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US3833144A Expired / Lapsed US ⏱️ 0.0 years remaining

Two position pull tab easy-open container component

Assignee: Primerica Inc
•
Filing: 1972-07-10
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Granted: 1974-09-03
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Expires: 1992-07-10
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Abstract

Abstract An easy-open container component comprising an end closure having an aperture therein and a reclosable two-position pull-tab having a downwardly depending plug member whose sidewall is larger at its top than at the bottom, and whose bottom surface initially is planar with, and is adhered to a sealing membrane in turn adhered to, the underside of the central panel of the end closure. Opening of the end closure is effected by pulling upwardly on the pull-tab to pull the plug member out of the aperture and to cut the sealing membrane about the edge of the rim of the aperture. Reclosure is effected by pressuredly inserting the plug member downwardly into the aperture so that the edge of the rim of the aperture pressuredly sealingly engages the larger top portion of the plug member sidewall, and so that the bottom surface of the plug member is below the plane of the underside of the central panel of the end closure.

Inventors

  • 👤 R Bollmann
  • 👤 G Richards

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 09:05
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/50; B65D17/506; B65D17/501; B65D17/503; B65D2517/00; B65D2517/0001; B65D2517/001; B65D2517/0013; B65D2517/0031; B65D2517/0038; B65D2517/0058; B65D2517/0059; B65D2517/0061; B65D2517/0091; B65D2517/0094; B65D2517/50; B65D2517/5002; B65D2517/5024; B65D2517/5032; B65D2517/504; B65D2517/5043; B65D2517/5045; B65D2517/5072; B65D2517/5075

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 173 words
An easy-open container component comprising: a panel portion having an aperture therein, and a rim and an edge defining the aperture, an internal sealing membrane bonded to the underside of said panel and sealing said aperture, and a two-position pull tab having a flange vertically spaced from said rim, and a plug member including a side wall, and a bottom wall, said bottom wall being positioned within said aperture so that its undersurface is substantially planar to the underside of said panel portion, and is bonded to a portion of said sealing membrane through said aperture, said pull tab being adapted to be pulled upwardly to cut said sealing membrane along said edge when said pull tab is removed from said panel portion, and said side wall being adapted to be pressuredly sealingly engaged by said edge when said plug member is pressed into a second position within said aperture whereby said Undersurface of said bottomwall is below the underside of said panel portion and whereby said pull tab serves as a reclosure.
Claim 2
Dependent Claim 173 words
An easy-open container component comprising: a panel portion having an aperture therein, and a rim and an edge defining the aperture, an internal sealing membrane bonded to the underside of said panel and sealing said aperture, and a two-position pull tab having a flange vertically spaced from said rim, and a plug member including a side wall, and a bottom wall, said bottom wall being positioned within said aperture so that its undersurface is substantially planar to the underside of said panel portion, and is bonded to a portion of said sealing membrane through said aperture, said pull tab being adapted to be pulled upwardly to cut said sealing membrane along said edge when said pull tab is removed from said panel portion, and said side wall being adapted to be pressuredly sealingly engaged by said edge when said plug member is pressed into a second position within said aperture whereby said Undersurface of said bottomwall is below the underside of said panel portion and whereby said pull tab serves as a reclosure.
Claim 3
Dependent Claim 20 words
The container component of claim 1 wherein said rim is disposed in substantially the same plane as said panel portion.
Claim 4
Dependent Claim 20 words
The container component of claim 1 wherein said rim is a raised substantially arcuate bead and said edge faces downward.
Claim 5
Dependent Claim 24 words
The container component of claim 3 wherein said downwardly facing edge is disposed above the level of the adjacent inner surface of said panel.
Claim 6
Dependent Claim 12 words
The container component of claim 3 wherein said membrane is gas impermeable.
Claim 7
Dependent Claim 14 words
The container component of claim 5 wherein said membrane includes a layer of foil.
Claim 8
Dependent Claim 11 words
The container component of claim 5 wherein said membrane is thermoplastic.
Claim 9
Dependent Claim 23 words
The container component of claim 1 wherein said pull tab is an injection molded plastic piece formed with an integral pull handle element.
Claim 10
Dependent Claim 57 words
The container component of claim 1 wherein said side wall is tapered inwardly from top to bottom and the upper portion of said sidewall is larger than said aperture and is pressuredly sealingly engaged by said edge when said plug member is pressed into said second position to permit said pull tab to serve as a reclosure.
Claim 11
Dependent Claim 57 words
The container component of claim 2 wherein said side wall is tapered inwardly from top to bottom and the upper portion of said sidewall is larger than said aperture and is pressuredly sealingly engaged by said edge when said plug member is pressed into said second position to permit said pull tab to serve as a reclosure.
Claim 12
Dependent Claim 57 words
The container component of claim 3 wherein said side wall is tapered inwardly from top to bottom and the upper portion of said sidewall is larger than said aperture and is pressuredly sealingly engaged by said edge when said plug member is pressed into said second position to permit said pull tab to serve as a reclosure.
Claim 13
Dependent Claim 57 words
The container component of claim 8 wherein said side wall is tapered inwardly from top to bottom and the upper portion of said sidewall is larger than said aperture and is pressuredly sealingly engaged by said edge when said plug member is pressed into said second position to permit said pull tab to serve as a reclosure.
Claim 14
Dependent Claim 207 words
An easy-open container component comprising: a panel portion having an aperture therein, and a raised substantially arcuate, beaded rim and a downwardly facing edge, said edge being disposed above the level of the adjacent inner surface of said panel and defining the aperture, a metallic foil sealing membrane bonded to the underside of said panel and sealing said aperture, and a two-position, molded, plastic pull tab having a flange vertically spaced above the uppermost portion of said rim, and a plug member including a side wall and a bottom wall, said bottom wall being positioned within said aperture, and having its undersurface substantially planar to the underside of said panel portion and bonded to a portion of said sealing membrane through said aperture, said pull tab being adapted to being pulled upwardly to cut said sealing membrane along said edge when said pull tab is removed from said panel portion, and said side wall being tapered inwardly from top to bottom and being adapted to be pressuredly engaged by said edge when said plug member is pressed into a second position within said aperture whereby said undersurface of said bottom-wall is below the underside of said panel portion and whereby said pull tab serves as a reclosure.
Claim 15
Dependent Claim 207 words
An easy-open container component comprising: a panel portion having an aperture therein, and a raised substantially arcuate, beaded rim and a downwardly facing edge, said edge being disposed above the level of the adjacent inner surface of said panel and defining the aperture, a metallic foil sealing membrane bonded to the underside of said panel and sealing said aperture, and a two-position, molded, plastic pull tab having a flange vertically spaced above the uppermost portion of said rim, and a plug member including a side wall and a bottom wall, said bottom wall being positioned within said aperture, and having its undersurface substantially planar to the underside of said panel portion and bonded to a portion of said sealing membrane through said aperture, said pull tab being adapted to being pulled upwardly to cut said sealing membrane along said edge when said pull tab is removed from said panel portion, and said side wall being tapered inwardly from top to bottom and being adapted to be pressuredly engaged by said edge when said plug member is pressed into a second position within said aperture whereby said undersurface of said bottom-wall is below the underside of said panel portion and whereby said pull tab serves as a reclosure.
Claim 16
Dependent Claim 52 words
The container component of claim 13 wherein the upper portion of said sidewall is larger than said aperture and is that portion of said side wall which is pressuredly sealingly engaged by said edge when said plug member is pressed into said second position whereby said pull tab serves as a reclosure.
Claim 17
Dependent Claim 57 words
The container component of claim 13 wherein said edge has corners and is inclined upwardly with respect to said aperture so that its bottom corner is closest to said sealing membrane and functions as a knife-like cutting edge when said sealing membrane is pulled upwardly against it, when said pull tab is removed from said panel portion.
Claim 18
Dependent Claim 45 words
The container component of claim 15 wherein said edge is inclined upwardly and inwardly from said bottom corner so that said top corner is closest to said plug member is inserted into said aperture to thereby permit said pull tab to serve as a reclosure.

References Cited (Backward Citations)

DE634941C Cited
US2575490A Cited
US3355059A Cited
US3308986A Cited
US3441167A Cited
US3583595A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-02 1978-03-04 1978-09-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-02 1982-03-04 1982-09-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-02 1986-03-04 1986-09-03 $7700.00 Window Closed / Lapsed

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