US3250349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brake
Assignee: American Brake Shoe Co
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Filing: 1964-03-20
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Granted: 1966-05-10
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 John J Byrnes
- 👤 Jr Frank E Tayler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:53
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D65/00; F16D65/02; F16D65/12; F16D65/123; F16D2055/0004; F16D2055/0058; F16D2065/13; F16D2065/1304; F16D2065/132; F16D2065/134; F16D2065/1356; F16D2065/1368; F16D2065/1372; F16D2065/1392; F16D69/00; F16D2069/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A FRICTION COUPLED DISC ADAPED TO BE FRICTIONALLY ENGAGED AND TO BE INTERCONNECTED BYA KEY TO ANOTHER ELEMENT SAID FRICTION COUPLE DISC COMPRISING AN ANNULAR BODY MEMBER HAVING SURFACE WALLS ON SAID ANNULAR BODY MEMBER AT LEAST ONE OF WHICH IS FOR FRICTIONAL ENGAGING PURPOSES, AT LEAST ONE NOTCH SEAT MEANS FORMED IN SAID DISC TO RECEIVE THE KEY FOR INTER-CONNECTION TO SAID ANOTHER ELEMENT, SAID NOTCH SEAT MEANS INCLUDING A PAIR OF SPACED SIDE WALLS EXTENDING INTO SAID PERIPHERAL WALLS ON SAID ANNULAR BODY MEMBER, A BOTTOM WALL EXTENDING BETWEEN SAID SIDE WALLS, AND CLEARANCE SPACED DEFINED BY ARCUATE WALLS FORMED IN SAID SIDE WALLS AT THE JUNCTURE BETWEEN SAID SIDE WALLS AND SAID BOTTOM WALL AND EXTENDING ING INTO SAID SIDE WALLS SO AS TO BE SPACED CIRCUMFERENTIALLY A GREATER DISTANCE THAN THE ADJACENT SIDE WALLS TO PREVENT THE ENGAGEMENT OF A BOTTOM CORNER OF SAID KEY WITH SAID SIDE WALL.
Claim 2
Dependent Claim
153 words
A FRICTION COUPLED DISC ADAPED TO BE FRICTIONALLY ENGAGED AND TO BE INTERCONNECTED BYA KEY TO ANOTHER ELEMENT SAID FRICTION COUPLE DISC COMPRISING AN ANNULAR BODY MEMBER HAVING SURFACE WALLS ON SAID ANNULAR BODY MEMBER AT LEAST ONE OF WHICH IS FOR FRICTIONAL ENGAGING PURPOSES, AT LEAST ONE NOTCH SEAT MEANS FORMED IN SAID DISC TO RECEIVE THE KEY FOR INTER-CONNECTION TO SAID ANOTHER ELEMENT, SAID NOTCH SEAT MEANS INCLUDING A PAIR OF SPACED SIDE WALLS EXTENDING INTO SAID PERIPHERAL WALLS ON SAID ANNULAR BODY MEMBER, A BOTTOM WALL EXTENDING BETWEEN SAID SIDE WALLS, AND CLEARANCE SPACED DEFINED BY ARCUATE WALLS FORMED IN SAID SIDE WALLS AT THE JUNCTURE BETWEEN SAID SIDE WALLS AND SAID BOTTOM WALL AND EXTENDING ING INTO SAID SIDE WALLS SO AS TO BE SPACED CIRCUMFERENTIALLY A GREATER DISTANCE THAN THE ADJACENT SIDE WALLS TO PREVENT THE ENGAGEMENT OF A BOTTOM CORNER OF SAID KEY WITH SAID SIDE WALL.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |