectable to the open end of the cardboard hollow body. The framing element has a peripheral portion and a hook-shaped connector linked to this peripheral portion. The connector is for engaging with the inwardly rolled rim of the cardboard hollow body.
- Such construction thereby allows connection of the framing element to the cardboard hollow body by hooking the connector to the rim of the cardboard hollow body, and disconnection of the framing element from the cardboard hollow body by pulling the framing element so as to disengage the connector from the rim.
- The container according to the invention provides a connection of the framing element and the cardboard hollow body sturdy enough to allow a normal use of the container, for example for containing paint, silicone or food, and for resisting pressure and temperature variations that can occur during transportation or handling of the container. The connection is at the same time removable such that by applying sufficient amount of force, the framing element can be dissembled from the cardboard hollow body, in order to recycle the main components of the container. When describing the relation of the connector to the peripheral portion of the framing element, it should be understood that the word “linked” means that the connector can be either integral to the peripheral portion of the framing element, or connected to it, either directly or indirectly, via another component.
- Having the container with an inwardly rolled rim provides the advantage of hiding the rolled rim and the connector inside the container, such that the person handling the container during normal use does not have readily access to these connecting elements. Having the rims rolled inwardly also allows providing a more compact and uniform container when viewed from the outside, thus improving its aesthetics, because the connector and the rolled rims are hidden inside the container.
- By composite container, it is meant the container is made of different parts made of different materials.
- By framing element, it is meant an element substantially rigid to provide rigidity and structure to the cardboard hollow body.
- By peripheral portion, it is meant a zone, an area or a section of the framing element located along its periphery.
- The expression “removably connected” refers to the framing element rather that to a lid, and is intended to mean that when applying a predetermined amount of pulling force on the framing element, the connector can be disengaged from the inwardly rolled rims, allowing the framing element to be disconnected from the cardboard hollow body.
- Preferably, the connector comprises an axial section ending with a hook extending radially and outwardly, and the rolled rim comprises an axial section and a free end, and when the framing element is connected to the open end, the axial section of the connector is adjacent the axial section of the rolled rim, and the hook interlocks the free end of the rolled rim.
- In accordance with a first variant of the container, the connector comprises a flange having an outwardly curved end, the flange extending continuously along said peripheral portion.
- In accordance with a second variant of the container comprises a plurality of said of hooked-shaped connector distributed along said peripheral portion.
- Preferably, the framing element comprises a cover wall integral to the collar, for closing the opening of the cardboard hollow body when the framing element is connected to the open end.
- Preferably, the peripheral portion of the framing element is a lid flange defining an aperture, for sealingly and removably receiving a lid.
- Preferably, the recyclable composite container comprises a bag for lining an inner surface of the sidewall of the cardboard hollow body, the bag having an open end clampable between the inwardly rolled rim and the connector.
- Other objects, advantages and features of the present invention will become more apparent upon reading the following non-restrictive description of preferred embodiments thereof, given for the purpose of exemplification only, with reference to the accompanying drawings in which:
-
FIG. 1 is an exploded view of a container according to a preferred embodiment of the invention. -
FIG. 2 is a top perspective view of a framing element according to a first variant. -
FIG. 3 is a bottom perspective view of the framing element ofFIG. 2 . -
FIG. 4 is a top view of the framing element ofFIG. 2 . -
FIG. 5 is a close-up of a portion of the cross-sectional view of the framing element ofFIG. 4 , taken along line 5-5. -
FIG. 6 is a top perspective view of a framing element according to a second variant. -
FIG. 7 is a bottom perspective view of the framing element ofFIG. 6 . -
FIG. 8 is a top view of the framing element ofFIG. 6 . -
FIG. 9 is a close-up of a portion of the cross-sectional view of the framing element ofFIG. 8 , taken along line 9-9. -
FIG. 10 is a top perspective view of a framing element according to a third variant. -
FIG. 11 is a bottom perspective view of the framing element ofFIG. 10 . -
FIG. 12 is a top view of the framing element ofFIG. 10 . -
FIG. 13 is a close-up of a portion of the cross-sectional view of the framing element ofFIG. 12 , taken along line 13-13. -
FIG. 14 is a top perspective view of preferred variant of a cardboard hollow body. -
FIG. 15 is a cross-sectional view of the cardboard hollow body ofFIG. 15 . -
FIG. 16 is an exploded view of a container according to another preferred embodiment of the invention. -
FIG. 17 is a top perspective view of the container ofFIG. 16 when assembled. -
FIG. 18 is a top view of the container ofFIG. 16 , when assembled, without the lid. -
FIG. 19 is a close-up view of a portion of the container ofFIG. 18 , taken along lines 19-19. -
FIG. 20 is a top perspective view of a framing element according to a fourth variant. -
FIG. 21 is a bottom perspective view of the framing element ofFIG. 20 . -
FIG. 22 is a top view of the framing element ofFIG. 20 . -
FIG. 23 is a cross-sectional view of the framing element ofFIG. 22 , taken along line 23-23.FIG. 23A is a closed view of a portion ofFIG. 23 . -
FIG. 24 is a top view of a cardboard hollow body lined with a bag. -
FIG. 25 is a cross-section view of the cardoboard hollow body ofFIG. 24 , taken along lines 25-25. -
FIG. 26 is a top perspective view of a container according to another preferred embodiment of the invention. -
FIG. 27 is a top view of the container ofFIG. 26 . -
FIG. 28 is a close-up view of a portion of the container ofFIG. 27 , taken along lines 28-28. -
FIG. 29 is a top perspective view of a container according to another preferred embodiment of the invention. -
FIG. 30 is a top view of the container ofFIG. 29 . -
FIG. 31 is a close-up view of a portion of the container ofFIG. 27 , taken along lines 31-31. -
FIG. 32 is a top perspective view of a container according to another preferred embodiment of the invention. -
FIG. 33 is a top view of the container ofFIG. 32 . -
FIG. 34 is a close-up view of a portion of the container ofFIG. 27 , taken along lines 34-34. - In the following description, similar features in the drawings have been given similar reference numerals. In order to preserve clarity, certain elements may not be identified in some figures if they are already identified in a previous figure.
- With reference to
FIG. 1 , a recyclablecomposite container 10, hereafter referred as container, is shown. Thecontainer 10 comprises a cardboardhollow body 12 having anopen end 14, defining anopening 16. Thebody 12 is formed by asidewall 18 having an inwardly rolledrim 20 at the bottomopen end 14. The container also comprises a framingelement 22 removably connectable to theopen end 14. - The framing
element 22 has aperipheral portion 24 and a hook-shapedconnector 26 linked to theperipheral portion 24 for engaging with the inwardly rolledrim 20 of the cardboardhollow body 12. In this variant of the framing element, theconnector 26 extends from theperipheral portion 24. The framingelement 22 can be connected to the cardboardhollow body 12 by hooking theconnector 26 to the inwardly rolledrim 20 of the cardboardhollow body 12, and disconnected from the cardboardhollow body 12 by pulling the framingelement 22 so as to disengage theconnector 26 from therim 20. - During assembly, the framing
element 22 is forced into thecylinder 12 until theconnectors 26 are past the rolledrim 20. Preferably, theconnector 26 has a tapered surface opposite therim 30 of thecylinder 12 so as to ease this process. -
FIGS. 14 and 15 show the cardboardhollow body 12 with greater details. Although the cardboardhollow body 12 is shown as cylindrical, it will be appreciated that the shape of thebody 12 is not limited to circular cross-sections. Thecardboard body 12 has at least one rim, and in the present case two inwardly rolled rims 20, 30 which can have different types of shapes, such as a semi-circular or a semi-oval shape. At least one of therims sidewall 18 of thebody 12. - A cardboard hollow body is typically formed by convoluting or spiralling plies of cardboard or kraft-type paper material. The rolled rims 20, 30 can be formed by forcing the edge of the
cylinder 12 inward so as to form an inwardly extending, flange-like portion. Preferably, these rolledrims rims - Back to
FIG. 1 , thecontainer 10 also comprises asecond framing element 32 removably connectable to the secondopen end 28, corresponding to the top end of thebody 12. Thesecond framing element 32 also has a peripheral portion and a hook-shaped connector (not shown inFIG. 1 ). Best shown inFIG. 3 , thesecond framing element 32 is similar to thefirst framing element 22 in that it is provided with aperipheral portion 24 and aconnector 34 extending from thatportion 24 to engage with the rolledrim 30. - When assembled, the
cardboard cylinder 12 is thus reinforced at either end by the first andsecond framing elements end framing elements end framing structures container 10, respectively. It will be appreciated that positional descriptions such as “top”, “bottom” and the like should, unless otherwise indicated, be taken in the context of the figures and should not be considered limiting. - Now referring to
FIGS. 2 to 5 , the first variant of the framingelement 32 is best shown. The framingelement 32 is provided with a variant of the hook-shapedconnector 34 which is formed by aflange 36 having an outwardlycurved end 38. Theflange 36 extends continuously along the peripheral portion of the framingelement 32. The framingelement 32 is also provided with apertures to allow the product it contains to be poured out. - Referring to
FIGS. 6 to 9 , the second variant of the framingelement 22 is best shown. The framingelement 22 is provided with a plurality of hooked-shapedconnectors 26 distributed along theperipheral portion 24 of the framingelement 22. - With reference to
FIGS. 1 to 9 , these two variants of framing elements, 22 and 32, both compriserespective collars hollow body 12 when the framingelements cardboard body 12. - The framing
elements collars cover walls opening 16 of the cardboard hollow body when the framingelements container 10 is assembled, thecover walls respective collars body 12, the framingelement 22 closing the bottom of thecontainer 10 completely, while the framingelement 32 almost completely closes the top end of thecontainer 10, safe for the apertures. Such container can be used for example for powdered cleanser. - Now referring to
FIGS. 10 to 13 , a third variant of a framingelement 48 is shown. Thisvariant 48 can be used for example with thecontainer 10 ofFIG. 1 , in replacement of thetop framing element 22. This variant of the framingelement 48 has an annular shape and has its peripheral portion defining alid flange 50, which defines in turn an aperture in the framingelement 48. Thislid flange 50 allows for sealingly and removably receiving a lid (not shown), allowing to close off the aperture. This variant of the framing element is particularly advantageous for container food product, such as pasta or coffee for example. The lid could be hinged to or snap fitted over thelid 50. Thisthird variant 48 is also provided with hook-shapedconnectors 26 extending from thelid flange 50, and acollar 40 for snugly fitting over therim 30. - After using the container, and when time comes to dissemble it, the
lid flange 50 advantageously provides a support for exerting the pulling force required to remove the framingelement 48 from thecardboard body 12. Since the rolledrim 30 is made of cardboard, it has a relative flexibility and is able to be deformed when a substantial amount of pulling force is applied on the framingelement 48. Such construction of thecontainer 10, when assembled, is particularly advantageous since it is sturdy enough to allow normal usage of the container and resist impacts, changes of temperature and humidity generally occurring during normal use of the container, and yet it allows the container to be dissembled such that its main components can be recycled or even reused if their state permits it, when a sufficient amount of force is applied to disengage the framing elements from thecardboard tube 12. - With reference to
FIGS. 16 to 23 , another preferred embodiment of a recyclable composite container is shown. Thecontainer 52 comprises a framingelement 22 for closing off the bottom end of the container. Thecontainer 52 includes abag 54 for lining aninner surface 56 of thesidewall 18 the cardboardhollow body 12. Thebag 54 comprises anopen end 58, a closed end and a diameter that is sized to fit within thecylinder 12. The framingelement 53 provides an end framing structure to the upper end of thebody 12, and allows clamping and maintaining in place thebag 54 within thebody 12. As best shown inFIG. 19 , thebag 54 has anopen end 58 clampable between the inwardly rolledrim 30 and theconnector 26. Thecontainer 52 also includes aremovable lid 70 which can be sealingly closed over the framingelement 53. - The
container 52 is provided with thebag 54 for containing a liquid, a gel or similar substance. In addition, abag 54 may be desirable in order to protect the contents of thecontainer 52 from humidity and/or to prevent odours from escaping thecontainer 52. In addition, thebag 54 can advantageously be used to protect thecardboard cylinder 12, whose main role is to provide structure to thecontainer 52, from being damaged by the substance contained therein. For embodiments where a liquid should be contained within a metallic surface, a metalized bag comprising an interior metallic layer can be used. - The closed end of the
bag 54 could be fixed to the bottomend framing structure 14 or could simply be left loose, extending downwards within thecardboard body 12 as illustrated. As such, whatever is stored within thecontainer 52 is sealed within the walls of thebag 54, thecollar 40 and thelid 70. In addition, it will be appreciated that even if thebag 54 is loose, a desirable vacuum may be created between thebag 54 and thecardboard body 12 as thecontainer 10 is assembled and filled. This vacuum can serve to keep thebag 54 tight against the inside of thecardboard body 12 even as it is emptied. - In
FIG. 19 , it can be seen that theconnector 26 comprises anaxial section 60 ending with ahook 62 extending radially and outwardly towards the sidewall of the container, and the rolledrim 30 comprises anaxial section 64 and afree end 66, and when the framingelement 53 is connected to the open end, theaxial section 60 of theconnector 26 is adjacent theaxial section 64 of the rolledrim 30, and thehook 62 interlocks thefree end 66 of the rolledrim 30, underneath thefree end 66. Preferably, the ratio of the length of thehook 62 and of the length of theaxial section 60 varies between 15% and 45%, and more preferably between 20% and 35%. As shown, the clamped section of thebag 38 extends all the way in thecollar 40 of the framingelement 53, further retaining thebag 54. As it can be appreciated, thebag 54 is not attached or fixed to theinner surface 56 of the cardboardhollow body 12 with any adhesive or glue. Thebag 54 can simply be held loose within thebody 12 or be maintained in contact with theinner surface 56 of the sidewall of thebody 12 by vacuum. Both alternatives advantageously allow, after use of the container, easy removal of the bag from the cardboard body, in order to recycle thecardboard body 12 or both thecardboard body 12 and theplastic bag 54. -
FIGS. 20 to 23 show the variant of the framingelement 53. This variant is provided with aflange lid 50 especially adapted to receive a lid, such as the ones typically used for paint containers. The framingelement 53 is also provided with a taperedinner flange 68 which can advantageously hide the inwardly rolled rim and provides a smooth transition between the interior of the container and the framingelement 53, facilitating the pouring of paint in a pan for example. - With reference to
FIGS. 24 and 25 , another alternative for lining the cardboardhollow tube 12 is shown. Thebag 54 is wrapped around thesidewall 18 the cardboardhollow body 12 for lining both inner and outer surfaces of thesidewall 18, the bag being then clampable at both ends 14, 28 of the cardboardhollow body 12. When thecontainer 52 is assemble, thebag 54 is clamped between each of the inwardly rolled rims 20, 30 and theconnectors 26 of the corresponding framingelement - In this variant, a
longer bag 54 is provided and extends not just within thebody 12, as discussed above, but along its exterior as well. Rather than being clamped between theupper framing element 53 andupper end 28 at its open end, it would be clamped for example at the lower end first, with framingelement 22, approximately at midpoint of thebag 54. The framing elements inFIGS. 24 and 25 are not shown for clarity purposes. The remainder of thebag 54, i.e. the portion between its midpoint andopen end 28, would pass back along the outer surface of thebody 12, preferably fitting tightly therearound. Thebag 54 would then clamped between theupper framing structure 53 and theupper end 28 of thecylinder 12. Such abag 54 would therefore be able to both contain a liquid within thecontainer 52 and provide protection for the exterior of thecardboard cylinder 12. The portion of thebag 54 which extends outside thebody 12 could be heat-shrunk in order to ensure the tightness of thebag 54 around the exterior of thebody 12. Of course, other ways of wrapping the inner and outer surfaces of the cardboardhollow body 12 can be considered. Preferably, the bag is not glued or fixed with an adhesive to thecardboard body 12. - Now referring to
FIGS. 26 to 28 , another preferred embodiment of a recyclablecomposite container 72 is shown. In this embodiment, the framingelement 74 includes two components, afirst component 74 a comprising theperipheral portion 24 and a second component comprising the connector and itshook 62. The twocomponents first component 74 a is provided with agroove 76, and thesecond component 74 b is provided with aclipping element 78 for fitting in thegroove 76. In other words, thegroove 76 and clippingelement 78 form a tongue-and-groove joint for connecting the first andsecond components FIG. 28 , the connectingelement 78 can be provided with a slight protuberance, or lip, in order to maintain the connectingelement 78 compressed within thegroove 76. - Advantageously, this two-piece construction of the framing
element 74 is divided into into upper and lower portions which are clipped together along complementary radial surfaces. This two-piece construction is primarily advantageous when the framing elements are formed by injection moulding or the like. Of course, the axial portions of thecomponents - Now referring to
FIGS. 29 to 31 , thecontainer 76 includes another variant of a two-piece construction for a framingelement 78 is shown. Thee framingelement 78 comprises two components, afirst component 78 a comprising theperipheral portion 24 and asecond component 78 b comprising theconnector 26 and itshook 62, thecomponents 78 a being provided with a first threadedsurface 80 a, and the other one of the components being provided with a complementary second threadedsurface 80 b. Thecomponents element 78 can then be assembled by positioning the first andsecond components rim 30 and by screwing them together, thereby sandwiching therim 30 such that the resultant hook-shapedconnector 26 fixes the framingelement 78 in place. It will be appreciated that constructing a framing element from two moulded pieces, and more particularly separating the outwardly extendinghook 62 from thecollar 40 such as shown here, can greatly reduce the complexity of the moulds required to form this part. Yet in another embodiment, a two-piece construction of the framing element can include a first component provided with a series of alternating grooves and bulges, and a second component provided with complementary alternating grooves and bulges, the first and second components being snapable or clipable to one another. - With reference now to
FIGS. 32 to 34 , yet another embodiment of the recyclablecomposite container 82 is illustrated. Thecardboard body 12 has an elongated form and comprises a framingelement 84. A bag (not visible) can be disposed within thebody 12. Best shown inFIG. 34 , thetop framing element 84 has a construction similar to the one of theprevious variant 78. The framingelement 84 has a threaded two-piece construction and further comprises a centrally mountedspout 86 through which the contents of thecontainer 82 can exit. A bad can be positioned within thecardboard cylinder 12 and a piercing device can extend towards it, downwards from thespout 86, such as generally used in container for silicone or other types of caulking. Instead of a bottom end framing element, abottom plate 88 is provided at the opposite end of thebody 12. Thisbottom plate 88 is positioned initially at or near the bottom extremity of thecardboard cylinder 12 and is able to slide axially within thecylinder 12. Preferably, a bag is also anchored to thebottom plate 88, although it is not clamped between the framingelement 84 and thecylinder 12, as described for embodiments illustrated inFIGS. 16-19 . - Such a
container 82 can be used to distribute a liquid or gel substance, such as a silicone or polyurethane caulk or the like. In such cases, a bag is inserted in thecardboard body 12 and preferably comprises a metalized liner along its inside. As is known in the art, such a cylindrical cartridge can be loaded into a mechanical “gun” which is used to distribute the contents thereof. - Prior to use, the contents of the bag are sealed therewithin. In use, the
bottom plate 88 is pushed into thecylinder 12, for example through the action of a caulking gun. Pushing thebottom plate 88 inwards will first force the bag against a piercing device, thereby puncturing it, and second force the contents of the bag out through thespout 86. - While the containers illustrated all comprise a circular cross-section, it will be appreciated that various other shapes, including oval, square or rectangle, could also be used. Moreover, a composite container system in accordance with the present invention could be embodied by various other storing devices or containers.
- In sharp contrast with existing containers, both composite and not, it will be appreciated that a container system in accordance with the present invention advantageously requires no crimping, seaming, bonding or other permanent joining. The cardboard hollow body can be connected to the framing element(s) via engagement of the rolled rim (or rims) alone. As such, the container system can be easily disassembled after use. It will be appreciated that this ability to be disassembled advantageously enables the individual components (the hollow body, the end framing structures, the bag if present) to be separated and recycled as desired. If the container system were filled with a non-recyclable substance such as paint, the plastic bag liner can be thrown out and, depending on the embodiment, the end framing structure if such were in contact with the paint. The remainder, including the cardboard hollow body, would nonetheless be recyclable.
- The present container system, which can be used to store a wide range of substances and items, from paint and caulk as described above to foodstuffs such as pasta or coffee and various other products. In addition, it will be appreciated that a container system in accordance with the present invention may advantageously enables considerable weight savings compared to equivalently sized all-metal or all-plastic containers—up to 30% for an all-metal container. In addition, the present container system also enables considerable costs savings compared to conventional cardboard composite containers.
- Although preferred embodiments of the present invention have been described in detail herein and illustrated in the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be effected therein without departing from the scope of the present invention.
Claims (13)
1. A recyclable composite container comprising:
a cardboard hollow body having an open end defining an opening, the body being formed by a sidewall having an inwardly rolled rim at the open end;
a framing element removably connectable to the open end, the framing element having a peripheral portion and a hook-shaped connector linked to the peripheral portion for engaging with the inwardly rolled rim of the cardboard hollow body;
thereby allowing connection of the framing element to the cardboard hollow body by hooking the connector to the rim of the cardboard hollow body, and disconnection of the framing element from the cardboard hollow body by pulling the framing element so as to disengage the connector from the rim.
2. The recyclable composite container according to claim 1 , wherein the connector comprises an axial section ending with a hook extending radially and outwardly, and the rolled rim comprises an axial section and a free end, and when the framing element is connected to the open end, the axial section of the connector is adjacent the axial section of the rolled rim, and the hook interlocks the free end of the rolled rim.
3. The recyclable composite container according to claim 1 , wherein the connector comprises a flange having an outwardly curved end, the flange extending continuously along said peripheral portion.
4. The recyclable composite container according to claim 1 , comprising a plurality of said of hooked-shaped connector distributed along said peripheral portion.
5. The recyclable composite container according to claim 1 , wherein the peripheral portion comprises a collar sized and shaped for fitting snugly over the open end of the cardboard hollow body when the framing element is connected to the open end.
6. The recyclable composite container according to claim 4 , wherein the framing element comprises a cover wall integral to the collar, for closing the opening of the cardboard hollow body when the framing element is connected to the open end.
7. The recyclable composite container according to claim 1 , wherein the peripheral portion of the framing element is a lid flange defining an aperture, for sealingly and removably receiving a lid.
8. The recyclable composite container according to claim 1 , further comprising a bag for lining an inner surface of the sidewall the cardboard hollow body, the bag having an open end clampable between the inwardly rolled rim and the connector.
9. The recyclable composite container according to claim 1 , wherein the cardboard hollow body further comprises:
a second open end having an inwardly rolled rim defining a second opening;
a second framing element removably connectable to the second open end, said second framing element having a peripheral portion and a hook-shaped connector, said connector of the second framing element extending from the peripheral portion of the second framing element, for engaging with the inwardly rolled rim of the second open end of the cardboard hollow body.
10. The recyclable composite container according to claim 9 , further comprising a bag wrapable around the sidewall the cardboard hollow body for lining both inner and outer surfaces of the sidewall, the bag being clampable at both ends of the cardboard hollow body between each of the inwardly rolled rim and the connector of the corresponding framing element.
11. The recyclable composite container according to claim 1 , wherein the cardboard hollow body is tubular and the framing element has an annular shape.
12. The recyclable composite container according to claim 1 , wherein the framing element comprises two components, a first component comprising the peripheral portion and a second component comprising the connector, one of the components being provided with a groove, and the other one of the components being provided with a clipping element for fitting in said groove, the groove and clipping element forming a tongue-and-groove joint for connecting the first and second components together.
13. The recyclable composite container according to claim 1 , wherein the framing element comprises two components, a first component comprising the peripheral portion and a second component comprising the connector, one of the components being provided with a first threaded surface, and the other one of the components being provided with a complementary second threaded surface, whereby the first and second components are screwable to one another.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/938,876 US20140263304A1 (en) | 2011-05-16 | 2013-07-10 | Recyclable compost container |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2011/000580 WO2011143754A1 (en) | 2010-05-17 | 2011-05-16 | Recyclable composite container |
US13/938,876 US20140263304A1 (en) | 2011-05-16 | 2013-07-10 | Recyclable compost container |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2011/000580 Continuation WO2011143754A1 (en) | 2010-05-17 | 2011-05-16 | Recyclable composite container |
US13698925 Continuation | 2011-05-16 |
Publications (1)
Publication Number | Publication Date |
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US20140263304A1 true US20140263304A1 (en) | 2014-09-18 |
Family
ID=51522937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/938,876 Abandoned US20140263304A1 (en) | 2011-05-16 | 2013-07-10 | Recyclable compost container |
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US (1) | US20140263304A1 (en) |
Cited By (12)
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US20160207705A1 (en) * | 2015-01-15 | 2016-07-21 | Jared W. Rudiak | Organic waste container system and method of use |
US20160272418A1 (en) * | 2015-03-19 | 2016-09-22 | Barenthal North America, Inc. | Slide on body waste bin |
US20170233160A1 (en) * | 2016-02-12 | 2017-08-17 | The Sherwin-Williams Company | Storage container |
USD803008S1 (en) * | 2014-10-29 | 2017-11-21 | Agneta, LLC | Tea canister |
US20180265284A1 (en) * | 2017-03-15 | 2018-09-20 | Richard H. Rugg | Waste Basket Liner Securing Apparatus |
CN110562596A (en) * | 2019-09-21 | 2019-12-13 | 黑龙江鸿葵科技有限公司 | Container for preventing powder particles in container from being exchanged |
US10526105B2 (en) | 2014-11-14 | 2020-01-07 | Richard Guertin | Recyclable composite container |
EP3730418A1 (en) * | 2019-04-26 | 2020-10-28 | HF Multi-Pack GmbH | Container |
US10823050B1 (en) * | 2016-08-15 | 2020-11-03 | Jonathan L. Barbera | Snap-fit engine cover assembly |
EP4140333A1 (en) * | 2021-08-31 | 2023-03-01 | JT International S.A. | A cartridge for storing a vaporizable material comprising a coating |
US11794458B2 (en) | 2018-09-12 | 2023-10-24 | Great Northern Corporation | Wrapped paperboard packaging |
USD1011671S1 (en) * | 1991-07-02 | 2024-01-16 | Bway Corporation | Container |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD1011671S1 (en) * | 1991-07-02 | 2024-01-16 | Bway Corporation | Container |
USD803008S1 (en) * | 2014-10-29 | 2017-11-21 | Agneta, LLC | Tea canister |
US10526105B2 (en) | 2014-11-14 | 2020-01-07 | Richard Guertin | Recyclable composite container |
US9682817B2 (en) * | 2015-01-15 | 2017-06-20 | Jared W. Rudiak | Organic waste container system and method of use |
US20160207705A1 (en) * | 2015-01-15 | 2016-07-21 | Jared W. Rudiak | Organic waste container system and method of use |
US20160272418A1 (en) * | 2015-03-19 | 2016-09-22 | Barenthal North America, Inc. | Slide on body waste bin |
US10717580B2 (en) * | 2016-02-12 | 2020-07-21 | The Sherwin-Williams Company | Storage container |
US20170233160A1 (en) * | 2016-02-12 | 2017-08-17 | The Sherwin-Williams Company | Storage container |
US10823050B1 (en) * | 2016-08-15 | 2020-11-03 | Jonathan L. Barbera | Snap-fit engine cover assembly |
US10287093B2 (en) * | 2017-03-15 | 2019-05-14 | Richard H. Rugg | Waste basket liner securing apparatus |
US20180265284A1 (en) * | 2017-03-15 | 2018-09-20 | Richard H. Rugg | Waste Basket Liner Securing Apparatus |
US11794458B2 (en) | 2018-09-12 | 2023-10-24 | Great Northern Corporation | Wrapped paperboard packaging |
EP3730418A1 (en) * | 2019-04-26 | 2020-10-28 | HF Multi-Pack GmbH | Container |
CN110562596A (en) * | 2019-09-21 | 2019-12-13 | 黑龙江鸿葵科技有限公司 | Container for preventing powder particles in container from being exchanged |
EP4140333A1 (en) * | 2021-08-31 | 2023-03-01 | JT International S.A. | A cartridge for storing a vaporizable material comprising a coating |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |