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US3554400A Expired / Lapsed US ⏱️ 0.0 years remaining

Nonflipping beer can end

Assignee: Continental Can Co Inc
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Filing: 1964-02-18
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Granted: 1971-01-12
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Expires: 1984-02-18
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Abstract

Abstract An easy opening end particularly adapted for use on beverage cans, said end including an end panel, weakening line formed in said end panel and defining a removable tearout portion which extends generally from the central portion of said end panel to the periphery of said end panel, and a circumferential rib in said end panel, said rib being generally C-shaped in outline and having opposite ends terminating adjacent said tearout portion and reinforcing said end panel around said tearout portion to prevent premature rupturing of said can end along said weakening line, and a pull tab secured to said tearout portion for effecting the removal thereof, said rib being depressed to define an upwardly opening groove, and said pull tab having a free end overlying said groove whereby clearance is provided between said pull tab free end and said end panel to facilitate the initial lifting of said pull tab.

Inventors

  • 👤 John S Bozek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:21
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4012; B65D17/34; B65D17/347

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 152 words
An easy opening end particularly adapted for use on beverage cans, said end including an end panel weakening line formed in said end panel and defining a removable tearout portion which extends generally from the central portion of said end panel to the periphery of said end panel, and a circumferential rib in said end panel, said rib being generally C-shaped in outline and having opposite ends terminating adjacent said tearout portion and reinforcing said end panel around said tearout portion to prevent premature rupturing of said can end along said weakening line, and a pull tab is secured to said tearout portion for effecting the removal thereof, said rib being depressed to define an upwardly opening groove, and said pull tab having a free end overlying said groove whereby clearance is provided between said pull tab free end and said end panel to facilitate the initial lifting of said pull tab.
Claim 2
Dependent Claim 152 words
An easy opening end particularly adapted for use on beverage cans, said end including an end panel weakening line formed in said end panel and defining a removable tearout portion which extends generally from the central portion of said end panel to the periphery of said end panel, and a circumferential rib in said end panel, said rib being generally C-shaped in outline and having opposite ends terminating adjacent said tearout portion and reinforcing said end panel around said tearout portion to prevent premature rupturing of said can end along said weakening line, and a pull tab is secured to said tearout portion for effecting the removal thereof, said rib being depressed to define an upwardly opening groove, and said pull tab having a free end overlying said groove whereby clearance is provided between said pull tab free end and said end panel to facilitate the initial lifting of said pull tab.
Claim 3
Dependent Claim 200 words
In an end for a can of the easy opening type and particularly adapted for the dispensing of beverages, said end including an end panel having a single continuous score line defining a removable tearout portion which extends generally radially from the central portion of said End panel to the periphery of said end panel, a pull tab secured to the inner end of said tearout portion for facilitating the removal of said tearout portion, and wherein in the forming of said score line there results in an excess of material which undesirably increases the flexibility of said end panel and effects the flipping of said pull tab from the surface of said end panel; the improvement residing in providing said end panel with means absorbing said excess material and stiffening said panel against flexing, said means including an offset portion on each side of said tearout portion circumferentially of said end panel, said offset portions are end portions of a C-shaped offset portion of said end panel which reinforces the entire end panel, and said C-shaped offset portion is inwardly offset and extends below a free end of said pull tab to facilitate the lifting of said pull tab.
Claim 4
Dependent Claim 200 words
In an end for a can of the easy opening type and particularly adapted for the dispensing of beverages, said end including an end panel having a single continuous score line defining a removable tearout portion which extends generally radially from the central portion of said End panel to the periphery of said end panel, a pull tab secured to the inner end of said tearout portion for facilitating the removal of said tearout portion, and wherein in the forming of said score line there results in an excess of material which undesirably increases the flexibility of said end panel and effects the flipping of said pull tab from the surface of said end panel; the improvement residing in providing said end panel with means absorbing said excess material and stiffening said panel against flexing, said means including an offset portion on each side of said tearout portion circumferentially of said end panel, said offset portions are end portions of a C-shaped offset portion of said end panel which reinforces the entire end panel, and said C-shaped offset portion is inwardly offset and extends below a free end of said pull tab to facilitate the lifting of said pull tab.
Claim 5
Dependent Claim 207 words
In an end for a can of the easy opening type and particularly adapted for the dispensing of beverages, said end including an end panel having a single continuous score line defining a removable tearout portion which extends generally radially from the central portion of said end panel to the periphery of said end panel, a pull tab secured to the inner end of said tearout portion for facilitating the removal of said tearout portion, and wherein in the forming of said score line there results an excess of material which undesirably increases the flexibility of said end panel and effects the flipping of said pull tab from the surface of said end panel; the improvement residing in providing said end panel with means absorbing said excess material and stiffening said panel against flexing, said means including offset portions extending at least from a pair of points adjacent each side of said tearout portion away from said tearout portion, at least one said offset portion is depressed to define an upwardly facing groove, and said pull tab having a free end overlying said groove whereby clearance is provided between said pull tab free end and said end panel to facilitate the initial lifting of said pull tab.
Claim 6
Dependent Claim 207 words
In an end for a can of the easy opening type and particularly adapted for the dispensing of beverages, said end including an end panel having a single continuous score line defining a removable tearout portion which extends generally radially from the central portion of said end panel to the periphery of said end panel, a pull tab secured to the inner end of said tearout portion for facilitating the removal of said tearout portion, and wherein in the forming of said score line there results an excess of material which undesirably increases the flexibility of said end panel and effects the flipping of said pull tab from the surface of said end panel; the improvement residing in providing said end panel with means absorbing said excess material and stiffening said panel against flexing, said means including offset portions extending at least from a pair of points adjacent each side of said tearout portion away from said tearout portion, at least one said offset portion is depressed to define an upwardly facing groove, and said pull tab having a free end overlying said groove whereby clearance is provided between said pull tab free end and said end panel to facilitate the initial lifting of said pull tab.

References Cited (Backward Citations)

US195604A Cited
US484099A Cited
US1022050A Cited
US2029329A Cited
US2112231A Cited
US2305528A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

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