US3277982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-energizing disc brake
Assignee: Motors Liquidation Co
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Filing: 1964-11-23
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Granted: 1966-10-11
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Dan R Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/18; F16D2121/00; F16D2121/02; F16D2125/00; F16D2125/02; F16D2125/10; F16D2127/00; F16D2127/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
DISC BRAKE MECHANISM FOR A VEHICLE, SAID MECHANISM COMPRISING: A ROTATABLE DISC; SUPPORT MEANS CARRIED BY THE VEHICLE; FLUID PRESSURE SOURCE MEANS IN FLUID COMMUNICATION WITH SAID SUPPORT MEANS; A FIRST SERIES OF FRICTION ELEMENTS CARRIED BY SAID SUPPORT MEANS AND ENGAGEABLE WITH SAID ROTATABLE DISC IN RESPONSE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE MEANS; A SECOND SERIES OF FRICTION ELEMENTS CARRIED BY SAID SUPPORT MEANS AND ENGAGEABLE WITH SAID ROTATABLE DISC IN RESPONSE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE MEANS; FIRST MEANS CARRIED BY SAID SUPPORT MEANS IN FLUID COMMUNICATION WITH SAID FLUID PRESSURE SOURCE MEANS AND ADAPTED TO ISOLATE PRESSURE TO SAID SECOND SERIES OF FRICTION ELEMENTS FROM SAID FIRST SERIES OF FRICTION ELEMENTS; AND SECOND MEANS INCLUDING OPPOSED FORCE INDUCING MEANS, EACH OF SAID OPPOSED FORCE INDUCING MEANS BEING RESPONSIVE TO A SERVO ACTION GENERATED UNDER DIFFERENT OPERATING CONDITIONS TO INTENSIFY THE PRESSURE ON SAID SECOND SERIES OF FRICTION ELEMENTS.
Claim 2
Dependent Claim
155 words
DISC BRAKE MECHANISM FOR A VEHICLE, SAID MECHANISM COMPRISING: A ROTATABLE DISC; SUPPORT MEANS CARRIED BY THE VEHICLE; FLUID PRESSURE SOURCE MEANS IN FLUID COMMUNICATION WITH SAID SUPPORT MEANS; A FIRST SERIES OF FRICTION ELEMENTS CARRIED BY SAID SUPPORT MEANS AND ENGAGEABLE WITH SAID ROTATABLE DISC IN RESPONSE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE MEANS; A SECOND SERIES OF FRICTION ELEMENTS CARRIED BY SAID SUPPORT MEANS AND ENGAGEABLE WITH SAID ROTATABLE DISC IN RESPONSE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE MEANS; FIRST MEANS CARRIED BY SAID SUPPORT MEANS IN FLUID COMMUNICATION WITH SAID FLUID PRESSURE SOURCE MEANS AND ADAPTED TO ISOLATE PRESSURE TO SAID SECOND SERIES OF FRICTION ELEMENTS FROM SAID FIRST SERIES OF FRICTION ELEMENTS; AND SECOND MEANS INCLUDING OPPOSED FORCE INDUCING MEANS, EACH OF SAID OPPOSED FORCE INDUCING MEANS BEING RESPONSIVE TO A SERVO ACTION GENERATED UNDER DIFFERENT OPERATING CONDITIONS TO INTENSIFY THE PRESSURE ON SAID SECOND SERIES OF FRICTION ELEMENTS.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |