US20080011708A1 - Cap for a container - Google Patents
Cap for a container Download PDFInfo
- Publication number
- US20080011708A1 US20080011708A1 US11/456,654 US45665406A US2008011708A1 US 20080011708 A1 US20080011708 A1 US 20080011708A1 US 45665406 A US45665406 A US 45665406A US 2008011708 A1 US2008011708 A1 US 2008011708A1
- Authority
- US
- United States
- Prior art keywords
- cap
- container
- well
- cap assembly
- filter
- 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
-
- 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
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
- B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter
Definitions
- Containers that hold liquids are well known in the industry. Some of these containers are also used as reservoirs to hold liquids that are siphoned or suctioned out at various speeds or that use gravity to dispense the liquid. To maintain the flow of liquid, vent holes must be present. The vent holes allow outside air pressure to enter into the container preventing a negative pressure inside the container. The present invention uses a cap designed to prevent any liquid from escaping or leaking as well as permitting the container to breathe and receive air to balance the pressures and allow the flow of liquid.
- the cap assembly for a container used for holding a liquid that is removed from the container.
- the cap assembly includes a cap defined as having a roof portion, a cylindrical skirt depending from an outer periphery defined by the roof portion, and a well extending from the roof portion into the cap.
- the well has a wall terminating at a base structure.
- the base structure has an aperture that is sized smaller than the well.
- the cap assembly includes a filter sized to frictionally fit into the well section.
- the filter is air permeable and liquid impermeable such that liquid within the container does not leak through the filter and air may pass through the filter into the container to aid in equalizing the pressures within and outside of the container.
- the cap assembly may also include a seal having an opening sized to fit over the well and having a diameter substantially matching the internal diameter of the cap such that an outer periphery of the seal abuts an internal wall defined about the cylindrical skirt.
- the filter may be made from a sintered plastic material.
- the cap may include a shoulder region defined between the roof portion and the skirt portion such that the outer periphery of the seal abuts an internal wall defined by the shoulder region.
- the cap may also include crenellated indentations defined on the skirt.
- FIG. 1 is a perspective view of a cap assembly in accordance with an embodiment of the present invention
- FIG. 2 is a cross sectional view of the cap from FIG. 1 ;
- FIG. 3 is a perspective view of the cap assembly from FIG. 1 showing the partial insertion of a filter
- FIG. 4 is a cross sectional view of FIG. 3 ;
- FIG. 5 is a perspective view of the cap assembly from FIG. 1 after the components are assembled together;
- FIG. 6 is a cross sectional view of FIG. 5 ;
- FIG. 7 is a perspective view of the cap assembly from FIG. 1 being placed on a container;
- FIGS. 8A and 8B illustrated another type of filter that may also be used in the cap assembly.
- FIGS. 9A and 9B illustrated another type of filter that may also be used in the cap assembly.
- FIGS. 1 through 7 there is shown in accordance to an embodiment a cap assembly 100 for sealing a container 250 or reservoir that is holding a liquid.
- the liquid may be siphoned or suctioned out of the container 250 or the liquid may flow out of the container 250 by a gravity feed system through a tube 255 .
- the container 250 needs to be vented to prevent a negative pressure inside the container and to maintain the flow of liquid therefrom.
- the cap assembly 100 helps prevent these shortcomings by allowing air to enter the container. At the same time, the cap prevents any liquid within the container from leaking therefrom by maintaining a liquid impermeable seal.
- the cap assembly 100 includes a cap 110 , a filter 200 , and a seal 210 .
- the cap 110 has an annular roof portion 115 that extends to a shoulder region 120 . Extending downwardly from the shoulder region 120 is a annular skirt portion 125 . The skirt portion 125 terminates at a flanged section 130 .
- crenellated indentations 135 are provided around the skirt portion 125 . The crenellated indentations 135 help in gripping when twisting the cap 110 off of a container.
- the cap 110 preferably includes twelve crenellated indentations 135 positioned uniformly around the circumference of the cap.
- the top portion 115 includes a centered well 150 .
- the well 150 is defined as having a shoulder region 155 extending from the top portion 115 into the well 150 .
- the shoulder region 155 may be a tapered edge, as illustrated, or may be a more abrupt change.
- a well wall 160 extends from the shoulder region 155 to a base 162 creating the well within an interior 170 of the cap 110 .
- the base 160 has an aperture 165 positioned therethrough.
- the aperture 165 is typically smaller than the well such that the filter 200 cannot be pushed into the container.
- the interior 170 of the cap 110 would have a first thread region 175 to provide a means to secure the cap 110 onto a corresponding second thread region 255 on the container 250 .
- Other securing means may be provided such as corresponding beads on the cap and container for a snap-fit arrangement. When secured, the cap 110 will close or fit over an orifice 260 defined by a neck 262 on the container 250 .
- the filter 200 is typically cylindrically shaped and sized to frictionally slide into the well 150 (illustrated in FIGS. 3 and 4 ).
- the filter 200 can be a sintered plastic that allows air to pass through, but not the liquid.
- Other filters that can be utilized will be apparent to those skilled in the art.
- the filter 200 is preferably an air permeable and a liquid impermeable filter.
- the seal 210 is typically a rubber o-ring that includes an aperture 215 and an outer periphery 220 that is sized to substantially match an internal periphery of the cap.
- the aperture 215 is sized to fit over the outer wall 180 of the well 150 .
- the outer periphery 220 abuts the internal periphery of the cap or the internal periphery of the shoulder region.
- FIGS. 8A and 8B there is shown in another embodiment a different type of filter used in the well 150 .
- a filter 300 is shown to have a centered member 305 extending through the aperture 165 .
- the centered member 305 may include a nub 310 which when the filter is inserted is placed in the interior of the well.
- the top portion 315 of the filter 300 is flexible allowing air to push or flex the top portion 315 downwardly allowing air to enter. Additional apertures or air channels 320 are provided to allow the air to flex the top portion 315 .
- This filter 300 may be used in connection with the sintered plastic (air permeable and liquid impermeable) filter shown in FIG. 1 .
- FIGS. 9A and 9B there is shown in another embodiment a different type of filter 350 used in the well 150 .
- the filter 350 is a flexible end 355 that opens and closes to allow air to enter the container.
- This filter 350 may be used in connection with the sintered plastic (air permeable and liquid impermeable) filter shown in FIG. 1 .
Abstract
A cap assembly for a container used for holding a liquid that is removed from the container, the cap assembly includes: a cap having a roof portion, a cylindrical skirt depending from an outer periphery defined by the roof portion, and a well extending from the roof portion into the cap. The well further has a wall terminating at a base structure, and the base structure has an aperture that is sized smaller than the well. The cap assembly also includes a filter sized to frictionally fit into the well section and the filter is air permeable and liquid impermeable. The cap assembly also includes a seal that has an opening sized to fit over the well and has a diameter substantially matching the internal diameter of the.
Description
- Containers that hold liquids are well known in the industry. Some of these containers are also used as reservoirs to hold liquids that are siphoned or suctioned out at various speeds or that use gravity to dispense the liquid. To maintain the flow of liquid, vent holes must be present. The vent holes allow outside air pressure to enter into the container preventing a negative pressure inside the container. The present invention uses a cap designed to prevent any liquid from escaping or leaking as well as permitting the container to breathe and receive air to balance the pressures and allow the flow of liquid.
- There is herein described a cap assembly for a container used for holding a liquid that is removed from the container. The cap assembly includes a cap defined as having a roof portion, a cylindrical skirt depending from an outer periphery defined by the roof portion, and a well extending from the roof portion into the cap. The well has a wall terminating at a base structure. The base structure has an aperture that is sized smaller than the well. The cap assembly includes a filter sized to frictionally fit into the well section. The filter is air permeable and liquid impermeable such that liquid within the container does not leak through the filter and air may pass through the filter into the container to aid in equalizing the pressures within and outside of the container. The cap assembly may also include a seal having an opening sized to fit over the well and having a diameter substantially matching the internal diameter of the cap such that an outer periphery of the seal abuts an internal wall defined about the cylindrical skirt. The filter may be made from a sintered plastic material. In other embodiments, the cap may include a shoulder region defined between the roof portion and the skirt portion such that the outer periphery of the seal abuts an internal wall defined by the shoulder region. The cap may also include crenellated indentations defined on the skirt.
- Numerous other advantages and features of the invention will become readily apparent from the following detailed description of the invention and the embodiments thereof, from the claims, and from the accompanying drawings.
- A fuller understanding of the foregoing may be had by reference to the accompanying drawings, wherein:
-
FIG. 1 is a perspective view of a cap assembly in accordance with an embodiment of the present invention; -
FIG. 2 is a cross sectional view of the cap fromFIG. 1 ; -
FIG. 3 is a perspective view of the cap assembly fromFIG. 1 showing the partial insertion of a filter; -
FIG. 4 is a cross sectional view ofFIG. 3 ; -
FIG. 5 is a perspective view of the cap assembly fromFIG. 1 after the components are assembled together; -
FIG. 6 is a cross sectional view ofFIG. 5 ; -
FIG. 7 is a perspective view of the cap assembly fromFIG. 1 being placed on a container; -
FIGS. 8A and 8B illustrated another type of filter that may also be used in the cap assembly; and -
FIGS. 9A and 9B illustrated another type of filter that may also be used in the cap assembly. - While the invention is susceptible to embodiments in many different forms, there are shown in the drawings and will be described herein, in detail, the preferred embodiments of the present invention. It should be understood, however, that the present disclosure is to be considered an exemplification of the principles of the invention and is not intended to limit the spirit or scope of the invention and/or claims of the embodiments illustrated.
- Referring now to
FIGS. 1 through 7 there is shown in accordance to an embodiment acap assembly 100 for sealing acontainer 250 or reservoir that is holding a liquid. The liquid may be siphoned or suctioned out of thecontainer 250 or the liquid may flow out of thecontainer 250 by a gravity feed system through atube 255. In any event, thecontainer 250 needs to be vented to prevent a negative pressure inside the container and to maintain the flow of liquid therefrom. Thecap assembly 100 helps prevent these shortcomings by allowing air to enter the container. At the same time, the cap prevents any liquid within the container from leaking therefrom by maintaining a liquid impermeable seal. - The
cap assembly 100 includes acap 110, afilter 200, and aseal 210. Thecap 110 has anannular roof portion 115 that extends to ashoulder region 120. Extending downwardly from theshoulder region 120 is aannular skirt portion 125. Theskirt portion 125 terminates at aflanged section 130. In addition, crenellatedindentations 135 are provided around theskirt portion 125. Thecrenellated indentations 135 help in gripping when twisting thecap 110 off of a container. Thecap 110 preferably includes twelvecrenellated indentations 135 positioned uniformly around the circumference of the cap. - The
top portion 115 includes acentered well 150. Thewell 150 is defined as having ashoulder region 155 extending from thetop portion 115 into thewell 150. Theshoulder region 155 may be a tapered edge, as illustrated, or may be a more abrupt change. Awell wall 160 extends from theshoulder region 155 to abase 162 creating the well within aninterior 170 of thecap 110. Thebase 160 has anaperture 165 positioned therethrough. Theaperture 165 is typically smaller than the well such that thefilter 200 cannot be pushed into the container. - The
interior 170 of thecap 110 would have afirst thread region 175 to provide a means to secure thecap 110 onto a correspondingsecond thread region 255 on thecontainer 250. Other securing means may be provided such as corresponding beads on the cap and container for a snap-fit arrangement. When secured, thecap 110 will close or fit over anorifice 260 defined by aneck 262 on thecontainer 250. - The
filter 200 is typically cylindrically shaped and sized to frictionally slide into the well 150 (illustrated inFIGS. 3 and 4 ). Thefilter 200 can be a sintered plastic that allows air to pass through, but not the liquid. Other filters that can be utilized will be apparent to those skilled in the art. In any event, thefilter 200 is preferably an air permeable and a liquid impermeable filter. - As shown in
FIGS. 1 , 5, and 6, theseal 210 is typically a rubber o-ring that includes anaperture 215 and anouter periphery 220 that is sized to substantially match an internal periphery of the cap. Theaperture 215 is sized to fit over theouter wall 180 of the well 150. When theseal 210 is placed over thewell 150, theouter periphery 220 abuts the internal periphery of the cap or the internal periphery of the shoulder region. - Referring now to
FIGS. 8A and 8B there is shown in another embodiment a different type of filter used in thewell 150. As illustrated afilter 300 is shown to have acentered member 305 extending through theaperture 165. The centeredmember 305 may include anub 310 which when the filter is inserted is placed in the interior of the well. Thetop portion 315 of thefilter 300 is flexible allowing air to push or flex thetop portion 315 downwardly allowing air to enter. Additional apertures orair channels 320 are provided to allow the air to flex thetop portion 315. Thisfilter 300 may be used in connection with the sintered plastic (air permeable and liquid impermeable) filter shown inFIG. 1 . - Referring now to
FIGS. 9A and 9B there is shown in another embodiment a different type offilter 350 used in thewell 150. Thefilter 350 is aflexible end 355 that opens and closes to allow air to enter the container. Thisfilter 350 may be used in connection with the sintered plastic (air permeable and liquid impermeable) filter shown inFIG. 1 . - It should be further stated the specific information shown in the drawings but not specifically mentioned above may be ascertained and read into the specification by virtue of a simple study of the drawings. Moreover, the invention is also not necessarily limited by the drawings or the specification as structural and functional equivalents may be contemplated and incorporated into the invention without departing from the spirit and scope of the novel concept of the invention. It is to be understood that no limitation with respect to the specific embodiments illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.
Claims (10)
1. A cap assembly for a container used for holding a liquid that is removed therefrom, said cap assembly comprising:
a cap defined as having a roof portion, a cylindrical skirt depending from an outer periphery defined by the roof portion, and a well extending from said roof portion into said cap, the well having a wall terminating at a base structure, said base structure having an aperture that is sized smaller than said well; and
a filter sized to frictionally fit into said well section and having a material characteristic of being air permeable and liquid impermeable such that liquid contained within said container is prevented from leaking and air may pass through said filter into the container.
2. The cap assembly of claim 1 further comprising a seal having an opening sized to fit over said well and having a diameter substantially matching the internal diameter of said cap such that an outer periphery of said seal abuts an internal wall defined about the cylindrical skirt.
3. The cap assembly of claim 1 , wherein the filter is made from a sintered plastic material.
4. The cap assembly of claim 2 , wherein the cap further includes a shoulder region defined between said roof portion and said skirt portion and wherein said outer periphery of said seal abuts an internal wall defined by the shoulder region.
5. The cap assembly of claim 1 , wherein the cap further includes crenellated indentations defined on the skirt.
6. A cap assembly for use with a container holding a liquid that is removed therefrom:
said container comprising:
a neck portion surrounding an orifice, a thread positioned about the neck, a tube in fluid communication with said container, such that liquid contained therein flows through the tube when a pressure within the container substantially equals atmospheric pressure; and
said cap assembly comprising:
a cap defined as having a roof portion, a cylindrical skirt depending from an outer periphery defined by the roof portion, and a well extending from said roof portion into said cap, the well having a wall terminating at a base structure, said base structure having an aperture that is sized smaller than said well, a filter sized to frictionally fit into said well section and having a material characteristic of being air permeable and liquid impermeable such that liquid contained within said container is prevented from leaking and air may pass through said filter into the container, and a corresponding thread positioned on an internal region of said cylindrical skirt to mate with said thread on said neck,
whereby air passes through said filter into said container to substantially equalize the pressure within the container and permit the fluid within the container to flow through said tube.
7. The cap assembly of claim 6 further comprising a seal having an opening sized to fit over said well and having a diameter substantially matching the internal diameter of said cap such that an outer periphery of said seal abuts an internal wall defined about the cylindrical skirt.
8. The cap assembly of claim 6 , wherein the filter is made from a sintered plastic material.
9. The cap assembly of claim 6 , wherein the cap further includes a shoulder region defined between said roof portion and said skirt portion and wherein said outer periphery of said seal abuts an internal wall defined by the shoulder region.
10. The cap assembly of claim 6 , wherein the cap further includes crenellated indentations defined on the skirt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/456,654 US20080011708A1 (en) | 2006-07-11 | 2006-07-11 | Cap for a container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/456,654 US20080011708A1 (en) | 2006-07-11 | 2006-07-11 | Cap for a container |
Publications (1)
Publication Number | Publication Date |
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US20080011708A1 true US20080011708A1 (en) | 2008-01-17 |
Family
ID=38948190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/456,654 Abandoned US20080011708A1 (en) | 2006-07-11 | 2006-07-11 | Cap for a container |
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US (1) | US20080011708A1 (en) |
Cited By (9)
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US20070029407A1 (en) * | 2004-08-24 | 2007-02-08 | Roll, Llc | Nozzle assembly |
US20090104033A1 (en) * | 2007-01-24 | 2009-04-23 | Roll, Llc | Apparatus and method for distributing a fluid |
US7699245B1 (en) | 2004-08-24 | 2010-04-20 | Roll, Llc | Nozzle spray assembly III |
US20100175850A1 (en) * | 2009-01-09 | 2010-07-15 | Kaucic Edward M | Relief Vent for a Hot Fill Fluid Container |
US20110186536A1 (en) * | 2010-01-29 | 2011-08-04 | Graham Packaging Company, L.P. | Pressure equalizing closure |
US20140027403A1 (en) * | 2006-12-20 | 2014-01-30 | Playtex Products, Llc | Vent valve assemblies for baby bottles |
US8991643B2 (en) | 2011-03-29 | 2015-03-31 | Graham Packaging Company, L.P. | Closure for use in hotfill and pasteurization applications |
GB2519205A (en) * | 2013-08-16 | 2015-04-15 | Mwv Slatersville Llc | Two-piece child-resistant dispensing closure |
US11001425B2 (en) * | 2017-02-07 | 2021-05-11 | Gizmo Packaging Limited | Apparatus for introducing an additive to a carbonated liquid |
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Owner name: ROLL, LLC, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RAPPIN, CRAIG;REEL/FRAME:017910/0512 Effective date: 20060711 |
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