Patent US2103851A successfully refreshed from Google Patents.
US4006809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-impregnated sintered clutch hub
Assignee: Nissan Motor Co Ltd
•
Filing: 1976-01-08
•
Granted: 1977-02-08
•
Expires: 1996-01-08
Abstract
Abstract An oil-impregnated sintered product having a resin-impregnated layer on the surface thereof for preventing oil contained therein from scattering therefrom when it moves at high speed. A method of producing the same comprising the steps of forming a seal layer on a sintered product, impregnating the sintered product with thermosetting resin, removing the seal layer, and impregnating the sintered product with oil.
Inventors
- 👤 Hiroshi Seino
- 👤 Norio Yamada
- 👤 Shigeo Kimura
- 👤 Hideaki Kosugi
- 👤 Koreyuki Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:48
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/103; B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/644
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A clutch hub of a sintered metal powder, comprising a cylinder with a splined axial bore and a generally disk-shaped extension extending radially from the outer surface of said cylinder, said cylinder having an oil-impregnated layer forming a portion of said cylinder contiguous to the inner surface thereof defining said splined bore and a resin-impregnated layer forming the remaining portion of said cylinder contiguous to the outer surfaces thereof and said oil-impregnated layer, said extension having a resin-impregnated layer forming a portion of said extension contiguous to the surfaces of extension; whereby a movement of oil, outward and away from said oil-impregnated layer, due to centrifugal forces caused by the rotation of said clutch hub is prevented.
Claim 2
Dependent Claim
117 words
A clutch hub of a sintered metal powder, comprising a cylinder with a splined axial bore and a generally disk-shaped extension extending radially from the outer surface of said cylinder, said cylinder having an oil-impregnated layer forming a portion of said cylinder contiguous to the inner surface thereof defining said splined bore and a resin-impregnated layer forming the remaining portion of said cylinder contiguous to the outer surfaces thereof and said oil-impregnated layer, said extension having a resin-impregnated layer forming a portion of said extension contiguous to the surfaces of extension; whereby a movement of oil, outward and away from said oil-impregnated layer, due to centrifugal forces caused by the rotation of said clutch hub is prevented.
Claim 3
Dependent Claim
40 words
A clutch hub as claimed in claim 1, wherein said extension further comprises an oil-impregnated layer forming the remaining portion of said extension and being contiguous to said oil-impregnated layer in said cylinder and said resin-impregnated layer in said extension.
Claim 4
Dependent Claim
38 words
A clutch hub as claimed in claim 1, wherein said resin-impregnated layers in said cylinder and said extension are impregnated with a thermosetting resin selected from the group consisting of phenol resins, diallayl phthalate resins and epoxy resins.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |