Patent US4798302A successfully refreshed from Google Patents.
US4798302A
Expired / Lapsed
US
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Closing device for a holder and diaphragm for such a device
Assignee: SKILLPACK BV PENNINGWEG 3 NL-4879 AE ETTEN-LEUR NETHERLANDS A Co OF NETHERLANDS
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Filing: 1988-03-28
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Granted: 1989-01-17
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Expires: 2008-03-28
Abstract
Abstract A deformable holder is safeguarded against visible implosion by a diaphragm between cover and holder. The space between diaphragm and cover is in contact with the atmosphere via passages between diaphragm and cover, while the holder is hermetically closed off from the outer air by the diaphragm.
Inventors
- 👤 Cornelis Killestijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:54
CPC Classifications
B; B65; B65D; B65D79/00; B65D79/005; B65D79/0087
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
Closing device (7, 37, 67) for closing a holder opening (6) comprising at least a cover (2, 32, 62) arranged over said opening (6) and a diaphragm (1, 31, 61) arranged between an edge (11) of said holder opening (6) and said cover (2, 32, 62), said diaphragm being essentially elastically and/or plastically deformable in its plane, and/or having a shape which in unloaded state deviates essentially from the flat form, whereby a space (15, 45) present between cover (2, 32, 62) and diaphragm (1, 31, 61) is in contact with the atmosphere via at least one passage (14, 60), characterized in that said diaphragm (1, 31, 61) has on the upper side of its edge (10, 57) at least one groove (14, 60) for placing said space (15) present between cover (2, 32, 62) and diaphragm (1, 31, 61) in contact with the atmosphere, and that present between holder (4, 34, 64) and cover (2, 32, 62) are active connecting means (5, 8, 68), each of which are releasable.
Claim 2
Dependent Claim
170 words
Closing device (7, 37, 67) for closing a holder opening (6) comprising at least a cover (2, 32, 62) arranged over said opening (6) and a diaphragm (1, 31, 61) arranged between an edge (11) of said holder opening (6) and said cover (2, 32, 62), said diaphragm being essentially elastically and/or plastically deformable in its plane, and/or having a shape which in unloaded state deviates essentially from the flat form, whereby a space (15, 45) present between cover (2, 32, 62) and diaphragm (1, 31, 61) is in contact with the atmosphere via at least one passage (14, 60), characterized in that said diaphragm (1, 31, 61) has on the upper side of its edge (10, 57) at least one groove (14, 60) for placing said space (15) present between cover (2, 32, 62) and diaphragm (1, 31, 61) in contact with the atmosphere, and that present between holder (4, 34, 64) and cover (2, 32, 62) are active connecting means (5, 8, 68), each of which are releasable.
Claim 3
Dependent Claim
59 words
Closing device (7, 37) as claimed in claim 1, characterized in that the diaphragm (1, 31, 61) has at least one groove (14) between diaphragm (1, 31) and a lip (46) which is arranged on the cover (2, 32) and which is close fitting on the opening edge of the holder (4), when said diaphragm (1, 31) is removed.
Claim 4
Dependent Claim
70 words
Closing device (67) as claimed in claim 1 or 2, characterized in that the cover (62) is manufactured of a stiff material, for example metal, that an air tight sealing is realized between the holder edge (63) and the underside of the edge (57) of the diaphragm (61), and that said diaphragm (61) is provided with coupling means (65, 70, 73) for coupling said diaphragm (61) with said cover (62).
Claim 5
Dependent Claim
27 words
Closing device (67) as claimed in claim 3, characterized in that the coupling means (65, 70, 73) are arranged on the outer periphery of the diaphragm (61).
Claim 6
Dependent Claim
42 words
Closing device (67) as claimed in any of the preceding claims, characterized in that the diaphragm (61) is provided on its outer periphery with downward hanging coupling means (70, 73) which co-operate for coupling with an edge (68) of the cover (62).
Claim 7
Dependent Claim
20 words
Closing device (67) as claimed in claim 5, characterized in that the coupling means consist of downward hanging fingers (73).
Claim 8
Dependent Claim
21 words
Diaphragm (1, 31, 61) evidently intended for a closing device (7, 37, 67) as claimed in any of the preceding claims.
References Cited (Backward Citations)
US2040798A
Cited
US4174784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |