Patent US3885658A successfully refreshed from Google Patents.
US3885658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for mounting clutch release bearings
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1973-10-11
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Granted: 1975-05-27
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Expires: 1993-10-11
Abstract
Abstract Combination of a clutch release bearing and a clutch release lever mechanism. The axial frontal surface of the rotatable race member is curved. The clutch release mechanism has at least one lever, the end of which engages the curved frontal surface of the race member. The end of the lever is curved to conform to the race member, one of the radii of curvature being larger than the other exerting a radial force acting to center the bearing with respect to the lever mechanism.
Inventors
- 👤 Horst Ernst
- 👤 Manfred Brandenstein
- 👤 Armin Olschewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:46
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/12; F16D23/14; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/581; F16C33/588; F16D23/143; F16C19/00; F16C19/02; F16C19/14; F16C19/16; F16C19/163; F16C2361/00; F16C2361/43
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
105 words
The combination of a clutch release bearing and a clutch release lever mechanism, comprising an annular first race member, the axial frontal end of which has a curved surface, and a clutch release mechanism having at least one lever, the end of which engages said frontal surface of said first race member said end having a surface curved in cross section to conformingly mate with the frontal surface of said first race member, the radius of the curvature of one of said curved surface being larger than the other whereby a radial force is exerted to center the bearing with respect to the lever mechanism.
Claim 2
Dependent Claim
105 words
The combination of a clutch release bearing and a clutch release lever mechanism, comprising an annular first race member, the axial frontal end of which has a curved surface, and a clutch release mechanism having at least one lever, the end of which engages said frontal surface of said first race member said end having a surface curved in cross section to conformingly mate with the frontal surface of said first race member, the radius of the curvature of one of said curved surface being larger than the other whereby a radial force is exerted to center the bearing with respect to the lever mechanism.
Claim 3
Dependent Claim
75 words
The combination according to claim 1 wherein said bearing includes a second race member and a plurality of rollers or balls located between said races, said bearing being mountEd about a central sleeve and being radially movable with respect thereto, said release lever mechanism comprising an annular spring having a plurality of separate segments, the end of which engage the curved surfaces of said first bearing race member and are matched in radially opposing pairs.
Claim 4
Dependent Claim
33 words
The combination according to claim 1 wherein said frontal face of said bearing race member has a concave curvature and said end of said release lever has a convex curvature of smaller radius.
Claim 5
Dependent Claim
32 words
The combination according to claim 1 wherein said frontal face of said bearing race has a convex curvature and said end of said release lever has a concave curvature of larger radius.
Claim 6
Dependent Claim
27 words
The combination of claim 1 wherein said first race member is rotatable and said concave surface forms a groove for holding said race relative to said lever.
Claim 7
Dependent Claim
47 words
The combination according to claim 1 wherein said bearing and said release mechanism are freely mounted about central axes offset from each other by an amount equal to the amount necessary to move said bearing and release mechanism into centered position under the radial force component exerted.
References Cited (Backward Citations)
US1958725A
Cited
US3489256A
Cited
US3604545A
Cited
US3631954A
Cited
US3741361A
Cited
US3749217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |