US3243016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined hydraulic and mechanical brake
Assignee: ZF Active Safety US Inc
•
Filing: 1964-06-25
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Granted: 1966-03-29
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Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:13
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2265; F16D55/227; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D2121/00; F16D2121/02; F16D2121/14; F16D2123/00; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/34; F16D2125/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A WHEEL BRAKE OF THE CLASS DESCRIBED COMPRISING, A BRAKE DISK ROTATABLE WITH THE WHEEL, A STATIONARY TORQUE MEMBER, A PAIR OF BRAKE SHOE SUPPORTED BY SAID TORQUE MEMBER FOR MOVEMENT TOWARD AND AWAY FROM SAID BRAKE DISK, A FORCE TRANSMITTING MEMBER SUPPORTED ON SAID TORQUE MEMBER AND ENGAGEABLE WITH ONE OF SAID BRAKE SHOES TO ACTUATE THE SAME, SUBSTANTIALLY HOLLOW BRAKE ACTUATING PISTON CARRIED BY SAID FORCE TRANSMITTING MEMBER TO ACTUATE THE OTHER OF SAID BRAKE SHOES AND THROUGH SAID FORCE TRANSMITTING MEMBER TO ACTUATE SAID FIRST MEMTIONED BRAKE SHOE, A TWO PART ADJUSTABLE EXTENSIBLE SLEEVE MEMBER LOCATED WITHIN SAID PISTON AND HAVING A THRUST TRANSMITTING ENGAGEMENT THEREWITH, CAM MEANS FOR MOVING SAID SLEEVE MEMBER TO ACTUATE SAID PISTON, SAID CAM MEANS INCLUDING A ROTATABLE SHAFT EXTENDING INTO SAID SLEEVE MEMBER, AND MEANS FOR ADJUSTING THE LENGTH OF SAID SLEEVE MEMBER TO COMPENSATE FOR WEAR ON THE BRAKE SHOE LININGS COMPRISING, A PAWL AND RATCHET CONNECTION BETWEEN SAID SHAFT AND ONE OF SAID SLEEVE MEMBERS TO ROTATE THE LATTER TO ADJUST SAID SLEEVE MEMBER TO MOVE SAID PISTON TOWARD SAID BRAKE DISK.
Claim 2
Dependent Claim
183 words
A WHEEL BRAKE OF THE CLASS DESCRIBED COMPRISING, A BRAKE DISK ROTATABLE WITH THE WHEEL, A STATIONARY TORQUE MEMBER, A PAIR OF BRAKE SHOE SUPPORTED BY SAID TORQUE MEMBER FOR MOVEMENT TOWARD AND AWAY FROM SAID BRAKE DISK, A FORCE TRANSMITTING MEMBER SUPPORTED ON SAID TORQUE MEMBER AND ENGAGEABLE WITH ONE OF SAID BRAKE SHOES TO ACTUATE THE SAME, SUBSTANTIALLY HOLLOW BRAKE ACTUATING PISTON CARRIED BY SAID FORCE TRANSMITTING MEMBER TO ACTUATE THE OTHER OF SAID BRAKE SHOES AND THROUGH SAID FORCE TRANSMITTING MEMBER TO ACTUATE SAID FIRST MEMTIONED BRAKE SHOE, A TWO PART ADJUSTABLE EXTENSIBLE SLEEVE MEMBER LOCATED WITHIN SAID PISTON AND HAVING A THRUST TRANSMITTING ENGAGEMENT THEREWITH, CAM MEANS FOR MOVING SAID SLEEVE MEMBER TO ACTUATE SAID PISTON, SAID CAM MEANS INCLUDING A ROTATABLE SHAFT EXTENDING INTO SAID SLEEVE MEMBER, AND MEANS FOR ADJUSTING THE LENGTH OF SAID SLEEVE MEMBER TO COMPENSATE FOR WEAR ON THE BRAKE SHOE LININGS COMPRISING, A PAWL AND RATCHET CONNECTION BETWEEN SAID SHAFT AND ONE OF SAID SLEEVE MEMBERS TO ROTATE THE LATTER TO ADJUST SAID SLEEVE MEMBER TO MOVE SAID PISTON TOWARD SAID BRAKE DISK.
References Cited (Backward Citations)
GB799577A
Cited
US2820530A
Cited
US2966964A
Cited
US2949173A
Cited
FR1279344A
Cited
US3155195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |