US4265455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: SKF Nova AB
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Filing: 1978-11-14
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Granted: 1981-05-05
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Expires: 1998-11-14
Abstract
Abstract The invention concerns a sealing device and is characterized by comprising an outer T-shaped supporting ring (5) and an inner U-shaped supporting ring (7), at least one sealing element (12, 13) preferably having flocked fibres being arranged between the outer and inner supporting ring.
Inventors
- 👤 Bengt Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:19
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3284; F16J15/3288; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/80; F16J15/44; F16J15/447; F16J15/4472; F16J15/4474; F16C19/00; F16C19/02; F16C19/04; F16C19/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
A seal for sealing the annular space between confronting annular surfaces in inner and outer machine members which are rotatable relative to one another comprising an outer annular support ring of generally T-shaped cross section, the cross bar of the outer annular support ring engaging in the annular surface of said outer machine member, a pair of side ring members of L-shaped cross section which are nested and secured together to form a U-shaped annular ring mounted on the confronting surface of said inner machine member which circumscribes and encloses substantially the entire body portion of said outer annular support ring, a pair of disc-like sealing members in the annular space between the sidewalls of said U-shaped annular ring members and the shank of said outer annular support ring including flexible air permeable sealing elements filling the space between the shank of said outer support ring and the opposing spaced legs of the inner annular member, said inner and outer supporting rings together with said sealing means forming an integral unit and said seal being symmetrical through a transverse center plane.
Claim 2
Dependent Claim
181 words
A seal for sealing the annular space between confronting annular surfaces in inner and outer machine members which are rotatable relative to one another comprising an outer annular support ring of generally T-shaped cross section, the cross bar of the outer annular support ring engaging in the annular surface of said outer machine member, a pair of side ring members of L-shaped cross section which are nested and secured together to form a U-shaped annular ring mounted on the confronting surface of said inner machine member which circumscribes and encloses substantially the entire body portion of said outer annular support ring, a pair of disc-like sealing members in the annular space between the sidewalls of said U-shaped annular ring members and the shank of said outer annular support ring including flexible air permeable sealing elements filling the space between the shank of said outer support ring and the opposing spaced legs of the inner annular member, said inner and outer supporting rings together with said sealing means forming an integral unit and said seal being symmetrical through a transverse center plane.
Claim 3
Dependent Claim
16 words
A sealing device as claimed in claim 1 wherein said disc-like sealing members are flocked rings.
Claim 4
Dependent Claim
15 words
A seal as claimed in claim 1 wherein said disc-like sealing members are felt rings.
References Cited (Backward Citations)
US885032A
Cited
US2590422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |