US4051097A
Expired / Lapsed
US
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Carbon metallic friction composition
Assignee: Bendix Corp
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Filing: 1976-04-12
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Granted: 1977-09-27
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Expires: 1996-04-12
Abstract
Abstract A composition for an automobile brake lining having a substantially uniform coefficient of friction up to 1000 DEG F. The composition is primarily a mixture of metal or metal oxide particles, non-graphitic amorphous carbon particles, a thermosetting phenolic resin and an elastomer. At least five volume percent of the metal and non-graphitic amorphous carbon particles is in fiber form to provide structural stability to the composition upon curing the phenolic resin.
Inventors
- 👤 Francis William Aldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
C; C08; C08K; C08K3/00; F; F16; F16D; F16D69/00; F16D69/02; F16D69/025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
A composition for an automobile brake lining having a substantially uniform coefficient of friction upon frictional engagement with another member up to 740° F., said composition consisting of metal or metal oxide particles from 15-55 volume percent of the total composition, non-graphitic amorphous carbon particles from 10-75 volume percent of the total composition, an elastomer from 0-10 volume percent of the total composition and an organic resin from 15-35 volume percent of the total composition, said organic resin holding the metal or metal oxides, the non-graphic amorphous carbon particles and the elastomer together, said elastomer attenuating noise created by frictional engagement of the brake lining, said amorphous carbon and metal or metal oxide together forming the friction producing material to create said uniform coefficient of friction.
Claim 2
Dependent Claim
126 words
A composition for an automobile brake lining having a substantially uniform coefficient of friction upon frictional engagement with another member up to 740° F., said composition consisting of metal or metal oxide particles from 15-55 volume percent of the total composition, non-graphitic amorphous carbon particles from 10-75 volume percent of the total composition, an elastomer from 0-10 volume percent of the total composition and an organic resin from 15-35 volume percent of the total composition, said organic resin holding the metal or metal oxides, the non-graphic amorphous carbon particles and the elastomer together, said elastomer attenuating noise created by frictional engagement of the brake lining, said amorphous carbon and metal or metal oxide together forming the friction producing material to create said uniform coefficient of friction.
Claim 3
Dependent Claim
35 words
The composition as recited in claim 1 wherein said 15-55 volume percent of metal or metal oxide particles includes at least 5 volume percent of metal fiber to provide structural stability to the total composition.
Claim 4
Dependent Claim
16 words
The composition as recited in claim 2 wherein said organic resin is a thermosetting phenolic resin.
Claim 5
Dependent Claim
28 words
The composition as recited in claim 3 wherein said metal or metal oxide is selected from the group consisting of iron, copper, steel, iron oxide and mixtures thereof.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |