US3243017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operable disc brakes for motor vehicles
Assignee: Motors Liquidation Co
•
Filing: 1964-07-02
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Granted: 1966-03-29
•
Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 Kleinstuck Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:54
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D65/0974; F16D65/0977; F16D55/00; F16D55/02; F16D55/22; F16D55/228; F16D65/14; F16D65/16; F16D65/18; F16D2121/00; F16D2121/02; F16D2127/00; F16D2127/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A HYDRAULICALLY OPERABLE DISC BRAKE COMPRISING: A ROTARY BRAKE DISC, A FIXED BRAKE CALIPER EMBRACING PART OF SAID BRAKE DISC, ACTUATOR CYLINDER MEANS DISPOSED WITHIN SAID BRAKE CALIPER AND HAVING ACTUATOR PISTON MEANS SLIDABLY MOUNTED THEREIN FOR MOVEMENT SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF ROTATION OF SAID BRAKE DISC, A PAIR OF BRAKE SHOE SUPPORT MEMBERS HAVING BRAKE SHOES CARRIED THEREON AND MOVABLE BY SAID ACTUATOR PISTON MEANS INTO ENGAGEMENT WITH OPPOSITE SIDES OF SAID BRAKE DISC, RETRACTIVE FORCE-EXERTING AND RETRACTIVE FORCE-LIMITING MEANS RETRACTING SAID ACTUATOR PISTON MEANS AND LIMITING THE RETRACTIVE MOVEMENT THEREOF UPON HYDRAULIC RELEASE OF SAID ACTUATOR PISTON MEANS,
Claim 2
Dependent Claim
102 words
A HYDRAULICALLY OPERABLE DISC BRAKE COMPRISING: A ROTARY BRAKE DISC, A FIXED BRAKE CALIPER EMBRACING PART OF SAID BRAKE DISC, ACTUATOR CYLINDER MEANS DISPOSED WITHIN SAID BRAKE CALIPER AND HAVING ACTUATOR PISTON MEANS SLIDABLY MOUNTED THEREIN FOR MOVEMENT SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF ROTATION OF SAID BRAKE DISC, A PAIR OF BRAKE SHOE SUPPORT MEMBERS HAVING BRAKE SHOES CARRIED THEREON AND MOVABLE BY SAID ACTUATOR PISTON MEANS INTO ENGAGEMENT WITH OPPOSITE SIDES OF SAID BRAKE DISC, RETRACTIVE FORCE-EXERTING AND RETRACTIVE FORCE-LIMITING MEANS RETRACTING SAID ACTUATOR PISTON MEANS AND LIMITING THE RETRACTIVE MOVEMENT THEREOF UPON HYDRAULIC RELEASE OF SAID ACTUATOR PISTON MEANS,
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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) | 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 |