Patent US3322471A successfully refreshed from Google Patents.
US3322471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-skid brake device
Assignee: Motors Liquidation Co
•
Filing: 1965-10-06
•
Granted: 1967-05-30
•
Expires: 1985-10-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Faiver
- 👤 Andrew K Watt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:10
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/72; B60T8/74; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/0989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A BRAKE ANTI-LOCK DEVICE FOR A VEHICLE HAVING FLUID ACTUATED WHEEL BRAKES, SAID DEVICE COMPRISING: A BRAKE MASTER CYLINDER FOR DEVELOPING A FLUID PRESSURE; BRAKE ACTUATION AND OUTPUT LINE THEREFOR; A FLUID PRESSURE SOURCE DRIVEN BY A VEHICLE ENGINE; FIRST VALVE MEANS DRIVEN ROTATIONALLY AT A SPEED PROPORTIONAL TO WHEEL ROTATION; SECOND VALVE MEANS INTERPOSED IN SAID OUTPUT LINE AND RESPONSIVE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE; A HOUSING HAVING PORTIONS THEREIN IN WHICH SAID FIRST AND SECOND VALVE MEANS ARE SLIDABLY DISPOSED; INLET MEANS IN SAID HOUSING FROM SAID BRAKE MASTER CYLINDER AND FROM SAID FLUID PRESSURE SOURCE; AND INERTIA MEANS ROTATABLY CARRIED BY SAID FIRST VALVE MEANS AND ARRANGED TO BE ROTATABLE AND SLIDABLE RELATIVE THERETO, SAID INERTIA MEANS BEING RESPOPNSIVE TO A PREDETERMINED CHANGE IN ROTATIONAL VELOCITY OF SAID FIRST VALVE MEANS TO REPOSITION SAID FIRST VALVE MEANS IN SAID HOUSING THEREBY COMMUNICATING PRESSURE FROM SAID FLUID PRESSURE SOURCE TO SAID SECOND VALVE MEANS TO SHUT OFF BRAKING TO AT LEAST ONE VEHICLE WHEEL, SAID INERTIA MEANS BEING RESPONSIVE TO VEHICLE DECELERATION TO SLIDE ON SAID FIRST VALVE MEANS TO MODIFY THE RESPONSE OF SAID INERTIA MEANS TO ROTATIONAL VELOCITY OF SAID FIRST VALVE MEANS.
Claim 2
Dependent Claim
199 words
A BRAKE ANTI-LOCK DEVICE FOR A VEHICLE HAVING FLUID ACTUATED WHEEL BRAKES, SAID DEVICE COMPRISING: A BRAKE MASTER CYLINDER FOR DEVELOPING A FLUID PRESSURE; BRAKE ACTUATION AND OUTPUT LINE THEREFOR; A FLUID PRESSURE SOURCE DRIVEN BY A VEHICLE ENGINE; FIRST VALVE MEANS DRIVEN ROTATIONALLY AT A SPEED PROPORTIONAL TO WHEEL ROTATION; SECOND VALVE MEANS INTERPOSED IN SAID OUTPUT LINE AND RESPONSIVE TO PRESSURE FROM SAID FLUID PRESSURE SOURCE; A HOUSING HAVING PORTIONS THEREIN IN WHICH SAID FIRST AND SECOND VALVE MEANS ARE SLIDABLY DISPOSED; INLET MEANS IN SAID HOUSING FROM SAID BRAKE MASTER CYLINDER AND FROM SAID FLUID PRESSURE SOURCE; AND INERTIA MEANS ROTATABLY CARRIED BY SAID FIRST VALVE MEANS AND ARRANGED TO BE ROTATABLE AND SLIDABLE RELATIVE THERETO, SAID INERTIA MEANS BEING RESPOPNSIVE TO A PREDETERMINED CHANGE IN ROTATIONAL VELOCITY OF SAID FIRST VALVE MEANS TO REPOSITION SAID FIRST VALVE MEANS IN SAID HOUSING THEREBY COMMUNICATING PRESSURE FROM SAID FLUID PRESSURE SOURCE TO SAID SECOND VALVE MEANS TO SHUT OFF BRAKING TO AT LEAST ONE VEHICLE WHEEL, SAID INERTIA MEANS BEING RESPONSIVE TO VEHICLE DECELERATION TO SLIDE ON SAID FIRST VALVE MEANS TO MODIFY THE RESPONSE OF SAID INERTIA MEANS TO ROTATIONAL VELOCITY OF SAID FIRST VALVE MEANS.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |