US3628688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure member for a container
Assignee: Platmanufaktur AB
•
Filing: 1970-05-26
•
Granted: 1971-12-21
•
Expires: 1990-05-26
Abstract
Abstract A closure for a container such as a can has a flat ring adapted to be secured along its outer edge to the rim of the container and a circular disc filling the opening of the ring except for a continuous narrow slot defined by the inner and outer peripheral outlines of the ring and the disc, respectively. Strips of an elastic plastic disposed on opposite sides of the ring and the disc cover the slot along its length and overlie the adjacent marginal portions of the ring and the disc. The strips are joined by a continuous neck portion extending through the slot thereby holding the disc in position and sealing it to the ring. Upon stripping of the upper strip the disc is exposed for removal, the remaining lower strip providing a smooth lining for the inner rim of the ring.
Inventors
- 👤 Nils Olof Haggard
- 👤 Bertil Sven Oskar Murne
- 👤 Kjell Mosvoll Jakobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:31
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14336; B29C45/14344; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/4011; B29C2045/1486; B29C2045/14942
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
228 words
A closure member for an open container, said closure member comprising: an outer flat member having a central opening, said member being adapted to be secured along its peripheral edge to the rim defining a container opening; a flat insert member substantially centered with reference to said opening and disposed in a plane substantially parallel with the plane of said flat member, the inner peripheral outline of the outer member and the peripheral outline of the insert defining a continuous slot therebetween, one side of said members constituting the top side and the other the inward side of said closure member; and a sealing means made of an elastic plastic material disposed on opposite sides of said members, said sealing means covering the length of said slot and overlying adjacent marginal portions of said members, the sealing means being secured at least to the inward side of the outer member and including a frangible neck portion extending through said slot thereby joining the plastic material forming the sealing means on opposite sides of said members, stripping of the plastic material on the top side of the closure member and rupturing said neck portion by such stripping exposing the insert member for removal while the plastic material on the inward side of the members remains adhered to the outer member thereby lining the inner peripheral outline of said member.
Claim 2
Dependent Claim
228 words
A closure member for an open container, said closure member comprising: an outer flat member having a central opening, said member being adapted to be secured along its peripheral edge to the rim defining a container opening; a flat insert member substantially centered with reference to said opening and disposed in a plane substantially parallel with the plane of said flat member, the inner peripheral outline of the outer member and the peripheral outline of the insert defining a continuous slot therebetween, one side of said members constituting the top side and the other the inward side of said closure member; and a sealing means made of an elastic plastic material disposed on opposite sides of said members, said sealing means covering the length of said slot and overlying adjacent marginal portions of said members, the sealing means being secured at least to the inward side of the outer member and including a frangible neck portion extending through said slot thereby joining the plastic material forming the sealing means on opposite sides of said members, stripping of the plastic material on the top side of the closure member and rupturing said neck portion by such stripping exposing the insert member for removal while the plastic material on the inward side of the members remains adhered to the outer member thereby lining the inner peripheral outline of said member.
Claim 3
Dependent Claim
25 words
The closure member according to claim 1 wherein the plane of said insert member is displaced with reference to the plane of the outer member.
Claim 4
Dependent Claim
31 words
The closure member according to claim 1 wherein said marginal portion of the outer member has several spaced apart holes therethrough, the plastic material of the sealing means filling said holes.
Claim 5
Dependent Claim
37 words
The closure member according to claim 1 wherein a grip is secured to the sealing means on the top side of the closure member for stripping the plastic material on the top side by pulling said grip.
Claim 6
Dependent Claim
69 words
The closure member according to claim 1 wherein said outer member is in the form of a flat ring and said insert is in the form of a circular disc, and wherein said sealing means are in the form of two annular strips joined through the slot by said neck portion, each of said strips having a flat side abutting against surface portions of said ring and said disc.
References Cited (Backward Citations)
US3184096A
Cited
US3473692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |