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US3680732A Expired / Lapsed US ⏱️ 0.0 years remaining

Can closure

Assignee: Individual
•
Filing: 1970-06-29
•
Granted: 1972-08-01
•
Expires: 1990-06-29
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Abstract

Abstract For use with a convention cylindrical can having a top wall engaged to the side wall by the customary endwise projecting rim, a closure for a dispensing opening formed in said top wall and comprising a resilient pad for sealing disposition across said opening, and a relative rigid, yet resilient body secured to said pad and extending across said can top wall and incorporating means at its opposite ends for forceful abutment against the outer lower edge of said rim at diametrically opposite locations thereon.

Inventors

  • 👤 George Dickie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:16
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/06; A47J36/10; B; B65; B65D; B65D45/00; B65D45/02; B65D45/28

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 292 words
For use with a can having a cylindrical side wall, a top end wall and a circumferential rim projecting endwise of said top wall and having a skirt portion abutting the outer face of said side wall to define a shoulder-forming end edge therewith, there being an opening in said top wall; a closure for said opening comprising: a body having a plate of greater area than said can opening; a resilient sealing pad carried on said plate for disposition coveringly of said opening; a flat elongate strap member rigid with said plate and extending at its ends therebeyond; said strap member being disposed transversely of the top end of said can in substantially planar parallel relation to the top end wall and abutting the circumferential rim in two diametrically opposed zones, said strap member having a length slightly greater than the diameter of said rim for radial extension in its end portions beyond said rim, shoulder-engaging members integrally formed with said strap in its outer projecting end portions, the distance between said shoulder-engaging members being normally less than the diameter of the intervening portion of the related can, said shoulder-engaging members each comprising a normally downwardly and outwardly, inclined first section terminating below, and outwardly of, the adjacent portion of the can shoulder-forming end edge, and a normally upwardly and inwardly inclined locking finger section provided at the lower end of each first section, the upper inner end of each locking finger section remote from the connection to the related first section engaging said shoulder, whereby with the distance between said shoulder-engaging inner ends of said second sections being normally less than the diameter of the intervening portion of the related can, said shoulder-engaging members will be urged upwardly when engaged.
Claim 2
Dependent Claim 292 words
For use with a can having a cylindrical side wall, a top end wall and a circumferential rim projecting endwise of said top wall and having a skirt portion abutting the outer face of said side wall to define a shoulder-forming end edge therewith, there being an opening in said top wall; a closure for said opening comprising: a body having a plate of greater area than said can opening; a resilient sealing pad carried on said plate for disposition coveringly of said opening; a flat elongate strap member rigid with said plate and extending at its ends therebeyond; said strap member being disposed transversely of the top end of said can in substantially planar parallel relation to the top end wall and abutting the circumferential rim in two diametrically opposed zones, said strap member having a length slightly greater than the diameter of said rim for radial extension in its end portions beyond said rim, shoulder-engaging members integrally formed with said strap in its outer projecting end portions, the distance between said shoulder-engaging members being normally less than the diameter of the intervening portion of the related can, said shoulder-engaging members each comprising a normally downwardly and outwardly, inclined first section terminating below, and outwardly of, the adjacent portion of the can shoulder-forming end edge, and a normally upwardly and inwardly inclined locking finger section provided at the lower end of each first section, the upper inner end of each locking finger section remote from the connection to the related first section engaging said shoulder, whereby with the distance between said shoulder-engaging inner ends of said second sections being normally less than the diameter of the intervening portion of the related can, said shoulder-engaging members will be urged upwardly when engaged.
Claim 3
Dependent Claim 82 words
The inventioN as defined in claim 1 and further characterized by said resilient pad being constructed of a gas impervious material having a normal thickness slightly greater than the depth of said circumferential rim, the distance between said strap member and the proximate shoulder-engaging end being normally less than the height of said rim so that when said shoulder-engaging members are in operative position said resilient pad will be compressed to provide a snug closure with respect to said top wall opening.
Claim 4
Dependent Claim 33 words
The invention as defined in claim 1 and further characterized by a downwardly and outwardly projecting tab integrally provided with one of said shoulder-engaging members for facilitating finger manipulation of the strap member.
Claim 5
Dependent Claim 42 words
The invention as defined in claim 1 and further characterized by the inner end of the locking finger section of the shoulder-engaging member other than the one provided with the tab having a knife edge for enhancing engagement with the said skirt.

References Cited (Backward Citations)

US2777125A Cited
US2157218A Cited
DE673295C Cited
US2246533A Cited
US2776778A Cited
AT224285B Cited
US3221918A Cited
US3476284A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-01 1976-01-31 1976-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-01 1980-01-31 1980-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-01 1984-01-31 1984-08-01 $7700.00 Window Closed / Lapsed

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