CA2565256A1 - Enhanced tamper evident bowl with blocked tab - Google Patents

Enhanced tamper evident bowl with blocked tab Download PDF

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Publication number
CA2565256A1
CA2565256A1 CA002565256A CA2565256A CA2565256A1 CA 2565256 A1 CA2565256 A1 CA 2565256A1 CA 002565256 A CA002565256 A CA 002565256A CA 2565256 A CA2565256 A CA 2565256A CA 2565256 A1 CA2565256 A1 CA 2565256A1
Authority
CA
Canada
Prior art keywords
base
lid
wall
trapping
pull
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.)
Granted
Application number
CA002565256A
Other languages
French (fr)
Other versions
CA2565256C (en
Inventor
Terry Vovan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PWP Industries Inc
Original Assignee
PWP Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PWP Industries Inc filed Critical PWP Industries Inc
Publication of CA2565256A1 publication Critical patent/CA2565256A1/en
Application granted granted Critical
Publication of CA2565256C publication Critical patent/CA2565256C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0235—Removable lids or covers with integral tamper element
    • 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
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/021—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the inside, or a part turned to the inside, of the 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
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/10—Tearable part of the container
    • 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
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • 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
    • B65D2543/0037—Flexible or deformable
    • 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
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00731—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
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality
    • 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
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid

Abstract

A container which includes a base (12) that can hold food and a lid (14) that closes on the base, which clearly indicates if the lid has been opened after a clerk loaded food into the base and closed the lid. The base and lid each have trapping portions (20, 22) and pull-open portions (24, 32) with a tear- tab, or tear-open barrier (80). To close the lid, a clerk projects a tab (30) on the pull-open portion of the lid through a slot (26) in the pull-open portion of the base, and then presses down the entire trapping portion of the lid into the trapping portion of the base. The lid cannot be lifted up because the tear- open barrier (80) forming the top wall of the slot lies over the tab. To open the container, a person must tear the barrier so he/she can pull up the tab 30 a nd open the lid. The fact that the barrier has been torn is obvious.

Claims (15)

1. A container having a base (12, 132, 152) and lid (14, 134, 154, 162) formed of plastic, wherein:
said base and lid are centered on a vertical axis (34) and said base and lid each has a trapping section (20, 22) and a pull-open section (24, 32), said trapping section of said base has a trapping wall (54) that allows the trapping section (22) of the lid to be pushed down to an installed position and then resists the trapping section of the lid from being pulled up;
said pull-open section (24) of said base forms a slot (26, 138) and forms a barrier wall (80) at the top of said slot, said base having a major portion (94) that includes said trapping section and said base including circumferentially spaced opposite sides (110) of said base pull-open section;
said pull-open section of said lid has a pull tab (30, 137) that lies in said slot under said barrier wall and that cannot be pulled up without removing said barrier wall from a location directly above said pull tab;
said barrier wall joined to said major portion (94) of said base by at least one breakable joint (90, 92), and removal of the barrier wall (80) from above said pull tab requires breaking said joint.
2. The container described in claim 1 wherein:
said trapping wall (54) of said base trapping section has an inside surface (55) that extends at a downward and radially outward incline with respect to said axis (34), and said trapping section of said base has a stop wall (56) at the bottom of said trapping wall, the intersection of the bottom of said trapping wall inside surface and said stop wall (56) forming an inside corner (64);
said trapping section of said lid has a peripheral lip (70) that lies against said inside corner.
3. The container described in claim 2 wherein:
said base has a base upper seal wall (60) that extends 360 ° around said axis and that extends at a downward-inward incline from an inner end of said stop wall, said base upper seal wall having a concave inner surface (62);
said lid has a lid upper seal wall (72) with a convex outer surface (73) that lies facewise against said concave inner surface of said base upper seal wall.
4. The container described in claim 3 wherein:
said base forms a base corner (64) at an intersection of said inner end of said stop wall (56) and a top of said upper seal wall (60), and said lid forms a lid corner (75) at an intersection of said peripheral lip (70) and a top of said lid upper seal wall (72), said lid corner (75) having an inside surface with at least 150% of the radius of curvature of an inside surface of said base corner (64).
5. The container described in claim 1 wherein:
said base has an upper radially outer edge part (50), and has a flange portion (52) lying radially inside said outer edge part, said flange portion having a primarily horizontally extending flange top (120) lying above said outer edge part, and said flange portion having a primarily vertical flange outer wall (122) extending down from an outer side of said top and having a primarily vertical flange inner wall (124) extending down from an inner side of said flange down to the top of said trapping wall;
said flange portion being interrupted at said pull-open side of said base so at said pull-open section the top of said base forms a horizontal wall (113) of radial width at least equal to the radial width of said radially outer lip and forms said barrier wall (80).
6. The container described in claim 1 wherein:
said trapping section extends by an angle (A) of at least 300° about said axis.
7. The container described in claim 1 wherein:
said container (130) has the shape of a regular polygon with a plurality of sides (144, 146), as viewed in a plan view, and said barrier wall has opposite ends that each forms one of said breakable joints, said joints (140, 142) each extending a plurality of degrees less than 90 to an adjacent one of said sides (144, 146).
8. The container described in claim 1 wherein:
said base and lid are joined by a hinge (160) lying at a side of the axis (34) that is opposite said pull-open sections (24, 32).
9. A container that includes a base (12, 132, 152) and a lid (14, 134, 154, 162), formed of deformed sheet plastic, wherein:
said base and lid are centered on a vertical axis (34) and most of said lid fits into said base, said base and lid each has a trapping section (20, 22) that extends more than 180 about said axis and a pull-open section (24, 32) that extends less than 180 about said axis;
along said trapping section, said base has a trapping wall (54) that extends at a downward and radially outward incline, and said base has a stop wall (56) that extends inwardly from a bottom of said trapping wall;
along said trapping section said lid has a radially outer peripheral lip (70) that rests inside said trapping wall at the intersection (58) of said trapping wall and said stop wall;
at said pull-open section, said base has slot walls that form a slot (26) that is open to radial insertion of a tab therein, said slot walls including an upper slot wall (80);
at said pull-open section, said lid forms a radially-outward projecting pull tab (30) that extends through said slot;
said upper slot wall has circumferentially opposite ends (90, 92) that are constructed so at least one of them can be manually broken so said pull tab can be pulled up.
10. The container described in claim 9 wherein:
said pull tab has a horizontal upper surface with an opening therein (78), and said pull tab has largely vertical stiffeners (77) extending downward from edge portions of said opening.
11. The container described in claim 9 wherein:
along said trapping section said base has a top with an outer edge part (50), and with a flange portion (52) lying radially inside said outer flange part and having a primarily horizontally-extending flange top (120) and having inner and outer primarily vertically-extending flange walls (122, 124), said inner flange wall merging with said flange top;
at intersections of said trapping region and said pull-open region, the top of said base is devoid of said flange and forms a radially wide flat wall portion (113).
12. The container described in claim 9 wherein:
said base and lid are joined by a hinge (160) lying on a side of said axis which is opposite said pull-open sections of said base and lid.
13. A method for assembling a container that has a vertical axis (34) and that includes a base (12, 132, 152) and a lid (14, 134, 154, 162), wherein the base and lid have pull-open and trapping sections (24, 32, 20, 22) wherein the lid trapping section can be pressed down to a locked position in the base trapping section, and said base pull-open section is formed with a radially-opening slot (26) and with a primarily horizontal and removable barrier (80) above the slot, and said lid pull-out section is formed with a radially-outwardly extending tab (30, 137), comprising:
installing said lid on said base by holding said lid at an incline (C) over said base, so said lid pull-out section is lowermost, inserting said tab (30) through said slot, and then pressing down said trapping portion of said lid until it is locked on said trapping portion of said base.
14. The method described in claim 13 wherein said trapping sections of said base and lid are constructed so the trapping section of the lid can be pulled out of the base when the lid is inclined (D) at more than 150 to said base with said pull-out section uppermost, and including opening said container, comprising:
removing said barrier from above said tab, pulling up said tab to tilt said lid by at least 15° to the horizontal, and removing the lid.
15. The method described in claim 13 including:
pivotally connecting the base and lid by a hinge (160) at a location on a first side of a vertical axis (34) that extends through a center of the closed container, wherein said first side is opposite said base and lid pull-out sections in the assembled container;
said step of installing the lid includes bending the lid so said first side of said hinge extends at an upward incline away from said hinge, and so the lid side at said lid pull-out section extends at a downward incline away from said hinge.
CA2565256A 2005-12-21 2006-10-23 Enhanced tamper evident bowl with blocked tab Expired - Fee Related CA2565256C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/315,654 2005-12-21
US11/315,654 US8833589B2 (en) 2005-12-21 2005-12-21 Enhanced tamper evident bowl with blocked tab

Publications (2)

Publication Number Publication Date
CA2565256A1 true CA2565256A1 (en) 2007-06-21
CA2565256C CA2565256C (en) 2012-02-07

Family

ID=37846091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2565256A Expired - Fee Related CA2565256C (en) 2005-12-21 2006-10-23 Enhanced tamper evident bowl with blocked tab

Country Status (5)

Country Link
US (4) US8833589B2 (en)
EP (1) EP1801026A1 (en)
AU (1) AU2006236067B2 (en)
CA (1) CA2565256C (en)
MX (1) MXPA06013097A (en)

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US20080006632A1 (en) 2008-01-10
CA2565256C (en) 2012-02-07
US20150060456A1 (en) 2015-03-05
US20080000904A1 (en) 2008-01-03
US20070138180A1 (en) 2007-06-21
MXPA06013097A (en) 2007-06-20
US8833589B2 (en) 2014-09-16
AU2006236067B2 (en) 2009-10-08
US8123064B2 (en) 2012-02-28
US9708106B2 (en) 2017-07-18
AU2006236067A1 (en) 2007-07-05
US8056750B2 (en) 2011-11-15
EP1801026A1 (en) 2007-06-27

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