US4418115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction lining
Assignee: Valeo SE
•
Filing: 1981-08-25
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Granted: 1983-11-29
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Expires: 2001-08-25
Abstract
Abstract The invention relates to a friction lining material, for use in brakes, clutches and other applications. The friction lining according to the invention contains mineral fibres, organic fibres, fillers and a binder. The organic fibres are at least partially composed of organic fibres of the crosslinkable fusible type, such as acrylic and/or modacrylic fibres. The lining formed in this way has excellent rubbing performance and wear resistance.
Inventors
- 👤 Michel Le Lannou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D69/026; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/213; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/2918; Y10T428/292; Y10T442/00; Y10T442/20; Y10T442/2344
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
A friction lining containing mineral fibers, organic fibers, fillers and a binder, wherein said organic fibers are all of the initially fusible type but cross-linkable to form a protective crust under the heating conditions of service.
Claim 2
Dependent Claim
36 words
A friction lining containing mineral fibers, organic fibers, fillers and a binder, wherein said organic fibers are all of the initially fusible type but cross-linkable to form a protective crust under the heating conditions of service.
Claim 3
Dependent Claim
29 words
A friction lining according to claim 1, wherein the proportion by weight of the organic fibres of the fusible type in the friction lining is between 5% and 40%.
Claim 4
Dependent Claim
21 words
A friction lining according to claim 1, wherein the organic fibres of the crosslinkable fusible type are acrylic and/or modacrylic fibres.
Claim 5
Dependent Claim
43 words
A friction lining according to claim 1, wherein the lining contains a proportion by weight of 5 to 30% of mineral fibres, 5 to 40% of organic fibres of the fusible type, 30 to 60% of fillers, and 10 to 25% of binder.
Claim 6
Dependent Claim
45 words
A friction lining according to claim 1 wherein the mineral fibres are glass and/or asbestos fibres, the fillers totally or partially comprise sulphur, carbon black, graphite, barium sulphate, Meudon white, pyrites, zircon, copper and brass, and the binder totally or partially comprises resin and rubber.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |