US4484751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankcase housing cover with sealing means
Assignee: SKF Sealing Solutions GmbH
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Filing: 1984-02-13
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Granted: 1984-11-27
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Expires: 2004-02-13
Abstract
Abstract A housing cover for closing and sealing an opening of a housing from which a shaft-like member projects, comprises a main body having an aperture through which the shaft-like member is adapted to pass, a first elastomer seal vulcanized to the main body about the aperture for sealingly cooperating with the shaft-like member, a second elastomer seal vulcanized to the main body at a distance from and in a different plane than the first elastomer seal for sealingly cooperating with the housing and elastomer sealing elements connecting the first and second elastomer seals with one another.
Inventors
- 👤 Hans Deuring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:30
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; F02; F02F; F02F11/00; F02F11/007; B; B29; B29L; B29L2031/00; B29L2031/26
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
A housing cover for closing and sealing an opening of a housing from which a shaft-like member projects, comprising (a) a main body; (b) means for defining, in said main body, an aperture through which the shaft-like member is adapted to pass; (c) a first elastomer seal vulcanized to said main body about said aperture for sealingly cooperating with the shaft-like member; (d) a second elastomer seal vulcanized to said main body at a distance from, and in a different plane than said first elastomer seal for sealingly cooperating with the housing; and (e) elastomer sealing elements connecting said first and second elastomer seals with one another.
Claim 2
Dependent Claim
107 words
A housing cover for closing and sealing an opening of a housing from which a shaft-like member projects, comprising (a) a main body; (b) means for defining, in said main body, an aperture through which the shaft-like member is adapted to pass; (c) a first elastomer seal vulcanized to said main body about said aperture for sealingly cooperating with the shaft-like member; (d) a second elastomer seal vulcanized to said main body at a distance from, and in a different plane than said first elastomer seal for sealingly cooperating with the housing; and (e) elastomer sealing elements connecting said first and second elastomer seals with one another.
Claim 3
Dependent Claim
32 words
A housing cover as defined in claim 1, wherein said main body comprises a radially inwardly directed annular projection surrounding said aperture; said first elastomer seal being vulcanized to said annular projection.
Claim 4
Dependent Claim
20 words
A housing cover as defined in claim 1, wherein said first and second elastomer seals are of different elastomer materials.
Claim 5
Dependent Claim
26 words
A housing cover as defined in claim 1, further comprising means defining grooves in said main body; said elastomer sealing elements being situated in said grooves.
Claim 6
Dependent Claim
23 words
A housing cover as defined in claim 4, wherein said grooves extend radially from said first elastomer seal to said second elastomer seal.
Claim 7
Dependent Claim
23 words
A housing cover as defined in claim 4, wherein said grooves extend axially from said first elastomer seal to said second elastomer seal.
Claim 8
Dependent Claim
16 words
A housing cover as defined in claim 4, wherein said grooves have a rectangular cross-sectional outline.
Claim 9
Dependent Claim
25 words
A housing cover as defined in claim 4, wherein each groove has a bottom; said bottom being partially covered by respective said elastomer sealing elements.
Claim 10
Dependent Claim
31 words
A housing cover as defined in claim 4, wherein each said groove has a volume approximately 30% greater than that of the respective said elastomer sealing elements in their unstressed state.
Claim 11
Dependent Claim
27 words
A housing cover as defined in claim 1, further comprising means defining a groove in said main body; said second elastomer seal being situated in said groove.
Claim 12
Dependent Claim
16 words
A housing cover as defined in claim 3, wherein said groove has a rectangular cross-sectional outline.
Claim 13
Dependent Claim
26 words
A housing cover as defined in claim 3, wherein said groove has a depth and said second elastomer seal has a height greater than said depth.
Claim 14
Dependent Claim
28 words
A housing cover as defined in claim 3, wherein said groove has a volume approximately 30% greater than that of said second elastomer seal in its unstressed state.
Claim 15
Dependent Claim
24 words
A housing cover as defined in claim 3, wherein said groove has a bottom; said bottom being partially covered by said second elastomer seal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |