Patent US3343632A successfully refreshed from Google Patents.
US3343632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adjusting disc brake
Assignee: Lambert Brake Corp
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Filing: 1965-07-12
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Granted: 1967-09-26
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Osborn A Kershner
- 👤 Virgil A Matrau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:05
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/04; F16D55/14; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
324 words
FRICTION DEVICE COMPRISING: FIRST AND SECOND RELATIVELY MOVABLE MEMBERS FOR ENERGIZING THE FRICTION DEVICE; ACTIVATING MEANS FOR RELETIVELY MOVING SAID MEMBERS IN ONE DIRECTION FROM A RETRACTED POSITION FOR ENERGIZING SAID FRICTION DEVICE; FIRST SPRING MEANS MOUNTED ON A FIRST SIDE OF SIAD FIRST AND SECOND MEMBERS AND INTERCONNECTING SAID FIRST AND SECOND MEMBERS FOR BIASING SAID MEMBERS FOR RELATIVE MOVEMENT IN A SECOND DIRECTION TOWARD THE RETRACTED POSITION; SECOND SPRING MEANS MOUNTED ON A SECOND SIDE OF SAID FIRST AND SECOND MEMBERS AND INTERCONNECTING SAID FIRST AND SECOND MEMBERS FOR FURTHER BIASING SAID MEMBERS FOR RELATIVE MOVEMENT IN THE SECOND DIRECTION TOWARD THE THE RETRACTED POSITION; AND WEAR COMPENSATION MEANS CONNECTED TO SAID FIRST AND SECOND MEMBERS, SAID WEAR COMPENSATION MEANS BEING RESPONSIVE TO THE RELATIVE MOVEMENT OF SAID MEMBERS IN THE ONE DIRECTION FROM THE RETRACTED POSITION FOR LIMITING RETURN MOVEMENT OF SAID MEMBERS IN THE SECOND DIRECTION AND THEREBY ADJUSTING THE RETRACTED POSITION TO COMPENSATE FOR WEAR IN THE FRICTION DEVICE, SAID WEAR COMPENSATION MEANS INCLUDING FIRST AND SECOND SCREW ELEMENTS EACH HAVING THE OUTER END PORTION THEREOF EXTENDING IN OPPOSITE DIRECTIONS AND RESPECTIVELY CONNECTED AT SAID OUTER END PORTIONS TO SAID FIRST AND SECOND MEMBERS AND HAVING THREAD CONVOLUTIONS OF OPPOSITE HANDS, AND NUT MEANS INCLUDING FIRST AND SECOND PORTIONS HAVING INTERNAL THREAD CONVOLUTIONS OF OPPOSITE HANDS RESPECTIVELY ENGAGING SAID FIRST AND SECOND SCREW ELEMENTS WITH SAID OUTER END PORTIONS DISPOSED TO PREVENT BINDING ACTION BETWEEN THE SCREW ELEMENTS AND THE NUT MEANS, SAID NUT MEANS BEING ROTATABLE RELATIVE TO AND AXIALLY ADJUSTABLE ALONG SAID SCREW ELEMENTS IN RESPONSE TO RELATIVE MOVEMENT OF SAID FIRST AND SECOND MEMBERS IN THE ONE DIRECTION, SAID FIRST AND SECOND SPRING MEANS HAVING PORTIONS ON OPPOSITE SIDES ON SAID NUT MEANS AGAINST REVERSE ROTATION AS SAID RESTRAINING SAID NUT MEANS AGAINST REVERSE ROTATION AS SAID FIRST AND SECOND SPRING MEANS URGE SAID FIRST AND SECOND MEMBERS IN THE SECOND DIRECTION TOWARD THE RETRACTED POSITION.
Claim 2
Dependent Claim
324 words
FRICTION DEVICE COMPRISING: FIRST AND SECOND RELATIVELY MOVABLE MEMBERS FOR ENERGIZING THE FRICTION DEVICE; ACTIVATING MEANS FOR RELETIVELY MOVING SAID MEMBERS IN ONE DIRECTION FROM A RETRACTED POSITION FOR ENERGIZING SAID FRICTION DEVICE; FIRST SPRING MEANS MOUNTED ON A FIRST SIDE OF SIAD FIRST AND SECOND MEMBERS AND INTERCONNECTING SAID FIRST AND SECOND MEMBERS FOR BIASING SAID MEMBERS FOR RELATIVE MOVEMENT IN A SECOND DIRECTION TOWARD THE RETRACTED POSITION; SECOND SPRING MEANS MOUNTED ON A SECOND SIDE OF SAID FIRST AND SECOND MEMBERS AND INTERCONNECTING SAID FIRST AND SECOND MEMBERS FOR FURTHER BIASING SAID MEMBERS FOR RELATIVE MOVEMENT IN THE SECOND DIRECTION TOWARD THE THE RETRACTED POSITION; AND WEAR COMPENSATION MEANS CONNECTED TO SAID FIRST AND SECOND MEMBERS, SAID WEAR COMPENSATION MEANS BEING RESPONSIVE TO THE RELATIVE MOVEMENT OF SAID MEMBERS IN THE ONE DIRECTION FROM THE RETRACTED POSITION FOR LIMITING RETURN MOVEMENT OF SAID MEMBERS IN THE SECOND DIRECTION AND THEREBY ADJUSTING THE RETRACTED POSITION TO COMPENSATE FOR WEAR IN THE FRICTION DEVICE, SAID WEAR COMPENSATION MEANS INCLUDING FIRST AND SECOND SCREW ELEMENTS EACH HAVING THE OUTER END PORTION THEREOF EXTENDING IN OPPOSITE DIRECTIONS AND RESPECTIVELY CONNECTED AT SAID OUTER END PORTIONS TO SAID FIRST AND SECOND MEMBERS AND HAVING THREAD CONVOLUTIONS OF OPPOSITE HANDS, AND NUT MEANS INCLUDING FIRST AND SECOND PORTIONS HAVING INTERNAL THREAD CONVOLUTIONS OF OPPOSITE HANDS RESPECTIVELY ENGAGING SAID FIRST AND SECOND SCREW ELEMENTS WITH SAID OUTER END PORTIONS DISPOSED TO PREVENT BINDING ACTION BETWEEN THE SCREW ELEMENTS AND THE NUT MEANS, SAID NUT MEANS BEING ROTATABLE RELATIVE TO AND AXIALLY ADJUSTABLE ALONG SAID SCREW ELEMENTS IN RESPONSE TO RELATIVE MOVEMENT OF SAID FIRST AND SECOND MEMBERS IN THE ONE DIRECTION, SAID FIRST AND SECOND SPRING MEANS HAVING PORTIONS ON OPPOSITE SIDES ON SAID NUT MEANS AGAINST REVERSE ROTATION AS SAID RESTRAINING SAID NUT MEANS AGAINST REVERSE ROTATION AS SAID FIRST AND SECOND SPRING MEANS URGE SAID FIRST AND SECOND MEMBERS IN THE SECOND DIRECTION TOWARD THE RETRACTED POSITION.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |