US4505987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding member
Assignee: Mitsuya Seiko Co Ltd
•
Filing: 1981-11-10
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Granted: 1985-03-19
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Expires: 2001-11-10
Abstract
Abstract A sliding member highly improved with lubricating performance, wear resistant property and strength has a thin steel sheet or plate and sintered metal layer deposited on the steel sheet, wherein the sintered metal layer, comprises copper as a main component incorporated with a certain amount of tin, nickel, phosphorus, graphite and, optionally, with iron, and a sliding member exhibiting excellent lubricating performance, wear resistant property and strength even under impact and heavy loads includes a thick steel sheet or plate with which thin steel sheet of the above-mentioned sliding member is integrally joined.
Inventors
- 👤 Shinji Yamada
- 👤 Saburo Hanafusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:16
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121; B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; B22F2998/00; B22F2998/10; F16C2220/00; F16C2220/20; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A multi-layered sliding member comprising a thin steel plate and a sintered metal layer secured on said thin steel plate, in which said sintered metal layer comprises 4 to 10 wt% of tin, 10 to 40 wt% of nickel, 0.5 to 4 wt% of phosphorus, 3 to 10 wt% of graphite and at least 36 wt% of copper.
Claim 2
Dependent Claim
58 words
A multi-layered sliding member comprising a thin steel plate and a sintered metal layer secured on said thin steel plate, in which said sintered metal layer comprises 4 to 10 wt% of tin, 10 to 40 wt% of nickel, 0.5 to 4 wt% of phosphorus, 3 to 10 wt% of graphite and at least 36 wt% of copper.
Claim 3
Dependent Claim
21 words
The multi-layered sliding member of claim 1, in which the sintered metal layer contains not more than 30 wt% of iron.
Claim 4
Dependent Claim
77 words
A multi-layered sliding member, in which one multi-layered steel plate is formed by securing, on a thin steel plate, a sintered metal layer comprising 4 to 10 wt% of tin, 10 to 40 wt% of nickel, 0.5 to 4 wt% of phosphorus, 3 to 10 wt% of graphite and at least 36 wt% of copper, and said one multi-layered steel plate is integrally joined with a further steel plate by way of a thin copper alloy plate.
Claim 5
Dependent Claim
77 words
A multi-layered sliding member, in which one multi-layered steel plate is formed by securing, on a thin steel plate, a sintered metal layer comprising 4 to 10 wt% of tin, 10 to 40 wt% of nickel, 0.5 to 4 wt% of phosphorus, 3 to 10 wt% of graphite and at least 36 wt% of copper, and said one multi-layered steel plate is integrally joined with a further steel plate by way of a thin copper alloy plate.
Claim 6
Dependent Claim
21 words
The multi-layered sliding member of claim 3, in which the sintered metal layer contains not more than 30 wt% of iron.
Claim 7
Dependent Claim
63 words
A multi-layered sliding member comprising a thin steel plate and a sintered metal layer secured on said thin steel plate, said sintered metal layer consisting essentially of 4 to 10% by weight of tin, 10 to 40% by weight of nickel, 0.5 to 4% by weight of phosphorus, 3 to 10% by weight of graphite, and at least 36% by weight of copper.
Claim 8
Dependent Claim
63 words
A multi-layered sliding member comprising a thin steel plate and a sintered metal layer secured on said thin steel plate, said sintered metal layer consisting essentially of 4 to 10% by weight of tin, 10 to 40% by weight of nickel, 0.5 to 4% by weight of phosphorus, 3 to 10% by weight of graphite, and at least 36% by weight of copper.
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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) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |