Patent US3729076A successfully refreshed from Google Patents.
US3729076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overrunning clutch
Assignee: SKF Compagnie dApplications Mecaniques SA
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Filing: 1971-06-03
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Granted: 1973-04-24
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Expires: 1991-06-03
Abstract
Abstract Overrunning clutch of the type comprising a plurality of cams positioned between the two facing concentric surfaces of a shaft and concentric external ring, said clutch comprising an annular cage having openings through which said cams project, said cams being smaller at one end than the other and said openings being large enough to pass the smaller end of a cam but too small to pass the larger end, and spring means engaging the smaller end of each cam and biassing it away from said cage toward one of said concentric surfaces.
Inventors
- 👤 Lavalette P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:17
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
Overrunning clutch of the type comprising a plurality of cams positioned between the two facing concentric surfaces of a shaft and concentric external ring, said clutch comprising an annular cage having openings through which said cams project, one end of each cam being smaller in section than the other in a plane parallel to the opening through which it projects, and said openings being large enough to pass the smaller end of a cam but too small to pass the larger end, and spring means engaging the smaller end of each cam and biassing it away from said cage toward one of said concentric surfaces.
Claim 2
Dependent Claim
105 words
Overrunning clutch of the type comprising a plurality of cams positioned between the two facing concentric surfaces of a shaft and concentric external ring, said clutch comprising an annular cage having openings through which said cams project, one end of each cam being smaller in section than the other in a plane parallel to the opening through which it projects, and said openings being large enough to pass the smaller end of a cam but too small to pass the larger end, and spring means engaging the smaller end of each cam and biassing it away from said cage toward one of said concentric surfaces.
Claim 3
Dependent Claim
40 words
Overrunning clutch as claimed in claim 1 in which each cam has two substantially cylindrical surfaces, each positioned to contact one of said concentric surfaces, and said spring means are coil springs encircling radial projections extending inwardly from said cage.
Claim 4
Dependent Claim
26 words
Clutch as claimed in claim 1 in which the openings in the cage are flanked by inwardly projecting flanges perpendicular to the axis of the cage.
Claim 5
Dependent Claim
27 words
Clutch as claimed in claim 1 in which said cage is formed with two outwardly projecting circumferentially spaced bosses for engaging the inner surface of said ring.
Claim 6
Dependent Claim
25 words
Clutch as claimed in claim 4 in which one of said bosses is split across its full width, transversely to the axis of the cage.
Claim 7
Dependent Claim
34 words
Clutch as claimed in claim 2 in which said radial projections are integral with said cage and the smaller ends of said cams are provided with transversely projecting abutments against which said springs bear.
Claim 8
Dependent Claim
13 words
Clutch as claimed in claim 6 in which said openings are substantially rectangular.
References Cited (Backward Citations)
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US2428962A
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US2630896A
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US2753027A
Cited
US3219163A
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US3651908A
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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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |