US3194353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fail-safe hydraulic pressure brake apparatus for motor vehicles
Assignee: Individual
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Filing: 1962-10-02
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Granted: 1965-07-13
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Expires: 1982-10-02
Abstract
No abstract record available.
Inventors
- 👤 Richard M Rick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/16; F16D51/18; B; B60; B60T; B60T11/00; B60T11/10; B60T13/00; B60T13/10; B60T13/12; B60T13/22; F16D65/00; F16D65/02; F16D65/04; F16D65/08; F16D65/09; F16D65/091; F16D65/14; F16D65/16; F16D65/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A WHEEL BRAKE COMPRISING A FIXED SUPPORTING PLATE, A ROTARY BRAKE DRUM WITH A BRAKE DRUM FLANGE, A BRAKE SHOE INSIDE THE DRUM HAVINGA CURVED BRAKING SURFACE CONFRONTING THE INSIDE OF THE DRUM FLANGE, SAID SHOE HAVING A WEB PORTION WITH AN OPENING THEREIN, A CAM FITTED IN THE OPENING, A LEVER ON WHICH THE CAM IS FIXED, A FLUID PRESSURE PISTON AND CYLINDER ON THE SUPPORTING PLATE FOR MOVING THE LEVER IN ONE DIRECTION, SAID BRAKE SHOE WEB ALSO HAVING A SLOT THEREIN DIAGONAL TO THE RADIUS OF CURVATURE OF THE SHOE AND SPACED FROM SAID CAM, AND A PIN ON THE SUPPORTING PLATE ENGAGED IN SAID SLOT FOR GUIDING THE MOVEMENT OF THE SHOE TOWARD AND AWAY FROM THE BRAKE DRUM FLANGE.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |