US3926327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety and security closure
Assignee: ADOLF HOFMANN METALL- U KUNSTOFFWARENFABRIK GmbH
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Filing: 1975-01-23
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Granted: 1975-12-16
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Expires: 1995-01-23
Abstract
Abstract A safety closure for a receptacle, which closure has a ring surrounding the opening of the receptacle so as to be freely rotatable thereabout and prevented from moving axially thereof, and a cap screw threaded with the ring. Both the ring and the cap have a gripping surface, both of which surfaces must be gripped for turning the cap relative to the ring to open the receptacle. A sleeve covers the ring gripping surface and is removably, e.g. tearably attached to the cap.
Inventors
- 👤 Gerhard Schickedanz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:43
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/40; B65D41/00; B65D41/32; B65D41/34; B65D41/38; B65D2401/00; B65D2401/15; B65D2401/25
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
189 words
A safety closure for a receptacle having an access opening, comprising: a ring for surrounding the access opening, said ring having means for mounting it on the receptacle so as to be freely rotatable about said access opening and secured against freely moving off of the receptacle, said ring including a gripping surface positioned to be gripped during opening of the closure, a cap covering said access opening and in screw threaded engagement with said ring such that turning movement of the cap relative to the ring results in removal of the cap from the ring for opening the closure to expose the access opening, said cap also including a gripping surface positioned to be gripped during opening of the closure, and a sleeve, attaching means for removingly attaching the sleeve to the cap with the sleeve positioned to cover the gripping surface of the ring, whereby removal of the sleeve is necessary to expose the gripping surface of the ring, so that this gripping surface can be gripped along with that of the cap, to effect turning of the cap relative to the ring to open the closure.
Claim 2
Dependent Claim
189 words
A safety closure for a receptacle having an access opening, comprising: a ring for surrounding the access opening, said ring having means for mounting it on the receptacle so as to be freely rotatable about said access opening and secured against freely moving off of the receptacle, said ring including a gripping surface positioned to be gripped during opening of the closure, a cap covering said access opening and in screw threaded engagement with said ring such that turning movement of the cap relative to the ring results in removal of the cap from the ring for opening the closure to expose the access opening, said cap also including a gripping surface positioned to be gripped during opening of the closure, and a sleeve, attaching means for removingly attaching the sleeve to the cap with the sleeve positioned to cover the gripping surface of the ring, whereby removal of the sleeve is necessary to expose the gripping surface of the ring, so that this gripping surface can be gripped along with that of the cap, to effect turning of the cap relative to the ring to open the closure.
Claim 3
Dependent Claim
38 words
A safety closure according to claim 1, said attaching means comprising a tearable connection between the cap and the sleeve, such that one can remove the sleeve from the cap by gripping it and tearing it away therefrom.
Claim 4
Dependent Claim
31 words
A safety closure according to claim 2, said tearable connection comprising a plurality of narrow lands spaced apart about the cap and providing the connection of the cap to the sleeve.
Claim 5
Dependent Claim
24 words
A safety closure according to claim 3, said sleeve being split at at least one location so as to provide a grasping means therefor.
Claim 6
Dependent Claim
15 words
A safety closure according to claim 4, said sleeve being bent outwardly at said split.
Claim 7
Dependent Claim
20 words
A safety closure according to claim 2, said sleeve being formed out of plastic in one piece with the cap.
Claim 8
Dependent Claim
26 words
A safety closure according to claim 1, said sleeve positioned to constitute an axial extension of the wall of the receptacle on which it is mounted.
Claim 9
Dependent Claim
31 words
A safety closure according to claim 1, said sleeve constructed to extend outwardly over the ring to adjacent the edge of the wall of the receptacle on which it is mounted.
Claim 10
Dependent Claim
18 words
A safety closure according to claim 1, said sleeve being formed as a lower extension of the cap.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |