US3104174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction facing and process of manufacture
Assignee: Motors Liquidation Co
•
Filing: 1960-05-09
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Granted: 1963-09-17
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Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Donald E Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D69/026; F16D69/021; F16D69/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A FRICTION FACING FOR A WET CLUCTH AND THE LIKE AND ADAPTED TO BE COEXTENSITIVELY SUPPORTED UPON A STRONG BACKING PLATE OF SUITABLE DESIGN, SAID FACING CONSISTING OF A POROUS, FELTED MAT OF FIBROUS MATERIAL WHEREIN EACH OF THE FIBERS INCLUDES A FUAL COATING CONSISTING OF A WAX SHEATH CONTIGUOUS WITH THE SURFACE OF EACH FIBER AND A COEXTENSIVE OUTER LAYER OF A BONDING MATERIAL CONSISTING OF A THERMOSETTING RESIN, SAID WAX BEING TAKEN FROM THE CLASS CONSISTING OF WAXES MELTING ABOVE 120*F. AND BEING PRESENT IN QUANTITIES OF FROM ABOUT 1% TO 6% BY WEIGHT OF THE FIBROUS MATERIAL IN THE MAT, THE COEFFICIENT OF FRICTION OF SAID FACING BEING IN THE ORDER OF 10% HIGHER THAN A SIMILAR MATERIAL WITHOUT THE WAX.
Claim 2
Dependent Claim
124 words
A FRICTION FACING FOR A WET CLUCTH AND THE LIKE AND ADAPTED TO BE COEXTENSITIVELY SUPPORTED UPON A STRONG BACKING PLATE OF SUITABLE DESIGN, SAID FACING CONSISTING OF A POROUS, FELTED MAT OF FIBROUS MATERIAL WHEREIN EACH OF THE FIBERS INCLUDES A FUAL COATING CONSISTING OF A WAX SHEATH CONTIGUOUS WITH THE SURFACE OF EACH FIBER AND A COEXTENSIVE OUTER LAYER OF A BONDING MATERIAL CONSISTING OF A THERMOSETTING RESIN, SAID WAX BEING TAKEN FROM THE CLASS CONSISTING OF WAXES MELTING ABOVE 120*F. AND BEING PRESENT IN QUANTITIES OF FROM ABOUT 1% TO 6% BY WEIGHT OF THE FIBROUS MATERIAL IN THE MAT, THE COEFFICIENT OF FRICTION OF SAID FACING BEING IN THE ORDER OF 10% HIGHER THAN A SIMILAR MATERIAL WITHOUT THE WAX.
References Cited (Backward Citations)
CA471098A
Cited
US2733797A
Cited
US1493290A
Cited
US1785969A
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US1887981A
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US2553215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |