US3604178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock for preserve cans and other containers and a method of making it
Assignee: Ardagh Metal Packaging Germany GmbH
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Filing: 1969-01-30
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Granted: 1971-09-14
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Expires: 1989-01-30
Abstract
Abstract A lock for package containers, for example, preserve cans and tins, has a closed elastic cordlike ring located between the edge of the container and the edge of the cover and serving simultaneously for sealing and opening. To open the container, the ring is pulled by a strap carried by the ring out of the passage between the cover and the body of the container. The lock is particularly characterized in that this ring is brought into the sealing space formed between the edges of the container and cover in a liquid or plastic state and is hardened on location.
Inventors
- 👤 Hans-Joachim Bluhm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:06
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/46; B21D51/383; B65; B65D; B65D17/00; B65D17/42; B65D17/46; B65D17/462
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A process of making a lock for a container having an outer roll-shaped top and a cover having curved edges, said process comprising placing said cover over said container top, whereby an annular space is formed between the roll-shaped top and the curved edges of the cover, inverting the assembled container and cover, pouring a sealing mass into said annular space in a liquid or plastic state, introducing a pulling strap into the liquid sealing mass, allowing said sealing mass to harden to form a sealing and opening ring for the container top and thereupon bending the edges of the cover toward the container to form a narrow annular passage between the bent edges of the cover and the adjacent surfaces of the container.
Claim 2
Dependent Claim
124 words
A process of making a lock for a container having an outer roll-shaped top and a cover having curved edges, said process comprising placing said cover over said container top, whereby an annular space is formed between the roll-shaped top and the curved edges of the cover, inverting the assembled container and cover, pouring a sealing mass into said annular space in a liquid or plastic state, introducing a pulling strap into the liquid sealing mass, allowing said sealing mass to harden to form a sealing and opening ring for the container top and thereupon bending the edges of the cover toward the container to form a narrow annular passage between the bent edges of the cover and the adjacent surfaces of the container.
References Cited (Backward Citations)
US1369919A
Cited
FR1184970A
Cited
US3224627A
Cited
US3184096A
Cited
US3235121A
Cited
US3445262A
Cited
US3460709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |