US3113647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake drum
Assignee: Motor Wheel Corp
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Filing: 1961-11-09
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Granted: 1963-12-10
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Expires: 1981-11-09
Abstract
No abstract record available.
Inventors
- 👤 Elvin E Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; F16D69/00; F16D69/02; F16D2065/13; F16D2065/1304; F16D2065/132; F16D2065/1332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A BRAKE DRUM COMPRISING AN ANNULAR BODY INCLUDING A WALL HAVING ONE SURFACE SHAPED TO FORM A BRAKING SURFACE ADAPTED TO BE ENGAGED BY A BRAKE ELEMENT AND HAVING AN OPPOSITE SURFACE ADAPTED FOR TRANSFERRING HEAT FROM SAID WALL AND A WEAR LINER COMPRISING A LAYER OF A RANDOM MASS OF FIBERS OF HARD MATERIAL LOOSELY ENTANGLED WITH ONE ANOTHER IN A RELATIVELY OPEN NETWORK WHICH IS HIGHLY POROUS TO A BACKING MATERIAL WHEN SAID BACKING MATERIAL IS IN A MOLTEN STATE, SAID FIBERS BEING EMBEDDED IN SAID WALL ADJACENT TO AND SUBSTANTIALLY COEXTENSIVE WITH SAID BRAKING SURFACE THEREOF WITH RANDOM PORTIONS OF SAID FIBERS EXPOSED IN A RANDOM PATTERN AT SAID BRAKING SURFACE, SAID WALL COMPRISING A CONTINUOUS MASS OF SAID BACKING MATERIAL IN A SOLID STATE THERMALLY ENGAGING SAID WEAR LINER FIBRES BY SUBSTANTIALLY COMPLETE ENGULFMENT THEREOF AND COMPRISING THE MAJOR MATERIAL OF SAID WALL.
Claim 2
Dependent Claim
147 words
A BRAKE DRUM COMPRISING AN ANNULAR BODY INCLUDING A WALL HAVING ONE SURFACE SHAPED TO FORM A BRAKING SURFACE ADAPTED TO BE ENGAGED BY A BRAKE ELEMENT AND HAVING AN OPPOSITE SURFACE ADAPTED FOR TRANSFERRING HEAT FROM SAID WALL AND A WEAR LINER COMPRISING A LAYER OF A RANDOM MASS OF FIBERS OF HARD MATERIAL LOOSELY ENTANGLED WITH ONE ANOTHER IN A RELATIVELY OPEN NETWORK WHICH IS HIGHLY POROUS TO A BACKING MATERIAL WHEN SAID BACKING MATERIAL IS IN A MOLTEN STATE, SAID FIBERS BEING EMBEDDED IN SAID WALL ADJACENT TO AND SUBSTANTIALLY COEXTENSIVE WITH SAID BRAKING SURFACE THEREOF WITH RANDOM PORTIONS OF SAID FIBERS EXPOSED IN A RANDOM PATTERN AT SAID BRAKING SURFACE, SAID WALL COMPRISING A CONTINUOUS MASS OF SAID BACKING MATERIAL IN A SOLID STATE THERMALLY ENGAGING SAID WEAR LINER FIBRES BY SUBSTANTIALLY COMPLETE ENGULFMENT THEREOF AND COMPRISING THE MAJOR MATERIAL OF SAID WALL.
References Cited (Backward Citations)
US903049A
Cited
US1394402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |