WO2002078932A1 - Enclosed area on a blow molded article and method of making the same - Google Patents
Enclosed area on a blow molded article and method of making the same Download PDFInfo
- Publication number
- WO2002078932A1 WO2002078932A1 PCT/US2002/008897 US0208897W WO02078932A1 WO 2002078932 A1 WO2002078932 A1 WO 2002078932A1 US 0208897 W US0208897 W US 0208897W WO 02078932 A1 WO02078932 A1 WO 02078932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- enclosure
- pin
- preform
- cavity
- axis
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000071 blow moulding Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001870 copolymer plastic Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/02—Refuse receptacles; Accessories therefor without removable inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/54—Moulds for undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
- B65F1/1468—Means for facilitating the transport of the receptacle, e.g. wheels, rolls
- B65F1/1473—Receptacles having wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/54—Moulds for undercut articles
- B29C2049/542—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles
- B29C2049/546—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles by translatorilly actuating an auxiliary mould part while the mould is still in a closed position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C49/4817—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity with means for closing off parison ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/50—Moulds having cutting or deflashing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/62—Venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7126—Containers; Packaging elements or accessories, Packages large, e.g. for bulk storage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/727—Fastening elements
- B29L2031/7282—Snap fasteners, clips, press-buttons
Definitions
- the present invention relates to an enclosed area on a blow molded article and method of making the same.
- a molded article that has a pair of cavities, with one cavity that is not parallel to the other cavity (e.g., configured to receive and secure a member or another part).
- Such non-parallel cavities are typically apertures cut into a container, a separate piece (e.g., a bracket), or a "C"- shaped recess that is intended to provide a snap-fit structure.
- An example of such known molded articles is a blow molded container or refuse container having wheels mounted to an axle inserted in the non-parallel cavity.
- Another such molded article may be a blow molded storage enclosure, such as a shed, bin, etc. that typically include a hinge mounted (e.g., fastened, inserted into a dovetail groove, etc.) to a non-parallel cavity on the storage enclosure and/or a lid or cover.
- blow molded articles having cavities that are non- parallel to the main cavity may present disadvantages, such as failure to perform their intended purpose (e.g., an axle or other member is not securely held in a cavity as desired), additional parts are required, restrictive tolerances or undue precision is required for assembly and installation of supplemental parts, cost and time burden in assembly, overall configurations that tend to show visual defects or imperfections, the costs of skilled labor, inspection and occasional repair or quality control during and after assembly or installation, etc.
- blow molded article having an integrally molded wall that provides a cavity or enclosed area. It would also be advantageous to provide a blow molded article that is constructed of fewer components and/or fabricated from fewer parts (e.g., integrally molded or machined). It would further be advantageous to provide a refuse container having an integrally molded bore configured to receive and support an axle. It would be desirable to provide for an enclosed area on a blow molded article and a method of making the same having one or more of these or other advantageous features.
- the method comprises supplying a preform to a mold having a first mold cavity and a second mold cavity, the first cavity having a pin, closing the mold and sealing the preform, supplying a fluid to the preform, expanding the preform so that a first portion and a second portion of the preform expand around the pin, contacting and joining the first portion and the second portion to provide an enclosure, and removing the pin from the enclosure.
- blow molded article includes a body defining a cavity, and a wall integrally-formed with the body and providing an enclosure.
- the refuse container comprises a body defining a cavity having a first axis, a wall defining an enclosure integrally formed with the body and having a second axis which is non- parallel to the first axis, an axle disposed in the enclosed area, and a pair of wheels coupled to the axle.
- the present invention further relates to various features and combinations of features shown and described in the disclosed embodiments.
- Other ways in which the objects of the present invention are accomplished will be described in the following specification or will become apparent to those skilled in the art after they have read this specification. Such other ways are deemed to fall within the scope of the present invention if they fall within the scope of the claims which follow.
- FIGURE 1 is a perspective view of a refuse container according to a preferred embodiment.
- FIGURE 2 is a fragmentary exploded-perspective view of the bottom portion of the refuse container of FIGURE 1.
- FIGURE 3 is a section view of an enclosed area of the refuse container taken along line 3-3 of FIGURE 2.
- FIGURE 4 is a schematic section view of a blow molding apparatus in an open condition and a partly extruded preform according to an exemplary embodiment.
- FIGURE 5 is a schematic section view of the blow molding apparatus of FIGURE 4 in a closed condition.
- FIGURE 6 is a fragmentary schematic section view of the moid as the preform expands and stretches around a core pin.
- blow molded articles e.g., containers, panels, sub-parts, storage enclosures, tanks (e.g., septic tank), etc.
- the enclosure or enclosed area may have any of a variety of applications for other articles that employ a recess, notch, hole, aperture, bore, or the like feature (or otherwise provides for engagement of an item to the blow molded article (e.g., hinge, accessories, and the like).
- the term "container,” “cavity,” and “enclosed area” are intended to be broad terms and not terms of limitation.
- the particular materials used to construct the illustrated embodiments are also illustrative.
- the refuse container components can be made from any of a variety of plastic resins, such as polypropylene, polyethylene, acrylonitrile butadiene styrene ("ABS"), any of a variety of homopolymer plastics, copolymer plastics, plastics with special additives, filled plastics, etc., and a variety of other materials known to those familiar with the art.
- the preferred and exemplary embodiments are illustrated with the enclosure being generally perpendicular to the main cavity of the container, and located on the bottom portion near the edge of the container.
- Alternative embodiments may be constructed with any of a variety of enclosed area orientations according to the desired configuration of the molded article, core pin performance, enclosed area purpose, or manufacturing considerations.
- the enclosed area shown in the illustrated embodiments is generally circular in plan view, but may be elliptical, square, rectangular, multi-sided, or any other shape.
- FIGURE 1 shows a blow molded article (shown as a refuse container 10) according to a preferred embodiment.
- Container 10 includes a main body 12 defining a cavity 14 and a secondary cavity (shown as an enclosure or enclosed area 16).
- Body 12 of container 10 includes an open top 8 defined by a rim 20, and a closed bottom 22 defined by a bottom wall 24.
- Container 10 further includes wheels 26 mounted to an axie 28 and a lid 30 pivotably coupled to body 12 by a hinge 32.
- barrels of hinge 32 maybe integrally formed as described herein to provide another enclosed area configured to receive a hinge pin.
- Enclosed area 16 may have any of a variety shapes, configurations, and orientations, and includes at least one end which is open to an exterior surface 34 of the blow molded article. As shown in FIGURES 2 and 3, enclosed area 16 is a bore 36 that is open at both ends to an exterior surface 38 of body 12 of container 10. Bore 36 has an axis 39 is configured to receive and secure axle 28. Bore 36 is approximately perpendicular to an axis 40 of cavity 14. According to alternative embodiments, enclosed area 16 may have any of a variety of orientations relative to the blow molded article (e.g., parallel and non-parallel to the main cavity). Additionally, the enclosed area may be to be open to the exterior surface of the molded article at one or more places.
- body 12 and bore 36 are formed by a blow molding operation.
- the illustrated apparatus 42 includes a blow molding mold 44 having a pair of mold cavities 46. 48 and a core pin 50. Mold cavities 46, 48 are configured to provide shape and texture to the blow molded article. Mold cavities 46, 48 are moved between an open position (shown in FIGURE 4) and a closed position (shown in FIGURE 5).
- Core pin 50 is configured to provide a desired shape and size of the enclosed area 16. According to a preferred embodiment, core pin 50 is slightly larger (e.g., oversized) than the desired dimensions of the finished enclosed area 16 to compensate for shrinkage upon cooling.
- Core pin 50 may have any of a variety of shapes, configurations, sizes, and the like.
- the position of core pin 50 within mold cavities 46, 48 depends on such the shape, size, and configuration of the core pin 50.
- the distance between core pin 50 and the outer surface of mold cavity 46 and/or 48 is believed to be a function of one or more factors, such as the size and position of the core pin, temperature, pressure, parison material, and the like.
- the core pin is centered (along one or more axes) in the mold.
- core pin 50 is spaced between about 1/16 inch and about 1 inch from mold cavity 46 and/or 48 for typical configurations of core pins that may be used.
- the cross-sectional area and/or dimensions may be any of a variety of amounts, depending on one or more factors such as the material, size of the blow molded article, distance from wall of mold cavity, and the like.
- the core pin may be up to about 8 inches in diameter (e.g., for some tanks, or the like).
- the core pin may be between 1/16 inch and about 1 inch.
- core pin 50 for forming bore 36 in refuse container shown in FIGURE 1 is spaced about 1/8" from the edge of the mold cavity for a 5/ 6" axle.
- the core pin may be spaced any distance from mold cavity which does not cause failure of the inflation (e.g., tearing or rupturing of the parison).
- a preform 52 (or “parison") is supplied to mold 44 in the open position.
- Preform 52 includes a wall 54 and may be provided in any of a variety of configurations (e.g., planar, hollow, tubular shaped, etc.) depending on the desired blow molded article).
- preform 52 is provided by an extrusion machine 56.
- mold 44 is closed, excess material is removed or detached (e.g., "squeezed” off by edges 58, 60 of mold cavities 46, 48) and preform 52 is "sealed” so that the preform is closed by the formation of a weld or seam.
- a fluid is supplied (i.e., injected or blown) into the preform 52, expanding preform 52 within the mold 44 and against mold cavities 46, 48. As preform 52 expands against mold cavities 46, 48, preform 52 adopts the configuration defined by the mold cavities 46, 48.
- the fluid may be any of a variety of known fluids, such as air, carbon dioxide, liquids, gases, etc. that may be stored under pressure and injected into preform 52.
- preform 52 As preform 52 expands, it contacts surface 62 of mold cavities 46, 48. As preform 52 expands and contacts core pin 50, preform 52 stretches to conform to the shape of core pin 50 (e.g., a cylindrical member). Preform 52 continues to stretch until two portions 64, 66 of preform 52 contact and join to form a weld 68 as preform 52 solidifies upon cooling. [0027] During the molding process, air is evacuated as preform 52 is "inflated.” Preferably, air is evacuated through vents 70 disposed about mold 44. According to an exemplary embodiment, core pin 50 includes one or more vents 72 configured to evacuate air from around core pin 52 which may become trapped as portions 64, 66 of preform 52 joins to form weld 68.
- core pin 50 includes one or more vents 72 configured to evacuate air from around core pin 52 which may become trapped as portions 64, 66 of preform 52 joins to form weld 68.
- core pin 50 is removed from the enclosed area 16 of blow molded article.
- Actuation cylinder 74 is configured to move core pin 50 between and extended position and a retracted position.
- core pin 50 may be manually removed from the blow molded article (e.g., before or after the mold cavities 46, 48 have been opened).
- core pin 50 may be left in enclosed area 16 of blow molded article and used in the finished product (e.g., as axle 28 of refuse container 10). Another "core pin” is then positioned in the mold cavities in preparation of the next molding cycle.
- the container may be any of a variety of blow molded articles
- the enclosed area may have any of a variety of shapes, sizes, orientations, and configurations
- the preform may be provided in any of a variety of conventional formats (hollow, tubular, sheet, etc ) such that forming of the enclosed area may similarly be accomplished Accordingly, all such modifications are intended to be included within the scope of the present invention as defined in the appended claims
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10296575T DE10296575T5 (en) | 2001-04-02 | 2002-03-22 | Enclosed area on a blow molded article and method of making the same |
CA002442933A CA2442933A1 (en) | 2001-04-02 | 2002-03-22 | Enclosed area on a blow molded article and method of making the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/824,503 | 2001-04-02 | ||
US09/824,503 US6808674B1 (en) | 2001-04-02 | 2001-04-02 | Enclosed area on a blow molded article and method of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002078932A1 true WO2002078932A1 (en) | 2002-10-10 |
Family
ID=25241563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/008897 WO2002078932A1 (en) | 2001-04-02 | 2002-03-22 | Enclosed area on a blow molded article and method of making the same |
Country Status (6)
Country | Link |
---|---|
US (2) | US6808674B1 (en) |
AR (1) | AR033091A1 (en) |
CA (1) | CA2442933A1 (en) |
DE (1) | DE10296575T5 (en) |
TW (1) | TW583067B (en) |
WO (1) | WO2002078932A1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US6988633B2 (en) * | 2001-11-13 | 2006-01-24 | Custom-Pak, Inc. | Blow molded article with retaining feature and method of creating same |
US7210277B2 (en) | 2003-04-30 | 2007-05-01 | Lifetime Products, Inc. | Partition system |
US7797885B2 (en) | 2004-03-29 | 2010-09-21 | Lifetime Products, Inc. | Modular enclosure |
US7770334B2 (en) | 2004-03-29 | 2010-08-10 | Lifetime Products, Inc. | Door assembly for a modular enclosure |
US8091289B2 (en) | 2004-03-29 | 2012-01-10 | Lifetime Products, Inc. | Floor for a modular enclosure |
US7779579B2 (en) | 2004-03-29 | 2010-08-24 | Lifetime Products, Inc. | Packaging system for a modular enclosure |
US7770337B2 (en) | 2004-03-29 | 2010-08-10 | Lifetime Products, Inc. | Modular enclosure with offset panels |
US7926227B2 (en) | 2004-03-29 | 2011-04-19 | Lifetime Products, Inc. | Modular enclosure with living hinges |
US7658038B2 (en) | 2004-03-29 | 2010-02-09 | Lifetime Products, Inc. | System and method for constructing a modular enclosure |
US7770339B2 (en) | 2004-03-29 | 2010-08-10 | Lifetime Products, Inc. | Roof system for a modular enclosure |
US7707783B2 (en) | 2005-05-11 | 2010-05-04 | Lifetime Products, Inc. | Modular enclosure |
US8020347B2 (en) | 2005-05-11 | 2011-09-20 | Lifetime Products, Inc. | Modular enclosure |
US20100225078A1 (en) * | 2006-12-01 | 2010-09-09 | Washington Savannah River Company Llc | Container for Soiled Clothing |
ES2397553T3 (en) | 2007-04-10 | 2013-03-07 | C.R.Bard, Inc. | Low power ultrasound system |
US9387556B2 (en) * | 2012-02-22 | 2016-07-12 | Custom-Pak, Inc. | Method and system for assembling blow molded panels to create cantilevered structures |
US11674302B2 (en) | 2020-02-17 | 2023-06-13 | Rubbermaid Commercial Products Llc | Modular enclosures and structures, and components thereof |
Citations (7)
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FR1491546A (en) * | 1966-07-01 | 1967-08-11 | Const Mecaniques Et Aeronautiq | Process for the manufacture of thermoplastic containers, tools for its implementation and resulting product |
US3743467A (en) * | 1970-02-19 | 1973-07-03 | A Norvaldo | Mold assembly to form a container |
US3821344A (en) * | 1972-07-18 | 1974-06-28 | Phillips Petroleum Co | Method for blow molding articles having a plurality of openings |
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Also Published As
Publication number | Publication date |
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CA2442933A1 (en) | 2002-10-10 |
AR033091A1 (en) | 2003-12-03 |
TW583067B (en) | 2004-04-11 |
US6808674B1 (en) | 2004-10-26 |
DE10296575T5 (en) | 2004-04-22 |
US20050006822A1 (en) | 2005-01-13 |
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