Patent US3154178A successfully refreshed from Google Patents.
US3154178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic slack adjuster
Assignee: Rockwell-Standard Corp
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Filing: 1962-06-01
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Granted: 1964-10-27
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Bryan E House
- 👤 James C Cumming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:15
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN AUTOMATIC SLACK ADJUSTER FOR A VEHICLE BRAKE MECHANISM COMPRISING A CAM SHAFT HAVING AN INITIAL BRAKE RELEASED POSITION MOUNTED FOR ROCKING MOVEMENT ABOUT ITS AXIS, A LEVER ROTATABLY MOUNTED ON SAID SHAFT AND HAVING AN INITIAL POSITION, MEANS PROVIDING A CAM SHAFT ROCKING DRIVE CONNECTION BETWEEN THE LEVER AND SAID SHAFT WHICH IS ALWAYS SUBSTANTIALLY POSITIVE WHEN THE LEVER IS MOVED IN THE BRAKE APPLYING DIRECTION AND WHICH IS RELEASABLE UPON ENCOUNTERING RESISTANCE OF A PREDETERMINED TORQUE WHEN THE LEVER IS MOVED IN THE BRAKE RELEASE DIRECTION, MEANS FOR SELECTIVELY MOVING SAID LEVER IN BRAKE APPLYING OR BRAKE RELEASE DIRECTIONS, COUPLING MEANS IN SAID DRIVE CONNECTION AUTOMATICALLY EFFECTIVE WHEN SAID LEVER HAS BEEN MOVED THROUGH MORE THAN A PREDETERMINED ANGULAR DISTANCE IN THE BRAKE APPLYING DIRECTION AND RELEASED FOR RETURN MOVEMENT FOR ARRESTING RETURN ROCKING MOVEMENT OF SAID CAM SHAFT WHILE PERMITTING SAID RETURN MOVEMENT OF SAID LEVER TO ITS SAID INITIAL POSITION, RETURN MOVEMENT OF SAID LEVER TO ITS SAID INITIAL POSITION, AND COOPERATING MEANS ON SAID LEVER AND SAID COUPLING MEANS ENCLOSING SAID DRIVE CONNECTION.
Claim 2
Dependent Claim
178 words
AN AUTOMATIC SLACK ADJUSTER FOR A VEHICLE BRAKE MECHANISM COMPRISING A CAM SHAFT HAVING AN INITIAL BRAKE RELEASED POSITION MOUNTED FOR ROCKING MOVEMENT ABOUT ITS AXIS, A LEVER ROTATABLY MOUNTED ON SAID SHAFT AND HAVING AN INITIAL POSITION, MEANS PROVIDING A CAM SHAFT ROCKING DRIVE CONNECTION BETWEEN THE LEVER AND SAID SHAFT WHICH IS ALWAYS SUBSTANTIALLY POSITIVE WHEN THE LEVER IS MOVED IN THE BRAKE APPLYING DIRECTION AND WHICH IS RELEASABLE UPON ENCOUNTERING RESISTANCE OF A PREDETERMINED TORQUE WHEN THE LEVER IS MOVED IN THE BRAKE RELEASE DIRECTION, MEANS FOR SELECTIVELY MOVING SAID LEVER IN BRAKE APPLYING OR BRAKE RELEASE DIRECTIONS, COUPLING MEANS IN SAID DRIVE CONNECTION AUTOMATICALLY EFFECTIVE WHEN SAID LEVER HAS BEEN MOVED THROUGH MORE THAN A PREDETERMINED ANGULAR DISTANCE IN THE BRAKE APPLYING DIRECTION AND RELEASED FOR RETURN MOVEMENT FOR ARRESTING RETURN ROCKING MOVEMENT OF SAID CAM SHAFT WHILE PERMITTING SAID RETURN MOVEMENT OF SAID LEVER TO ITS SAID INITIAL POSITION, RETURN MOVEMENT OF SAID LEVER TO ITS SAID INITIAL POSITION, AND COOPERATING MEANS ON SAID LEVER AND SAID COUPLING MEANS ENCLOSING SAID DRIVE CONNECTION.
References Cited (Backward Citations)
US2109284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |