US3568916A - Locking mechanisms for egg cartons - Google Patents

Locking mechanisms for egg cartons Download PDF

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Publication number
US3568916A
US3568916A US3568916DA US3568916A US 3568916 A US3568916 A US 3568916A US 3568916D A US3568916D A US 3568916DA US 3568916 A US3568916 A US 3568916A
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Grant
Patent type
Prior art keywords
carton
locking
flange
sections
bottom
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.)
Expired - Lifetime
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Inventor
George R Scheuring
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.)
Atlantic Richfield Co
Sinclair Koppers Co
Original Assignee
Sinclair Koppers Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/14Non-removable lids or covers
    • B65D43/16Non-removable lids or covers hinged for upward or downward movement
    • B65D43/162Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324Containers with compartments made of pressed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2251/00Details relating to container closures
    • B65D2251/10Details of hinged closures
    • B65D2251/1016Means for locking the closure in closed position
    • B65D2251/105The closure having a part fitting over the rim of the container or spout and retained by snapping over integral beads or projections

Abstract

Locking mechanisms for egg cartons having an integrally hinged tray and cover. The locking mechanism includes a locking flange that extends inwardly from the bottom of the cover''s front wall and engages the underside of a protruding lip on the carton''s tray when the carton is closed, and a depending flange that extends downwardly and outwardly from the inner edge of the locking flange to flex the locking flange over the protruding lip and into locking position as the tray and cover are moved into closed position.

Description

United States Patent [72] Inventor George R. Scheul'ing 3,258,186 6/1966 Greatman 229/2.5 Pittsburgh, Pa. 3,258,187 6/1966 Greatman 229/2.5 [21] App]. No. 813,616 3,298,594 1/1967 Makowski et al..... 229/45 [22] Filed Apr. 4,1969 3,396,895 8/1968 Pearl et al 229/2.5 [45] g f 1x971 C Primary Examiner-Davis T. Moot-head [73] ss'gnee a uppers ompany Attorney-Finnegan, Henderson and Farabow Pittsburgh, Pa.

[54] LOCKING MECHANISMS FOR EGG CARTONS 9 Claims, 7 Drawing Figs. [52] [1.5. CI 229/45, ABSTRACT: Locking mechanisms for egg canons having an 229/2-5 integrally hinged tray and cover. The locking mechanism in- [51] Int. Cl B65d45/00 cludes a locking flange that extends inwardly from the bottom Fleld 44, of the covers front wall and engages the underside of a 29 (M), 45 protruding lip on the cartonstray when the carton is closed,

and a depending flange that extends downwardly and out- [56] References cued wardly from the inner edge of the locking flange to flex the UNITED STATES PATENTS locking flange over the protruding llip and into locking posi- 3,398,875 8/1968 Snow et al. 229/2.5 tion as the tray and cover are moved into closed position.

PATENTEDMAR slsm 3,668,916

sum 1 UF 2 INVEN'IOR GEORGE R. SCHEURING A'I'TURNI'IYS Emegan, fivzdmson (gzjajza ow SHEET 2 OF 2 PATENTED m 9 I97! mvmvmn GEORGE R. SCHEURING iii/Ryan, j'fendzsolz' Qjagow v A'I'TUHNEYS LOCKMG MECHANISMS FOR EGG CARTONS This invention relates to packaging cartons, and more particularly to new and improved locking mechanisms for molded egg cartons.

Molded cartons with various types of integrally molded locking mechanisms have been provided in the past for the packaging of eggs. Exemplary of one widely used type of locking mechanism provides a pair of lugs on the outer surface of a locking flap hingedly connected to the bottom tray of the carton that are matable with and extend through corresponding apertures in the front wall of the cartons lid to lock the lid to the tray.

Cartons utilizing this. type of locking mechanism, however, have generally proven unsatisfactory to housewives and other users, because they are difficult to open and close. The luglocking principle requires flexing of the cartons walls by the user during opening and closing to free the lugs from the apertures. Due to the inherent stiffness of the material used in the manufacture of such cartons, however, and the outward pressure of the packaged articles, it is difficult for the user to flex the structure sufficiently to allow clearance for easy opening and closing. Such difficulties, of course, are not only inconvenient to the user but render the carton and the packaged articles prone to be damaged during repeated opening and closing of the carton.

In accordance with the present invention, new and improved locking mechanisms are provided for a packaging carton in which the carton comprises a bottom section having a front wall and a rear wall; a cover section having a front wall and a rear wall; and a hinged connection between the cover and bottom sections rear walls so that the cover can assume a closed-superimposed position with respect to the bottom sectron.

Interlocking means are provided on the front walls of the cover and bottom sections for releasably holding the carton closed. The interlocking means includes a longitudinal locking lip integral with and extending along at least a portion of the length of the top of the bottom sections front wall; a locking flange integral with and extending'inwardly from and along a portion of the length of the bottom of the cover sections front wall adjacent the locking lip, the locking flange engaging the underside of the locking lip when the carton is closed to hold the sections together; and a depending flange integral with and extending downwardly and outwardly from the inner edge of the locking lip as the sections are moved into a closed position to flex the locking flange over the lip and into locking position.

Preferably, the packaging carton is an egg carton, and the carton and interlocking means are of unitary molded construction.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory but are not restrictive of the invention.

The accompanying drawings which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention.

Of the drawings:

FIG. 1 is a fragmentary perspective view of the front of an egg carton in a partially open position and showing the locking mechanism of one embodiment of this invention;

FIG. 2 is a broken view in vertical section of the egg carton of FIG. I in an open position;

FIG. 3 is similar to FIG. 2 and shows a modification of the front wall of the cartons lid;

, FIG. 4 is a fragmentary and enlarged view in vertical section of the front of the carton in FIG. l in a closed position;

FIG. 5 is a fragmentary perspective view of the front of an egg carton in a partially open position and showing another embodiment of the locking mechanism of this invention;

FIG. 6 is a broken view in vertical section of the egg carton of FIG. 5 in an open position; and

FIG. 7 is a fragmentary and enlarged view in vertical section of the front of the carton of FIG. 5 in a closed position.

Reference will now be made in detail to present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

The packaging cartons illustrated in the drawings and contemplated for use withlocking mechanisms of this invention are egg cartons having a cover section or lid 10 and a bottom section or tray 12. The cover and bottom sections rear walls 14 and 16, respectively, are hingedly connected by an integral web 18. Bottom section 12 has a plurality of egg-accomodating cells arranged in parallel rows. While the number and rows of cells may vary, the bottom section preferably consists of a dozen cells arranged in two parallel rows of six cells each.

A wide variety of materials may be used in the manufacture of the carton structures illustrated in the drawings. Molded paper pulp, pasteboard, plastic and the like, for example, may be used. A preferred material, however, is thermoplastic foam, such as, for example, foam polystyrene, or other polymers, such as polyethylene, polypropylene, polyvinylchloride, and the like.' For purposes of illustration and as preferred embodiments, the drawings show egg cartons and locking mechanisms for the cartonsof unitary construction produced by vacuum molding or match-molding techniques from a sheet of polystyrene foam.

In accordance with the invention, interlocking means are provided on the front walls of the cover and bottom sections for releasably holding the carton closed. The relationship between the interlocking rneans and the top and bottom sections of the carton, .as shown in the drawings, will be used in the specification and claims for, clarity, but it is to be understood that the interlocking means may be reversed with I respect to the cartons sections without departing from the scope of this invention.

As embodied, the interlocking means includes a longitudinal locking lip 22 integral with and extending along at least a portion of the length of the top of bottom sections front wall 24, and a substantially horizontal locking flange 26 integral with and extending inwardly from and along a portion of the length of the bottom of the cover sections front wall 28 adjacent locking lip 22. The upper surface 30 of locking flange 26 engages the underside 32 of locking lip 22 when the carton is closed to lock the bottom and cover sections together.

A depending flange 34 integral with locking flange 26 extends downwardly and outwardly fromJthe inner edge 36 of the locking flange to assist in the locking and unlocking of the locking mechanisms.

During closing of the cartons, the inner surface 38 of depending flange 34 engages the locking lip 22 and flexes locking flange 26 outwardly over the outer edge 40 of lip 22 until the flange is free to snap back into engagement with the underside of locking lip 22.

To open the container, the fingers are inserted between the bottom section's front wall 24 and depending flange 34, and the flange is pulled upwardly and outwardly to pull locking flange 26 out of engagement and over the outer edge 40 of locking lip 22.

As best shown in FIG. 1, there is provided an outwardly and laterally extending flange 42 that extends around the bottom of the cover sections rear wall, its sidewalls, and a portion of its front wall, and a corresponding flange 44 on the top of the bottom sections walls, the flanges 42 and 44 being in substantial flush load-bearing engagement when the carton is closed.

In accordance with one embodiment of this invention, and as shown in FIGS. 1--4, locking lip 22 and locking flange 26 of the interlocking means extend substantially along the entire front walls of the bottom and top sections. As best shown in FIG, 1, a portion of the bottom sections flange 44 is raised along the bottom sections front wall 24 intermediate its ends, and forms locking lip 22 of the interlocking means. Further, a portion of the cover sections flange 42 extends downwardly and outwardly along the sections front wall 28 and forms the leading edge 46 of the depending flange 34 of the interlocking means.

Thus, the upper surface 30 of locking flange 26 in this embodiment is above the plane of engagement between thecover and bottom sections flanges 42 and 44, respectively, and approximately coplanar with locking lip 22 so that the flange snaps into engagement with the underside 32 of the lip during closing for more positive locking.

Preferably, and as best shown in FIG. 2, locking flange 26 and depending flange 34 are integrally molded with the cover sections front wall 28 from a single sheet of thermoplastic foam. A bulge 48 is thus provided in front wall 28 to permit flexing of locking flange 26, primarily around the juncture 50 between bulge 48 and front wall 28, over lip 22 during closing. Bulge 48 may be either rounded, as shown in FIG. 2, or of rectangular configuration, as shown in FIG. 3.

To effect a locking closure of the carton of FIGS. 1-4, cover section 10 is rotated about hinge 18 toward closing relationship with bottom section 12 and pressed downward until flanges 42 and 44 are in abutting engagement. As the carton is closing, locking flange 26 is flexed outwardly about juncture 50 by the inner surface 38 of depending flange 34 riding over the outer edge 40 of locking lip 22. When the carton is completely closed as shown in FIG. 4, locking flange 26 snaps back into engagement with the underside 32 of lip 22 to hold the sections together.

When it is desired to open the carton, flange 34 is grasped and pulled upwardly and outwardly. This results in locking flange 26 flexing about juncture 50 and being pulled out of engagement with looking lip 22.

In accordance with an alternative embodiment of this invention, and as shown in FIGS. 7, there is provided a plurality of intermittently spaced locking lips 22 and corresponding locking flanges 26' on the front walls of the carton similar to the single locking mechanism of the previous embodiment. As best shown in FIG. 5, the bottom sections flange 44 is raised and recessed at spaced intervals along the sections front wall intermediate its ends, and forms the plurality of locking lips 22' of the interlocking means. Similarly, the cover section's flange 42 includes a plurality of downwardly extending portions at spaced intervals along the sections front wall 28, and forms the leading edges 46' of the plurality of depending flanges 34' of the interlocking means. Between the plurality of spaced locking flanges and lips, the flanges 42 and 44 lie in abutting engagement with one another when the sections are in a closed-superimposed position.

Thus, the upper surface 30 of locking flanges 26 in this embodiment are above the plane of engagement between the cover and bottom sections flanges 42 and 44, respectively, and are approximately coplanar with locking lips 22 so that they snap into engagement with the undersides 32' of lips 22' during closing for more positive locking.

Preferably, and as best shown in FIG. 6, locking flanges 26 and depending flanges 34 are integrally molded with the cover sections front wall 28 from a single sheet of thermoplastic foam. Hence, as in the previous embodiment, a bulge 48 is provided in front wall 28 to permit flexing of the locking flanges over the locking lips.

In this embodiment, and as best shown in FIG. 7, locking lips 22' are recessed so that the leading edges 46 of flanges 34 are substantially coplanar vertically with the leading edges of flanges 42 and 44. Hence, the locking mechanism of this embodiment does not project any singular element beyond the normal boundaries of the carton substantially preventing the carton from being accidentally opened during handling.

Locking of the carton is effected in a manner similar to the previous embodiment, cover section being pressed down against bottom section 12 to cause locking flanges 26' to snap under and into engagement with their corresponding lips 22'.

a To open the carton, the fingers are wedged between a number of flanges 34 and the bottom sections front wall 24, and the flanges are pulled upwardly and outwardly, pulling flanges 26' out of engagement with the locking lips.

To strengthen the interlocking means of this embodiment, locking flanges 26' and locking lips 22 are located adjacent the carton ribs 51 that form the egg-accommodating cells in the carton.

It can be seen therefore that the bottom and cover sections of both embodiments can be easily, automatically, and positively locked together simply by moving the sections into closed position, and easily opened simply by pulling upwardly and outwardly on the interlocking means depending flange 34.

The integral web 18 connecting the rear walls 14 and 16 of the cover and bottom sections, respectively, of both embodiments is preferablydoubly creased at 52 and 54 to provide a double hinge with a compressible midportion 56 between the creases that resiliently urges the cover and bottom sections apart so that locking flange 26 snaps tightly into engagement with the underside of the bottom sections protruding lip 22 when the carton is closed.

It is to be understood that the cartons described in the drawings and utilizing the locking mechanisms of this invention are preferred carton designs for eggs. The invention, however, is applicable to a variety of egg carton shapes and other similar cartons. An egg carton, for example, having three parallel rows of four egg-accommodating cells each could easily be used with the present locking mechanism.

The invention thus provides new and improved locking mechanisms for packaging cartons and particularly molded egg cartons. The locking mechanism facilitates the easy closing, positive locking, and easy opening of the cartons without the need for applying excessive pressure and without fear of damage to the cartons or their contents. Further, the locking mechanisms of this invention can be'integrally molded with the egg carton from a single sheet of suitable material using conventional molding techniques.

The invention in its broader aspects is not limited to the specific details shown and described and departures may be made from such details without departing from the principles of the invention and without sacrificing its chief advantages.

Iclaim:

l. A packaging carton comprising a bottom section having a front wall and a rear wall; a cover section having a front wall and a rear wall; laterally extending flanges on the upper and lower edges of the walls of the bottom and cover sections, respectively, said flanges being in substantial abutting engagement with one another when the sections are in closed position; interlocking means on the front walls of the cover and bottom sections for releasably holding the carton closed, said interlocking means comprising:

a. a protruding longitudinal locking lip integral with and extending along at least a portion of the length of the top of the bottom sections front wall;

b. a locking flange integral with and extending inwardly from and along a portion of the length of the bottom of the cover sections front wall adjacent the locking lip, the locking flange engaging the underside of the locking lip when the carton is closed to hold the sections together;

c. a depending flange integral with and extending downwardly and outwardly from the inner edge of the locking flange, whereby the depending flange engages the locking lip as the sections are moved into a closed position to flex the locking flange over the lip and into locking position; and

(I. wherein said packaging carton further comprises a resilient hinged connection between the cover and bottom sections rear walls for urging the sections apart so that the locking flange snaps tightly into engagement with the underside of the locking lip when the sections are moved into closed position.

2. The carton of claim 1, in the form of an egg carton, with the bottom section having a plurality of egg-accommodating cells.

3. The carton of claim 1, wherein the carton is of unitary molded construction.

4. The carton of claim 3, wherein the carton is formed of foamed polystyrene.

5. The carton of claim 1, wherein a portion of said bottom sections front wall flange is raised to form the longitudinal locking lip, and a portion of said cover sections front wall topsections intermediate 7. The carton of claim 1, including a plurality of spaced interlocking means along the front walls of the bottom and cover sections.

8. The carton of claim 7, wherein portions of the bottom sections front wall flange are raised and recessed forming a plurality of locking lips, and corresponding portions of the cover section's front wall flange extend downwardly to form the leading edges of the depending flanges.

9. The carton of claim 8, wherein the leading edges of the depending flanges and the laterally-extending flanges are substantially coplanar vertically.

Claims (9)

1. A packaging carton comprising a bottom section having a front wall and a rear wall; a cover section having a front wall and a rear wall; laterally extending flanges on the upper and lower edges of the walls of the bottom and cover sections, respectively, said flanges being in substantial abutting engagement with one another when the sections are in closed position; interlocking means on the front walls of the cover and bottom sections for releasably holding the carton closed, said interlocking means comprising: a. a protruding longitudinal locking lip integral with and extending along at least a portion of the length of the top of the bottom section''s front wall; b. a locking flange integral with and extending inwardly from and along a portion of the length of the bottom of the cover section''s front wall adjacent the locking lip, the locking flange engaging the underside of the locking lip when the carton is closed to hold the sections together; c. a depending flange integral with and extending downwardly and outwardly from the inner edge of the locking flange, whereby the depending flange engages the locking lip as the sections are moved into a closed position to flex the locking flange over the lip and into locking position; and d. wherein said packaging carton further comprises a resilient hinged connection between the cover and bottom section''s rear walls for urging the sections apart so that the locking flange snaps tightly into engagement with the underside of the locking lip when the sections are moved into closed position.
2. The carton of claim 1, in the form of an egg carton, with the bottom section having a plurality of egg-accommodating cells.
3. The carton of claim 1, wherein the carton is of unitary molded construction.
4. The carton of claim 3, wherein the carton is formed of foamed polystyrene.
5. The carton of claim 1, wherein a portion of said bottom section''s front wall flange is raised to form the longitudinal locking lip, and a portion of said cover section''s front wall flange extends downwardly and outwardly to form the leading edge of the depending flange.
6. The carton of claim 5, wherein the locking lip and locking flange of the interlocking means extend substantially along the entire front walls of the bottom and top sections intermediate their ends.
7. The carton of claim 1, including a plurality of spaced interlocking means along the front walls of the bottom and cover sections.
8. The carton of claim 7, wherein portions of the bottom section''s front wall flange are raised and recessed forming a plurality of locking lips, and corresponding portions of the cover section''s front wall flange extend downwardly to form the leading edges of the depending flanges.
9. The carton of claim 8, wherein the leading edges of the depending flanges and the laterally-extending flanges are substantially coplanar vertically.
US3568916A 1969-04-04 1969-04-04 Locking mechanisms for egg cartons Expired - Lifetime US3568916A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766953A (en) * 1971-12-27 1973-10-23 T Wilson Covered tank or the like
US4195677A (en) * 1979-02-26 1980-04-01 Hagg Henry W Golf club cover
GB2124190A (en) * 1982-07-23 1984-02-15 Dolphin Packaging Materials Moulded containers
US4625905A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Hinged cover carton
US4625906A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Eighteen cell hinged-cover carbon thermoformed from plastic sheet
USD432914S (en) 1999-05-27 2000-10-31 Pactiv Corporation Bottom for a container
USD439160S1 (en) 1999-09-03 2001-03-20 Tenneco Packaging Inc. Container
USD443205S1 (en) 1999-05-14 2001-06-05 Tenneco Packaging Inc. Bottom for a container
USD444382S1 (en) 1999-10-06 2001-07-03 Pactiv Corporation Cover for a container
US6257401B1 (en) 1999-05-14 2001-07-10 Pactiv Corporation Vented container with handles and embossment
WO2005035392A1 (en) * 2003-10-08 2005-04-21 Brødrene Hartmann A/S Package with retainment means

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258187A (en) * 1965-03-29 1966-06-28 A & E Plastik Pak Co Carton with cam-latching lid
US3258186A (en) * 1964-04-13 1966-06-28 A & E Plastik Pak Co Container with cam-latching top
US3298594A (en) * 1965-08-11 1967-01-17 Container Corp Egg carton
US3396895A (en) * 1967-03-27 1968-08-13 Kennesaw Plastic Company Egg carton and label
US3398875A (en) * 1966-12-30 1968-08-27 United Ind Syndicate Egg cartons

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258186A (en) * 1964-04-13 1966-06-28 A & E Plastik Pak Co Container with cam-latching top
US3258187A (en) * 1965-03-29 1966-06-28 A & E Plastik Pak Co Carton with cam-latching lid
US3298594A (en) * 1965-08-11 1967-01-17 Container Corp Egg carton
US3398875A (en) * 1966-12-30 1968-08-27 United Ind Syndicate Egg cartons
US3396895A (en) * 1967-03-27 1968-08-13 Kennesaw Plastic Company Egg carton and label

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766953A (en) * 1971-12-27 1973-10-23 T Wilson Covered tank or the like
US4195677A (en) * 1979-02-26 1980-04-01 Hagg Henry W Golf club cover
GB2124190A (en) * 1982-07-23 1984-02-15 Dolphin Packaging Materials Moulded containers
US4625905A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Hinged cover carton
US4625906A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Eighteen cell hinged-cover carbon thermoformed from plastic sheet
US6257401B1 (en) 1999-05-14 2001-07-10 Pactiv Corporation Vented container with handles and embossment
USD443205S1 (en) 1999-05-14 2001-06-05 Tenneco Packaging Inc. Bottom for a container
US6349847B1 (en) 1999-05-14 2002-02-26 Pactiv Corporation Vented container with handles and embossment
USD432914S (en) 1999-05-27 2000-10-31 Pactiv Corporation Bottom for a container
USD433334S (en) 1999-05-27 2000-11-07 Pactiv Corporation Cover for a container
USD439160S1 (en) 1999-09-03 2001-03-20 Tenneco Packaging Inc. Container
USD444382S1 (en) 1999-10-06 2001-07-03 Pactiv Corporation Cover for a container
WO2005035392A1 (en) * 2003-10-08 2005-04-21 Brødrene Hartmann A/S Package with retainment means
US20070017845A1 (en) * 2003-10-08 2007-01-25 Hanka Tietschert Package with retainment means
EP1995185A3 (en) * 2003-10-08 2008-12-03 Brödrene Hartmann A/S Package with retainment means

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Owner name: ATLANTIC RICHFIELD COMPANY, 515 FLOWER ST., LOS AN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE JULY 1, 1981.;ASSIGNOR:ARCO POLYMERS, INC., A CORP. OF PA;REEL/FRAME:003944/0516

Effective date: 19810630