US3796344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-detachable tear strip and pull tab structure for easy opening container
Assignee: Continental Can Co Inc
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Filing: 1972-05-18
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Granted: 1974-03-12
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Expires: 1992-05-18
Abstract
Abstract An easy opening container having a panel including a tear strip defined by a weakening line which terminates in spaced ends. A pull tab is attached to the panel for severing the weakening line along the length thereof and bending the tear strip into the container about a line extending between the ends of the weakening line to thereby provide a pour opening. The pull tab is constructed so as to be bendable in overlying relation with the panel after severance of the weakening line without reclosing the pour opening.
Inventors
- 👤 Phillips J De
- 👤 R Karka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:32
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4012; B65D2517/00; B65D2517/0001; B65D2517/0091; B65D2517/0092
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
An easy opening container comprising an end closure having a panel, a weakening line provided in said panel and terminating in spaced ends defining a tear strip, a pull tab, fastening means fastening said pull tab to said panel, said pull tab having a finger grip portion and a nose portion contoured to lie along said weakening line, slit means in said pull tab defining an attachment flap to which said fastening means is connected, means connecting said nose portion and said finger grip portion to provide a lever when said pull tab is tilted upwardly at said finger grip portion so that said nose portion severs said panel along said weakening line and bends said removable panel portion inwardly substantially along a line extending between said spaced ends of said weakening line to form a pour opening in said panel, said means connecting said nose portion and said finger grip portion permitting said finger grip portion to be bent relative to said nose portion to a position overlying said panel adjacent said pour opening.
Claim 2
Dependent Claim
175 words
An easy opening container comprising an end closure having a panel, a weakening line provided in said panel and terminating in spaced ends defining a tear strip, a pull tab, fastening means fastening said pull tab to said panel, said pull tab having a finger grip portion and a nose portion contoured to lie along said weakening line, slit means in said pull tab defining an attachment flap to which said fastening means is connected, means connecting said nose portion and said finger grip portion to provide a lever when said pull tab is tilted upwardly at said finger grip portion so that said nose portion severs said panel along said weakening line and bends said removable panel portion inwardly substantially along a line extending between said spaced ends of said weakening line to form a pour opening in said panel, said means connecting said nose portion and said finger grip portion permitting said finger grip portion to be bent relative to said nose portion to a position overlying said panel adjacent said pour opening.
Claim 3
Dependent Claim
28 words
The invention as defined in claim 1 wherein said fastening means comprises a rivet extending through said finger grip portion and another rivet extending through said nose portion.
Claim 4
Dependent Claim
30 words
The invention as defined in claim 2 wherein said slit means defining said attachment flap is formed in said finger grip portion, and said slit is disposed about said rivet.
Claim 5
Dependent Claim
26 words
The invention as defined in claim 3 wherein a U-shaped slit is formed in said nose portion with the bight thereof facing said finger grip portion.
Claim 6
Dependent Claim
31 words
The invention as defined in claim 3 wherein a U-shaped score line is formed in said panel and disposed about said rivet with the open end facing toward said nose portion.
Claim 7
Dependent Claim
31 words
The invention as defined in claim 4 wherein a U-shaped score line is formed in said panel and disposed about said rivet with the open end facing toward said nose portion.
Claim 8
Dependent Claim
232 words
An easy opening container comprising an end closure having a panel, a weakening line in said panel and terminating in spaced ends defining a tear Strip, a pull tab having a finger grip portion and a nose portion contoured to lie along said weakening line, a first rivet means fastening said nose portion to said panel, a second rivet means fastening said finger grip portion to said panel, slit means in said pull tab defining an attachment flap to which said second rivet means is fastened, a hem extending between said nose and said finger grip portion, a transverse slit disposed across said tab between said nose portion and said finger grip portion and extending partially into said hem to form an unslit portion whereby said nose portion and said finger grip portion provide a lever when said pull tab is tilted upwardly at said finger grip portion so that said nose portion severs said panel along said weakening line and bends said removable panel portion inwardly substantially along a line extending between said spaced ends of said weakening line to form a pour opening in said panel, said nose portion and said finger grip portion being bendable relative to each other about said unslit portion of said hem to locate said finger grip portion in an overlying position on said panel adjacent said pour opening after said weakening line is severed.
Claim 9
Dependent Claim
232 words
An easy opening container comprising an end closure having a panel, a weakening line in said panel and terminating in spaced ends defining a tear Strip, a pull tab having a finger grip portion and a nose portion contoured to lie along said weakening line, a first rivet means fastening said nose portion to said panel, a second rivet means fastening said finger grip portion to said panel, slit means in said pull tab defining an attachment flap to which said second rivet means is fastened, a hem extending between said nose and said finger grip portion, a transverse slit disposed across said tab between said nose portion and said finger grip portion and extending partially into said hem to form an unslit portion whereby said nose portion and said finger grip portion provide a lever when said pull tab is tilted upwardly at said finger grip portion so that said nose portion severs said panel along said weakening line and bends said removable panel portion inwardly substantially along a line extending between said spaced ends of said weakening line to form a pour opening in said panel, said nose portion and said finger grip portion being bendable relative to each other about said unslit portion of said hem to locate said finger grip portion in an overlying position on said panel adjacent said pour opening after said weakening line is severed.
References Cited (Backward Citations)
US3656652A
Cited
US3618815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |