US20040026430A1 - Leak resistant foam hinged lid container - Google Patents
Leak resistant foam hinged lid container Download PDFInfo
- Publication number
- US20040026430A1 US20040026430A1 US10/215,331 US21533102A US2004026430A1 US 20040026430 A1 US20040026430 A1 US 20040026430A1 US 21533102 A US21533102 A US 21533102A US 2004026430 A1 US2004026430 A1 US 2004026430A1
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- US
- United States
- Prior art keywords
- lid
- base
- container
- sealing ring
- rim
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/16—Non-removable lids or covers hinged for upward or downward movement
- B65D43/162—Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/34—Trays or like shallow containers
- B65D1/36—Trays or like shallow containers with moulded compartments or partitions
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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
- B65D2251/00—Details relating to container closures
- B65D2251/02—Grip means
- B65D2251/023—Ribs or recesses
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/06—Special configurations; Closures simulating or provided with another item, e.g. puppet, animal, vehicle, building
- B65D2251/065—Special configurations; Closures simulating or provided with another item, e.g. puppet, animal, vehicle, building the external skirt having a non-circular cross-section, e.g. square, elliptical
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/10—Details of hinged closures
- B65D2251/1016—Means for locking the closure in closed position
- B65D2251/1041—The closure having a part penetrating in the dispensing aperture and retained by snapping over integral beads or projections
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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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00064—Shape of the outer periphery
- B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
- B65D2543/00129—Shape of the outer periphery having straight sides, e.g. with curved corners two straight sides and at least one curved side
-
- 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
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00296—Plastic
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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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00342—Central part of the lid
- B65D2543/00351—Dome-like
-
- 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
- B65D2543/00342—Central part of the lid
- B65D2543/00398—Reinforcing ribs in the central part of the closure
- B65D2543/00407—Reinforcing ribs in the central part of the closure radial
-
- 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
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/00509—Cup
-
- 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
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
- B65D2543/00546—NO contact
-
- 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
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
- B65D2543/0062—Groove or hollow bead
-
- 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
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00675—Periphery concerned
- B65D2543/00703—Dots
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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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00722—Profiles
- B65D2543/00759—Flange or lip
-
- 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
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00787—Periphery concerned
- B65D2543/00796—Totality
Definitions
- the present invention relates generally to hinged containers. More particularly, the invention relates to foam hinged lid containers with improved leak resistance
- Foam containers having a hinged lid have a variety of uses. The most common use is for containing food, either to package food when purchased or to hold leftovers from a purchased meal. These containers have the advantage of having insulative properties that keep food hot or cold in the containers until the food can be properly stored.
- the present invention is directed to a foam container having a base and a lid.
- the foam container includes a hinge connecting the lid to the base and an undercut closure for locking the lid to the base
- an undercut closure is preferred, a tab and slot closure can also be used which is somewhat less resistant to leakage than an undercut closure.
- the base has a first, uninterrupted sealing ring around the circumference of the base.
- the lid has a second, uninterrupted sealing ring around the circumference of the lid When the lid is closed and locked onto the base, the first sealing ring engages the second sealing ring providing a leak resistant closure.
- the lid includes ribs and chamfered corners which improves the weight to strength performance of the container
- the base includes divider walls that are engaged by the lid to prevent spillage between compartments in the base defined by the divider walls.
- the divider walls also give the base additional strength when the container is in the closed position.
- FIG. 1 is a perspective view of a leak resistant foam hinged container in an open configuration constructed in accordance with the principles of the present invention
- FIG. 2 is a perspective view of the container of the present invention in the closed configuration
- FIG. 3 is an enlarged cross-sectional view of the container taken along line 3 - 3 in FIG. 2;
- FIG. 4 is an enlarged cross-sectional view showing an undercut lock taken along line 4 - 4 in FIG. 2 of an undercut closure in the container of the present invention
- FIG. 5 is an enlarged cross-sectional view taken along line 5 - 5 in FIG. 2;
- FIG. 6 is an enlarged cross-sectional view taken along line 6 - 6 in FIG. 2.
- the container 10 includes a base 12 and a lid 14 .
- the lid 14 is connected to the base 12 by a hinge 16 allowing the lid 14 to be pivoted about the hinge 16 between a container open position (FIG. 1) and a container closed position (FIG. 2)
- the lid 14 includes a raised portion 13 that allows stacking of the containers 10 .
- the base 12 includes a bottom wall 18 and a side wall 20 around the periphery of the bottom wall 18
- the bottom wall 18 includes an indentation 19 with an upper surface that extends above the remainder 21 of the bottom wall 18 (FIG. 3).
- the upper surface of the indentation 19 functions to hold food above the remainder 21 of the bottom wall 18 and away from liquids that collect in the remainder 21 of the bottom wall 18 .
- the raised portion 13 on the lid 14 of one container fits into the underside of the indentation 19 in a base 12 of another container. This fit tends to prevent stacked containers from sliding relative to each other.
- the base 12 is intended to hold objects such as food and may include divider walls 22 of any configuration desired for its intended use.
- the divider walls 22 define separate compartments in the base 12 . Different food may be put in the separate compartments with the divider walls 22 preventing mixing of the different food and their juices.
- the divider walls 22 of this container 10 flare at their ends 22 A to define a flat surface.
- a rim 24 is provided at the top or upper end of the side wall 20 .
- the base 12 also includes a first uninterrupted sealing ring or surface 26 that extends around the entire periphery of the base 12 .
- the first uninterrupted sealing ring 26 is a flat surface suitable for providing a seal.
- a sealing bead 27 is formed along the lower edge of the first uninterrupted sealing ring 26 .
- the portion of the side wall 20 between the first sealing ring 26 and the rim 24 is designated by the reference numeral 28 and referred to as a secondary wall 28 (FIGS. 3 - 5 ). It is in this secondary wall 28 that a latch or lock is defined by forming undercuts 30 in the secondary wall 28 .
- the undercuts 30 are, in the simplest terms, pushed in sections of the secondary wall 28 as opposed to slots or cut outs such that there is no opening in the secondary wall 28 that could allow leakage
- One method of forming the undercuts 30 is described in U.S. Pat. No. 6,261,504 B1.
- the lid 14 includes a top wall 32 and a peripheral side wall 34 extending around the entire top wall 32 .
- the side wall 34 can include ribs 36 and chamfered corners 38 that improve the strength to weight performance of the container 10 .
- a peripheral rim 40 is provided on the lid 14 .
- the hinge 16 is integral with a portion of the rim 40 on the lid 14 and the rim 24 on the base 12 . In the closed container configuration (FIGS. 2 - 4 ), the lid 14 is locked onto the base 12 by the rim 40 of the lid 14 snapping under and held by the undercuts 30 in the base 12 .
- a second uninterrupted sealing ring 42 is provided on the lid 14 between the side wall 34 and the rim 40 of the lid 14 in a location below the rim 40 (see FIGS. 4 and 5) and spaced from the hinge 16 .
- the second uninterrupted sealing ring 42 is a flat surface suitable for providing a seal In the closed configuration, the second uninterrupted sealing ring 42 sealingly engages the first uninterrupted sealing ring 26 (FIGS. 3 - 5 ).
- the sealing bead 27 provides additional sealing by engaging a transition surface 44 at the lower end of the engaged first and second uninterrupted sealing rings 26 , 42 Unlike prior art containers, this seal is uninterrupted by the undercuts 30 or the hinge 16 thereby providing improved leak resistance over that provided by prior art containers.
- the lid 14 also includes a transition surface 44 between the rim 40 and the second uninterrupted sealing ring 42 .
- the transition surface 44 is flat, and in the closed container configuration the transition surface 44 sealingly engages the flat end surfaces 24 A of the divider walls 22 (FIG. 6). This engagement adds physical strength to provide stacking and top crush strength when the container 10 is in the closed position The seal between these two surfaces 44 , 22 A limits leakage between the compartments defined by the divider walls 22 .
- the lid 14 also includes indentations 46 . A user may position a finger and thumb in the indentations 46 and by squeezing, the rim 40 is moved from the undercuts in effect unlocking the lid 14 from the base 12 to open the container 10 .
Abstract
A leak resistant foam hinged lid container includes a base and a lid joined by a hinge allowing the lid to be pivoted about the hinge onto the base to close the container. The lid includes a first uninterrupted sealing ring which engages a second uninterrupted sealing ring on the base when the container is closed providing an uninterrupted leak resistant seal between the first and second sealing rings.
Description
- The present invention relates generally to hinged containers. More particularly, the invention relates to foam hinged lid containers with improved leak resistance
- Foam containers having a hinged lid have a variety of uses. The most common use is for containing food, either to package food when purchased or to hold leftovers from a purchased meal. These containers have the advantage of having insulative properties that keep food hot or cold in the containers until the food can be properly stored.
- These containers have the disadvantage, however, of leaking liquids contained in the food. Leakage occurs at the location of a hinge for the lid of the container and at a slot in the container used to lock a lid of a container to a container base. The hinge is an interruption in a seal formed between the container lid and the base, and the slot is an opening in the base. Leakage can also occur around the rim of the container where there is an incomplete seal between the container lid and base. Consequently, movement or tilting of the container can result in leakage of liquids out of the container. It is desirable to provide a hinged foam container that can be handled without leakage of liquid
- The present invention is directed to a foam container having a base and a lid. The foam container includes a hinge connecting the lid to the base and an undercut closure for locking the lid to the base Although an undercut closure, is preferred, a tab and slot closure can also be used which is somewhat less resistant to leakage than an undercut closure. The base has a first, uninterrupted sealing ring around the circumference of the base. The lid has a second, uninterrupted sealing ring around the circumference of the lid When the lid is closed and locked onto the base, the first sealing ring engages the second sealing ring providing a leak resistant closure. The lid includes ribs and chamfered corners which improves the weight to strength performance of the container The base includes divider walls that are engaged by the lid to prevent spillage between compartments in the base defined by the divider walls. The divider walls also give the base additional strength when the container is in the closed position.
- Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which
- FIG. 1 is a perspective view of a leak resistant foam hinged container in an open configuration constructed in accordance with the principles of the present invention;
- FIG. 2 is a perspective view of the container of the present invention in the closed configuration;
- FIG. 3 is an enlarged cross-sectional view of the container taken along line3-3 in FIG. 2;
- FIG. 4 is an enlarged cross-sectional view showing an undercut lock taken along line4-4 in FIG. 2 of an undercut closure in the container of the present invention;
- FIG. 5 is an enlarged cross-sectional view taken along line5-5 in FIG. 2; and
- FIG. 6 is an enlarged cross-sectional view taken along line6-6 in FIG. 2.
- Referring now to the drawings, there is illustrated a leak
resistant container 10 formed of foam material. Thecontainer 10 includes abase 12 and alid 14. Thelid 14 is connected to thebase 12 by ahinge 16 allowing thelid 14 to be pivoted about thehinge 16 between a container open position (FIG. 1) and a container closed position (FIG. 2) Thelid 14 includes a raisedportion 13 that allows stacking of thecontainers 10. - The
base 12 includes abottom wall 18 and aside wall 20 around the periphery of thebottom wall 18 Thebottom wall 18 includes anindentation 19 with an upper surface that extends above theremainder 21 of the bottom wall 18 (FIG. 3). The upper surface of theindentation 19 functions to hold food above theremainder 21 of thebottom wall 18 and away from liquids that collect in theremainder 21 of thebottom wall 18. In addition, whenseveral containers 10 are stacked on each other, the raisedportion 13 on thelid 14 of one container fits into the underside of theindentation 19 in abase 12 of another container. This fit tends to prevent stacked containers from sliding relative to each other. - The
base 12 is intended to hold objects such as food and may includedivider walls 22 of any configuration desired for its intended use. Thedivider walls 22 define separate compartments in thebase 12. Different food may be put in the separate compartments with thedivider walls 22 preventing mixing of the different food and their juices. Thedivider walls 22 of thiscontainer 10 flare at theirends 22A to define a flat surface. Arim 24 is provided at the top or upper end of theside wall 20. - The
base 12 also includes a first uninterrupted sealing ring orsurface 26 that extends around the entire periphery of thebase 12. The firstuninterrupted sealing ring 26 is a flat surface suitable for providing a seal. A sealingbead 27 is formed along the lower edge of the firstuninterrupted sealing ring 26. The portion of theside wall 20 between thefirst sealing ring 26 and therim 24 is designated by thereference numeral 28 and referred to as a secondary wall 28 (FIGS. 3-5). It is in thissecondary wall 28 that a latch or lock is defined by formingundercuts 30 in thesecondary wall 28. Theundercuts 30 are, in the simplest terms, pushed in sections of thesecondary wall 28 as opposed to slots or cut outs such that there is no opening in thesecondary wall 28 that could allow leakage One method of forming theundercuts 30 is described in U.S. Pat. No. 6,261,504 B1. - The
lid 14 includes atop wall 32 and aperipheral side wall 34 extending around the entiretop wall 32. Theside wall 34 can includeribs 36 and chamferedcorners 38 that improve the strength to weight performance of thecontainer 10. Aperipheral rim 40 is provided on thelid 14. Thehinge 16 is integral with a portion of therim 40 on thelid 14 and therim 24 on thebase 12. In the closed container configuration (FIGS. 2-4), thelid 14 is locked onto thebase 12 by therim 40 of thelid 14 snapping under and held by theundercuts 30 in thebase 12. - A second
uninterrupted sealing ring 42 is provided on thelid 14 between theside wall 34 and therim 40 of thelid 14 in a location below the rim 40 (see FIGS. 4 and 5) and spaced from thehinge 16. The seconduninterrupted sealing ring 42 is a flat surface suitable for providing a seal In the closed configuration, the seconduninterrupted sealing ring 42 sealingly engages the first uninterrupted sealing ring 26 (FIGS. 3-5). Thesealing bead 27 provides additional sealing by engaging atransition surface 44 at the lower end of the engaged first and seconduninterrupted sealing rings undercuts 30 or thehinge 16 thereby providing improved leak resistance over that provided by prior art containers. - The
lid 14 also includes atransition surface 44 between therim 40 and the seconduninterrupted sealing ring 42. Thetransition surface 44 is flat, and in the closed container configuration thetransition surface 44 sealingly engages the flat end surfaces 24A of the divider walls 22 (FIG. 6). This engagement adds physical strength to provide stacking and top crush strength when thecontainer 10 is in the closed position The seal between these twosurfaces divider walls 22. Thelid 14 also includesindentations 46. A user may position a finger and thumb in theindentations 46 and by squeezing, therim 40 is moved from the undercuts in effect unlocking thelid 14 from thebase 12 to open thecontainer 10. - While particular embodiments and applications of the present invention have been illustrated and described, it is to be understood that the invention is not limited to the precise construction and compositions disclosed herein and that various modifications, changes, and variations may be apparent from the foregoing descriptions without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (20)
1 A leak resistant hinged container, comprising:
a base,
a hinge on said base,
a lid hinged to said base by said hinge; said lid adapted to be pivoted about said hinge to engage said base upon closure of said container,
said lid including a first sealing ring,
said base including a second sealing ring, and
said first sealing ring sealingly engaging said second sealing ring upon closure of said container.
2. The container claimed in claim 1 further comprising a first rim on said lid and a second rim on said base, said first sealing ring being adjacent said first rim and extending around the circumference of said lid, said second sealing ring being adjacent said second rim and extending around the circumference of said base.
3. The container claimed in claim 1 wherein said lid includes a first rim, said first sealing ring being spaced from said first rim, said base includes a second rim, said second sealing ring being spaced from said second rim
4. The container claimed in claim 1 wherein said first sealing ring includes a first planar surface, said second sealing ring includes a second planar surface, said first planar surface adapted to engage said second planar surface upon closure of said container.
5. The container claimed in claim 1 wherein said first sealing ring is located on said lid spaced from said hinge, and said second sealing ring is located on said base spaced from said hinge
6. The container claimed in claim 1 wherein said base includes a side wall and at least one divider wall, said divider wall having a flat top surface adjacent said side wall and engaged by said lid upon closure of said container.
7. The container claimed in claim 1 , wherein said lid includes a first rim, said base includes a second rim, said second rim includes an undercut that extends over a portion of said first rim upon closure of said container to lock said lid onto said base.
8. The container claimed in claim 1 , wherein said lid includes ribs and chamfered corners.
9. A container, comprising:
a lid, and
a base,
said lid including a first continuous sealing ring extending around said lid,
said base including a second continuous sealing ring extending around said base in a location on said base to engage said first sealing ring upon closure of said lid on said base.
10. The container claimed in claim 9 further comprising a hinge connected to said lid and to said base, said first continuous sealing ring and said second continuous sealing ring being spaced from said hinge to allow an uninterrupted seal between said first and second continuous sealing rings upon closure of said lid on said base.
11. The container claimed in claim 9 wherein said first continuous sealing ring includes a first uninterrupted planar surface and said second continuous sealing ring includes a second uninterrupted planar surface located on said second continuous sealing ring to engage said first planar surface upon closure of said lid on said base
12 The container claimed in claim 9 wherein said lid includes a first rim and said base includes a second rim, said second rim includes an undercut that engages said first rim upon closure of said lid on said base to lock said lid and base together with said first continuous sealing ring engaging said second continuous sealing ring.
13. A hinged, leak resistant foam container, comprising
a base, said base having a bottom wall, a first rim on said base encompassing said bottom wall, a continuous, uninterrupted first sealing ring on said base between said bottom wall and said first rim,
a lid, said lid including a top portion, a second rim on said lid encompassing said top portion, a continuous, uninterrupted second sealing ring on said lid between said top portion and said second rim, and
a hinge coupled with said first rim and said second rim.
14. The hinged, leak resistant foam container claimed in claim 13 wherein said continuous first sealing ring includes a first planar surface and said second continuous sealing ring including a second continuous planar surface, said first planar surface engaging said second planar surface to form a continuous, uninterrupted seal upon closure of said lid onto said base.
15. The hinged, leak resistant foam container claimed in claim 13 wherein said first rim includes an undercut, said undercut in a location in said first rim to snap over said second rim upon closure of said lid onto said base.
16. The hinged, leak resistant foam container claimed in claim 13 wherein said base includes a portion of said bottom wall configured to fit onto a lid of a second said hinged, leak resistant container to stack said containers.
17. The hinged, leak resistant foam container claimed in claim 13 wherein said lid includes at least one indentation for opening said container.
18. The container claimed in claim 9 wherein said base includes a side wall and at least one divider wall, said divider wall having a flat top surface adjacent said side wall and engaged by said lid upon closure of said container
19. The container claimed in claim 9 wherein said lid includes ribs and chamfered corners.
20. The hinged, leak resistant foam container claimed in claim 13 wherein said lid includes ribs and chamfered corners
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/215,331 US20040026430A1 (en) | 2002-08-08 | 2002-08-08 | Leak resistant foam hinged lid container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/215,331 US20040026430A1 (en) | 2002-08-08 | 2002-08-08 | Leak resistant foam hinged lid container |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040026430A1 true US20040026430A1 (en) | 2004-02-12 |
Family
ID=31494846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/215,331 Abandoned US20040026430A1 (en) | 2002-08-08 | 2002-08-08 | Leak resistant foam hinged lid container |
Country Status (1)
Country | Link |
---|---|
US (1) | US20040026430A1 (en) |
Cited By (15)
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US20100308039A1 (en) * | 2009-06-08 | 2010-12-09 | 3Rd Stone Design Inc. | Food container |
JP2011073725A (en) * | 2009-09-30 | 2011-04-14 | Chuo Kagaku Co Ltd | Packaging container |
WO2015164720A1 (en) * | 2014-04-25 | 2015-10-29 | Driscoll Strawberry Associates, Inc. | Clamshell raspberry container |
US20160096663A1 (en) * | 2014-09-30 | 2016-04-07 | Ali Lotfi | Novel tamper evident containers |
WO2016135442A1 (en) * | 2015-02-23 | 2016-09-01 | Par-Pak Europe Limited | Secondary packaging for consumer products |
USD829044S1 (en) * | 2016-01-31 | 2018-09-25 | Naho Slown | Container lid having detachable compartments for use as cups |
US20190135478A1 (en) * | 2017-11-03 | 2019-05-09 | The Quaker Oats Company | Multi-Compartment Rigid Tray with Recloseable Rigid Dome Lid |
US20190163324A1 (en) * | 2014-02-12 | 2019-05-30 | Apple Inc. | Rejection of false turns of rotary inputs for electronic devices |
US20200060452A1 (en) * | 2018-08-23 | 2020-02-27 | Jordan Bradford Holley | Grooved tableware for assisting infants and children with grasping foodstuffs |
WO2020111923A1 (en) * | 2018-11-27 | 2020-06-04 | Valdes Simancas Francisco Javier | Reusable food container having an improved airtight seal system |
USD904205S1 (en) * | 2019-04-10 | 2020-12-08 | Tsing Kou Ng | Hinged food container with compartments |
US10926913B2 (en) | 2018-09-24 | 2021-02-23 | Genpak, Llc | Vented tri-fold containers |
USD914518S1 (en) * | 2019-05-29 | 2021-03-30 | Anchor Packaging, Llc | Plastic food container |
US20230182974A1 (en) * | 2021-12-09 | 2023-06-15 | World Centric | Child-resistant molded-fiber container |
USD1023744S1 (en) * | 2020-11-25 | 2024-04-23 | Michael D. Dwork | Food container |
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US20200060452A1 (en) * | 2018-08-23 | 2020-02-27 | Jordan Bradford Holley | Grooved tableware for assisting infants and children with grasping foodstuffs |
US10926913B2 (en) | 2018-09-24 | 2021-02-23 | Genpak, Llc | Vented tri-fold containers |
WO2020111923A1 (en) * | 2018-11-27 | 2020-06-04 | Valdes Simancas Francisco Javier | Reusable food container having an improved airtight seal system |
USD904205S1 (en) * | 2019-04-10 | 2020-12-08 | Tsing Kou Ng | Hinged food container with compartments |
USD914518S1 (en) * | 2019-05-29 | 2021-03-30 | Anchor Packaging, Llc | Plastic food container |
USD1023744S1 (en) * | 2020-11-25 | 2024-04-23 | Michael D. Dwork | Food container |
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Legal Events
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AS | Assignment |
Owner name: PACTIV CORPORATION, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAKER, PHILIP S.;FULLER, JOHN G.;REEL/FRAME:013180/0245;SIGNING DATES FROM 20020805 TO 20020807 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |