US3858754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container end with pre-bulge
Assignee: Rexam Beverage Can Co
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Filing: 1973-10-29
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Granted: 1975-01-07
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Expires: 1993-10-29
Abstract
Abstract A container end having a permanently attached tear strip is disclosed herein. The tear strip has opposite ends with one end located adjacent the periphery of the main body of the end which has a rim extending above the main body around the periphery. A tab is connected to the tear strip adjacent the periphery of the end. The main body and the tab have a transverse bend that extends across the tear strip and the tab adjacent the connection to produce a bulge that extends towards the outside of the container end which will maintain the tab flat against the end after the end has been inserted on a container and pressurized during filling.
Inventors
- 👤 Leon M Patarini
- 👤 Frank R Pileggi
- 👤 Frank Kratochvil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:03
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4012
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
In an esay open panel having a weakened line defining an elongated tear strip, said panel having a rim located around the periphery thereof and said rim extending above a main body of said panel, said tear strip having opposite ends with one end located adjacent the periphery of said main body, an elongated tab having opposite ends with a connection between said tab and tear strip adjacent said one end of said tear strip, said main body and tab having a bend extending transversely of said tab and tear strip between said connection and the opposite end of said tab to produce a bulge in said main body extending toward a plane that is defined by the upper end of said rim.
Claim 2
Dependent Claim
123 words
In an esay open panel having a weakened line defining an elongated tear strip, said panel having a rim located around the periphery thereof and said rim extending above a main body of said panel, said tear strip having opposite ends with one end located adjacent the periphery of said main body, an elongated tab having opposite ends with a connection between said tab and tear strip adjacent said one end of said tear strip, said main body and tab having a bend extending transversely of said tab and tear strip between said connection and the opposite end of said tab to produce a bulge in said main body extending toward a plane that is defined by the upper end of said rim.
Claim 3
Dependent Claim
34 words
An easy open end as defined in claim 1, in which said main body has panel portions on opposite sides of said bend and said panel portions define an included angle greater than 150*.
Claim 4
Dependent Claim
50 words
An easy open end panel as defined in claim 1, in which the portions of said tab and said tear strip having said connection are substantially planar between said bend and said one end and define an angle greater than 10* with respect to said plane extending along said rim.
Claim 5
Dependent Claim
44 words
An easy open container as defined in claim 3, in which portions of said tab and tear strip are substantially planar on the opposite side of said bend and define an angle less than 5* with respect to said plane extending along said rim.
Claim 6
Dependent Claim
34 words
An easy open end panel as defined in claim 4, in which said main body has a depression extending away from said rim and said tear strip and tab are located in said depression.
Claim 7
Dependent Claim
35 words
An easy open end panel as defined in claim 1, in which said panel is circular and said bend is located between the center of said panel and said one end of said tear strip.
Claim 8
Dependent Claim
96 words
An easy open end panel as defined in claim 6, in which said tear strip and tab are substantially planar on opposite sides of said bend and in which (1) said tear strip and tab define an angle greater than 5* with respect to said plane extending along the upper end of said rim between said bend and the periphery of said panel and (2) said tear strip and tab define an angle less than 5* with respect to said plane extending along the upper end of said rim on the opposite side of said bend.
Claim 9
Dependent Claim
39 words
An easy open end panel as defined in claim 7, in which said main body defines a substantially spherical surface on the bottom of said main body adjacent the periphery along at least a portion of said main body.
References Cited (Backward Citations)
US3441171A
Cited
US3612341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |