Patent US5128213A successfully refreshed from Google Patents.
US5128213A
Expired / Lapsed
US
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Sliding material of single substance and composite sliding material
Assignee: Daido Metal Co Ltd
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Filing: 1991-09-20
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Granted: 1992-07-07
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Expires: 2011-09-20
Abstract
Abstract A sliding material of a single substance made by extruding powder comprises aluminum as a main constituent, and at least one metal compound of 0.5 to 30 wt. % in total selected from the group consisting of metal nitride, metal carbide, metal phosphide, and metal boride, each of which has a hardness not less than 200 in Vicker's hardness, the metal compound being uniformly and finely dispersed in aluminum.
Inventors
- 👤 Tadashi Tanaka
- 👤 Masaaki Sakamoto
- 👤 Koichi Yamamoto
- 👤 Yoshiaki Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:21
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; C; C22; C22C; C22C21/00; C22C21/003; B; B22; B22F; B22F3/00; B22F3/20; C22C32/00; C22C32/001; C22C32/0015; C22C32/0036; C22C32/0084; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
A sliding material of a single substance made by extruding powder, comprising aluminum as a main constituent, and at least one metal compound of 0.5 to 30 wt. % in total selected from the group consisting of metal nitride, metal carbide, metal phosphide, and metal boride each of which has a hardness not less than 200 in Vicker's hardness, said metal compound being uniformly and finely dispersed in aluminum.
Claim 2
Dependent Claim
69 words
A sliding material of a single substance made by extruding powder, comprising aluminum as a main constituent, and at least one metal compound of 0.5 to 30 wt. % in total selected from the group consisting of metal nitride, metal carbide, metal phosphide, and metal boride each of which has a hardness not less than 200 in Vicker's hardness, said metal compound being uniformly and finely dispersed in aluminum.
Claim 3
Dependent Claim
29 words
The sliding material of a single substance as claimed in claim 1, further comprising a lubricant material of low-melting point metal of 0.1 to 20 wt. % in total.
Claim 4
Dependent Claim
26 words
The sliding material of a single substance as claimed in claim 1, further comprising a solid lubricant material of 0.1 to 20 wt. % in total.
Claim 5
Dependent Claim
42 words
The sliding material of a single substance as claimed in claim 1, further comprising a lubricant material of low-melting point metal of 0.1 to 20 wt. % in total and a solid lubricant material of 0.1 to 20 wt. % in total.
Claim 6
Dependent Claim
26 words
The sliding material of a single substance as claimed in claim 1, further comprising an aluminum matrix-strengthening material of 0.1 to 20 wt. % in total.
Claim 7
Dependent Claim
21 words
A composite sliding material, wherein the sliding material set forth in claim 1 is bonded to a back metal of steel.
Claim 8
Dependent Claim
25 words
The composite sliding material, wherein a bonding layer is provided between the sliding material set forth in claim 1 and the back metal of steel.
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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) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |