Patent US4387826A successfully refreshed from Google Patents.
US4387826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for cans provided with beaded edge
Assignee: Individual
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Filing: 1981-07-31
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Granted: 1983-06-14
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Expires: 2001-07-31
Abstract
Abstract A closure device for cans having a beaded edge and a cover with a wall part to be torn-off for formation of a pouring opening, the closure device being provided at two opposite ends of a base body with flanges directed toward each other, which grip under the beaded edge of the can. One of the flanges is elastically deflectable, the other flange is formed rigid, such that the closure device can be pressed onto the can from above like a snap-on-cap. A sealing ring is guided at the base body at the side disposed opposite to the pouring opening such that this sealing ring grips around the exit opening in a compressed state upon placing of the closure device onto the can, the sealing ring being disposed tightly at the cover of the can. Selected FIG. 4.
Inventors
- 👤 Walter Heubl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:49
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/28; B65D51/00; B65D51/007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
212 words
A closure device for cans having a beaded edge and a cover having a pouring opening formed by removal of a tear-off portion thereof, said closure device comprising: a unitary synthetic resin elongated planar body having a length at least as great as the diameter of said can; an edge web formed at one end of said body and having a curvature equal to the curvature of said beaded edge, said edge web being formed with an inwardly projecting flange for gripping the underside of said beaded edge; a tensioning element formed at the other end of said body opposite said edge web and spaced therefrom at a distance substantially equal to the diameter of said beaded edge, said tensioning element having a formation adapted to engage the underside of said beaded edge and being deflectable for releasing same; a flat extension formed on said body beyond said tensioning element and projecting over said edge of said can; a pair of rigid formations on said body spaced to either side of said tension element and engaging the outer periphery of said beaded edge to cause tension between said rigid formations and said first mentioned edge web; and a seal mounted on said body and adapted to engage said cover around said opening.
Claim 2
Dependent Claim
212 words
A closure device for cans having a beaded edge and a cover having a pouring opening formed by removal of a tear-off portion thereof, said closure device comprising: a unitary synthetic resin elongated planar body having a length at least as great as the diameter of said can; an edge web formed at one end of said body and having a curvature equal to the curvature of said beaded edge, said edge web being formed with an inwardly projecting flange for gripping the underside of said beaded edge; a tensioning element formed at the other end of said body opposite said edge web and spaced therefrom at a distance substantially equal to the diameter of said beaded edge, said tensioning element having a formation adapted to engage the underside of said beaded edge and being deflectable for releasing same; a flat extension formed on said body beyond said tensioning element and projecting over said edge of said can; a pair of rigid formations on said body spaced to either side of said tension element and engaging the outer periphery of said beaded edge to cause tension between said rigid formations and said first mentioned edge web; and a seal mounted on said body and adapted to engage said cover around said opening.
Claim 3
Dependent Claim
48 words
The device defined in claim 1 wherein said tensioning element is a second edge web having a curvature equal to the curvature of said beaded edge and said formation is a second inwardly projecting flange formed on said second edge web, said second edge web being elastically deflectable.
Claim 4
Dependent Claim
69 words
The device defined in claim 1 or 2, further comprising a pouring spout formed on said body, said pouring spout having a pouring channel for communicating with said pouring opening and means also communicating with said pouring opening for allowing the exchange of air between the interior and exterior of said can, said pouring spout being further provided with means for closing said channel and said first mentioned means.
Claim 5
Dependent Claim
36 words
The device defined in claim 1 or 2, further comprising a projecting wall formed on said body in a substantially oval outline surrounding said pouring opening and said seal is a ring supported at said wall.
Claim 6
Dependent Claim
58 words
The device defined in claim 4 wherein said pouring opening is substantially triangular and said ring is supported at the inner face of said wall and said wall is further formed with a shoulder disposed between said ring and said body along the base side of said opening for imparting increased pressure to said ring in that region.
Claim 7
Dependent Claim
29 words
The device defined in claim 4, further comprising a tensioning cover connectable to said body and disposed within said ring engaging same to clamp said ring against said wall.
Claim 8
Dependent Claim
26 words
The device defined in claim 6 wherein said tensioning cover is formed with a plurality of blade-shaped protrusions along the periphery thereof, said protrusions engaging said
Claim 9
Dependent Claim
62 words
The device defined in claim 3 wherein said first mentioned means includes a pocket connectable to said body and extending into the interior of said can and lying along a generatrix of said pouring channel, said pocket having a first opening facing away from said channel in said can and a second opening smaller than said first opening communicating with said channel.
Claim 10
Dependent Claim
24 words
The device defined in claim 1 wherein said tensioning element is radially displaceable on said body and said formation is an inwardly projecting hook.
Claim 11
Dependent Claim
49 words
The device defined in claim 9, further comprising means on said tensioning element for camming said hook against the underside of said beaded edge, and a plurality of corrugations formed on said body and coacting with said tensioning element for maintaining same in a radial position on said body.
Claim 12
Dependent Claim
56 words
The device defined in claim 1 wherein said tensioning element is a lever pivotally mounted on said body and said formation is at least one short arm of said lever adapted to engage the underside of said beaded edge when a long arm of said lever is tilted past a dead-center point formed by said pivot.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |