US3979003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Re-usable frangible closure
Assignee: Packaging Resources Inc
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Filing: 1975-03-10
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Granted: 1976-09-07
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Expires: 1995-03-10
Abstract
Abstract There is disclosed a cup-like container closure of resilient and flexible thermoplastic material having a removable tear strip defined by an annular groove on the inner surface of the closure skirt. The tear strip includes a gripping portion adjacent opposite ends of the strip which are separated by a narrow gap. The closure skirt is substantially cylindrical and free from outwardly depending portions. Contents of the container are effectively sealed therein by tight interengagement of cooperating surfaces of the container and the closure. The closure is re-usable for closing the container after removal of the tear strip.
Inventors
- 👤 David O. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:27
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219; B65D43/00; B65D43/02; B65D43/0235; B65D43/0237; B65D43/0256; B65D2401/00; B65D2401/15; B65D2401/25; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/80
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
221 words
A resilient deformable closure for sealing and/or re-closing a container having an open upper edge comprising a body formed of a molded plastic material and having a top portion and a skirt portion depending therefrom and having all portions of the distal extremity of said skirt portion parallel to said top portion. said skirt portion having an inner surface forming a re-entrant portion joined to the inner surface of said top portion and sealingly engaging the open upper edge and outer surface of a container when the closure is mounted thereon, a score line on said inner surface of said skirt portion forming a continuous weakened section in said skirt portion at a location between the distal extremity thereof and said re-entrant portion and forming a removable skirt portion between said weakened section and said distal extremity, and removal means including a pair of spaced-apart terminal tabs connected to said removable skirt portion and disposed between said weakened section and said distal extremity, said skirt portion also having an outer surface portion disposed above said weakened section and adjacent said pair of terminal tabs and recessed inwardly from other portions of the outer surface of said skirt portion, the peripheral extent of said recessed portion being slightly greater than the spacing between said terminal tabs to facilitate lifting and grasping thereof.
Claim 2
Dependent Claim
221 words
A resilient deformable closure for sealing and/or re-closing a container having an open upper edge comprising a body formed of a molded plastic material and having a top portion and a skirt portion depending therefrom and having all portions of the distal extremity of said skirt portion parallel to said top portion. said skirt portion having an inner surface forming a re-entrant portion joined to the inner surface of said top portion and sealingly engaging the open upper edge and outer surface of a container when the closure is mounted thereon, a score line on said inner surface of said skirt portion forming a continuous weakened section in said skirt portion at a location between the distal extremity thereof and said re-entrant portion and forming a removable skirt portion between said weakened section and said distal extremity, and removal means including a pair of spaced-apart terminal tabs connected to said removable skirt portion and disposed between said weakened section and said distal extremity, said skirt portion also having an outer surface portion disposed above said weakened section and adjacent said pair of terminal tabs and recessed inwardly from other portions of the outer surface of said skirt portion, the peripheral extent of said recessed portion being slightly greater than the spacing between said terminal tabs to facilitate lifting and grasping thereof.
Claim 3
Dependent Claim
254 words
The combination comprising: a container comprising wall means defining an opening bounded by an upwardly directed edge portion of said wall means, a peripheral, outwardly projecting bead on the outer surface of said wall means adjacent said opening, and a peripheral shoulder on said wall means spaced from and below said bead; and a resilient deformable closure adapted to be stretched over said upwardly directed edge portion for sealing and/or reclosing said container comprising a body formed of a molded plastic material and having a top portion and a skirt portion depending therefrom, said skirt portion extending between said upwardly directed edge and said shoulder and terminating in a distal extremity parallel to said top portion, the outer surface of which is closely adjacent and in confronting relation to said shoulder when said closure is mounted on said container, said skirt portion having an inner surface joined to the inner surface of said top portion, said inner surface of said skirt portion having a re-entrant portion sealingly engaging outer surface portions of said container bead when said closure is mounted on said container, a score line on said inner surface of said skirt portion forming a continuous weakened section in said skirt portion at a location between said distal extremity thereof and said top portion and forming a removable skirt portion between said weakened section and said distal extremity, and removal means including a peripherally extending terminal tab connected to said removable skirt portion and disposed between said weakened section and said distal extremity.
Claim 4
Dependent Claim
254 words
The combination comprising: a container comprising wall means defining an opening bounded by an upwardly directed edge portion of said wall means, a peripheral, outwardly projecting bead on the outer surface of said wall means adjacent said opening, and a peripheral shoulder on said wall means spaced from and below said bead; and a resilient deformable closure adapted to be stretched over said upwardly directed edge portion for sealing and/or reclosing said container comprising a body formed of a molded plastic material and having a top portion and a skirt portion depending therefrom, said skirt portion extending between said upwardly directed edge and said shoulder and terminating in a distal extremity parallel to said top portion, the outer surface of which is closely adjacent and in confronting relation to said shoulder when said closure is mounted on said container, said skirt portion having an inner surface joined to the inner surface of said top portion, said inner surface of said skirt portion having a re-entrant portion sealingly engaging outer surface portions of said container bead when said closure is mounted on said container, a score line on said inner surface of said skirt portion forming a continuous weakened section in said skirt portion at a location between said distal extremity thereof and said top portion and forming a removable skirt portion between said weakened section and said distal extremity, and removal means including a peripherally extending terminal tab connected to said removable skirt portion and disposed between said weakened section and said distal extremity.
Claim 5
Dependent Claim
46 words
The combination of claim 2 wherein said skirt portion has an outer surface portion disposed above said weakened section and adjacent said terminal tab and recessed inwardly from other portions of the outer surface of said skirt portion to facilitate the grasping of said terminal tab.
Claim 6
Dependent Claim
57 words
The combination of claim 3 wherein said terminal tab comprises one end of said removable skirt portion, the other end of said removable skirt portion terminating in a second terminal tab confronting and spaced from said first mentioned terminal tab, and said recessed portion having a peripheral extent slightly greater than the spacing between said terminal tabs.
Claim 7
Dependent Claim
34 words
The combination of claim 2 wherein said weakened section is located between said re-entrant portion and said distal extremity so that said re-entrant portion is not removed by removal of said removable skirt portion.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |