US2604425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced brake lining and method of making same
Assignee: Raybestos Manhattan Inc
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Filing: 1946-11-29
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Granted: 1952-07-22
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Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 Clyde S Batchelor
- 👤 Henry J Cofek
- 👤 Frederick S Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/025; F16D69/026; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/31504; Y10T428/31652; Y10T428/31656
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
A METHOD OF MAKING A HEAT HARDENED REINFORCED BRAKE LINING OF THE ARCUATE SEGMENTAL TYPE HAVING A LONGITUDINAL CONVEX AND CONCAVE FACE AND CONSTRUCTED OF A FRICTION MATERIAL HAVING A HEAT HARDENABLE BINDER WHICH SHRINKS AT HARDENING TEMPERATURES COMPRISING, EMBEDDING A REINFORCING MATERIAL IN SAID SEGMENT COMPRISING LONGITUDINAL PORTIONS AND PORTIONS DISPOSED TRANSVERSELY TO THE ARC OF THE SEGMENT AND ADJACENT THE CONCAVE FACE THEREOF, SAID TRANSVERSELY DISPOSED PORTIONS CONSISTING OF STRANDS HAVING CHARACTERISTICS OF PRODUCING SHRINKAGE STRESSES TRANSVERSELY OF THE SEGMENT ADJACENT THE CONCAVE FACE THEREOF AT THE HARDENING TEMPERATURES OF THE BINDER, AND HARDENING SAID FRICTION MATERIAL AT ELEVATED TEMPERATURES WITH SAID REINFORCING MATERIAL IN SITU.
Claim 2
Independent Claim
108 words
A METHOD OF MAKING A HEAT HARDENED REINFORCED BRAKE LINING OF THE ARCUATE SEGMENTAL TYPE HAVING A LONGITUDINAL CONVEX AND CONCAVE FACE AND CONSTRUCTED OF A FRICTION MATERIAL HAVING A HEAT HARDENABLE BINDER WHICH SHRINKS AT HARDENING TEMPERATURES COMPRISING, EMBEDDING A REINFORCING MATERIAL IN SAID SEGMENT COMPRISING LONGITUDINAL PORTIONS AND PORTIONS DISPOSED TRANSVERSELY TO THE ARC OF THE SEGMENT AND ADJACENT THE CONCAVE FACE THEREOF, SAID TRANSVERSELY DISPOSED PORTIONS CONSISTING OF STRANDS HAVING CHARACTERISTICS OF PRODUCING SHRINKAGE STRESSES TRANSVERSELY OF THE SEGMENT ADJACENT THE CONCAVE FACE THEREOF AT THE HARDENING TEMPERATURES OF THE BINDER, AND HARDENING SAID FRICTION MATERIAL AT ELEVATED TEMPERATURES WITH SAID REINFORCING MATERIAL IN SITU.
Claim 3
Dependent Claim
90 words
AN INTERMEDIATE PRODUCT IN THE MANUFACTURE OF AN ARCUATE SEGMENTAL BRAKE LINING HAVING A LONGITUDINAL CONVEX AND CONCAVE FACE WHICH COMPRISES HEAT HARDENABLE FRACTION MATERIAL WHICH SHRINKS AT HARDENING TEMPERATURES HAVING EMBEDDED IN THE CONCAVE FACE THEREOF A MESH REINFORCING MATERIAL CONSISTING OF CONTINUOUS LONGITUDINAL PORTIONS AND PORTIONS EXTENDING TRANSVERSELY TO THE ARC OF SAID SEGMENT, SAID TRANSVERSELY EXTENDING PORTIONS HAVING CHARACTERISTICS OF SHRINKAGE AT THE HARDENING TEMPERATURES OF THE FRICTION MATERIAL, AND BEING SO INITIALLY TENSIONED AS TO PRODUCE SHRINKAGE STRESSES UPON THE LINING WHEN THE BINDER IS HARDENED.
Claim 4
Dependent Claim
90 words
AN INTERMEDIATE PRODUCT IN THE MANUFACTURE OF AN ARCUATE SEGMENTAL BRAKE LINING HAVING A LONGITUDINAL CONVEX AND CONCAVE FACE WHICH COMPRISES HEAT HARDENABLE FRACTION MATERIAL WHICH SHRINKS AT HARDENING TEMPERATURES HAVING EMBEDDED IN THE CONCAVE FACE THEREOF A MESH REINFORCING MATERIAL CONSISTING OF CONTINUOUS LONGITUDINAL PORTIONS AND PORTIONS EXTENDING TRANSVERSELY TO THE ARC OF SAID SEGMENT, SAID TRANSVERSELY EXTENDING PORTIONS HAVING CHARACTERISTICS OF SHRINKAGE AT THE HARDENING TEMPERATURES OF THE FRICTION MATERIAL, AND BEING SO INITIALLY TENSIONED AS TO PRODUCE SHRINKAGE STRESSES UPON THE LINING WHEN THE BINDER IS HARDENED.
References Cited (Backward Citations)
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US2252554A
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US2245540A
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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) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |