Patent US3985660A successfully refreshed from Google Patents.
US3985660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material displaying a low coefficient of friction and low wear at high load and speed
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1975-09-02
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Granted: 1976-10-12
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Expires: 1995-09-02
Abstract
Abstract Bearing materials having low coefficient of friction and high wear resistance comprise 50 to 90 percent by weight of a powdered solid lubricant bonded by a polymerized mixture of unsaturated organic compounds, containing at least 30% divinylbenzene. The solid lubricant is preferably MoS 2 or a mixture of MoS 2 and graphite. The binder is preferably polymerized technical divinylbenzene, a mixture of isomers.
Inventors
- 👤 Herman Lankamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C; C10; C10M; C10M7/00; F16N; F16N15/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/061; C10M2201/065; C10M2201/066; C10M2201/10; C10M2201/102; C10M2201/12; C10M2201/16; C10M2201/18; C10M2205/00; C10M2205/04; C10M2205/06; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10N; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
A bearing material having a low coefficient of friction and low wear at relatively high load, relatively high speed and relatively high temperature, comprising from 50 to 90 percent by weight of a powdered inorganic solid lubricant bonded by a polymerized mixture of unsaturated organic compounds containing at least 30% divinylbenzene and the remainder selected from the group consisting of styrene butadiene, and vinyl acetate.
Claim 2
Dependent Claim
65 words
A bearing material having a low coefficient of friction and low wear at relatively high load, relatively high speed and relatively high temperature, comprising from 50 to 90 percent by weight of a powdered inorganic solid lubricant bonded by a polymerized mixture of unsaturated organic compounds containing at least 30% divinylbenzene and the remainder selected from the group consisting of styrene butadiene, and vinyl acetate.
Claim 3
Dependent Claim
23 words
A material according to claim 1, in which the solid lubricant is a substance or a mixture of substances having a laminar structure.
Claim 4
Dependent Claim
18 words
A material according to claim 2, in which the solid lubricant is a chalkogenide, barium nitride or graphite.
Claim 5
Dependent Claim
15 words
A material according to claim 3, in which the solid lubricant is MoS 2 .
Claim 6
Dependent Claim
20 words
A material according to claim 1, in which the organic binder is polymerized technical divinylbenzene, containing at least 50% divinylbenzene.
Claim 7
Dependent Claim
15 words
A material according to claim 5, in which the solid lubricant is MoS 2 .
Claim 8
Dependent Claim
22 words
A material according to claim 6, in which the weight ratio of MoS 2 (microsize powder) and polymerized technical divinylbenzene is 75:25.
Claim 9
Dependent Claim
20 words
A material according to claim 3, in which the solid lubricant is a mixture of graphite and MoS 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |