Patent US3877558A successfully refreshed from Google Patents.
US3877558A
Expired / Lapsed
US
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Clutch release bearing assembly
Assignee: Koyo Seiko Co Ltd
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Filing: 1973-01-23
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Granted: 1975-04-15
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Expires: 1993-01-23
Abstract
Abstract A clutch release bearing assembly including an inner race ring, an outer race ring, and balls interposed between the two rings. The inner race ring is extended axially in one direction along a retainer on which the bearing slides back and forth. An annular flange member is fixed to the end of the extended portion of the inner race ring for serving as a clutch release fork engaging member and as a water-proof and dust-proof protector.
Inventors
- 👤 Nariaki Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:13
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/12; F16D23/14; F16D23/148
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
145 words
A clutch release bearing assembly disposed about a shaft for axial movement along said shaft, said assembly comprising: an outer race ring having a first side; an inner race ring having an inner surface disposed directly about said shaft, an outer surface, and an extension of said inner race ring extending axially away from said firt side to an end; a flange member spaced apart from said shaft fixed to said inner race ring extension end, said flange member having an irregular shape including a cylindrical portion extending along said inner race extension outer surface from said inner race end, a portion extending radially inwardly from said cylindrical portion along said inner race end, and a portion extending radially outwardly to a free edge from said cylindrical portion opposite said race end; and, a plurality of balls interposed between said inner and outer race rings.
Claim 2
Dependent Claim
145 words
A clutch release bearing assembly disposed about a shaft for axial movement along said shaft, said assembly comprising: an outer race ring having a first side; an inner race ring having an inner surface disposed directly about said shaft, an outer surface, and an extension of said inner race ring extending axially away from said firt side to an end; a flange member spaced apart from said shaft fixed to said inner race ring extension end, said flange member having an irregular shape including a cylindrical portion extending along said inner race extension outer surface from said inner race end, a portion extending radially inwardly from said cylindrical portion along said inner race end, and a portion extending radially outwardly to a free edge from said cylindrical portion opposite said race end; and, a plurality of balls interposed between said inner and outer race rings.
Claim 3
Dependent Claim
22 words
The bearing assembly in accordance with claim 1, further comprising an annular flange extending radially inwardly from said outer race first side.
Claim 4
Dependent Claim
37 words
The bearing assembly in accordance with claim 2 further comprising a cover having a cylindrical portion overlying said outer race ring and a portion extending radially inwardly from the cover opposite the outer race ring first side.
Claim 5
Dependent Claim
29 words
The bearing assembly in accordance with claim 3 wherein said flange member further comprises a second cylindrical portion extending toward said outer race firt side from said free edge.
Claim 6
Dependent Claim
23 words
The bearing assembly in accordance with claim 1, further comprising an extension of said outer race ring extending axially opposite said first side.
Claim 7
Dependent Claim
26 words
The bearing assembly in accordance with claim 5, further comprising seal members extending between and closing the annular space between the inner and outer race rings.
References Cited (Backward Citations)
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |