Patent JPS51185A successfully refreshed from Google Patents.
Patent US3342902A successfully refreshed from Google Patents.
US3382012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the prevention of skidding in a brake system
Assignee: Recherches Etudes Production REP SARL
•
Filing: 1966-05-18
•
Granted: 1968-05-07
•
Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 Lucien Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:14
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/17; B60T8/1701; B60T8/1703; B60T8/32; B60T8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A METHOD FOR CONTROLLING HYDRAULICALLY THE BRAKING MEMBERS OF A VEHICLE WITH PNEUMATIC-TIRED WHEELS, SAID METHOD COMPRISING APPLYING A BRAKING PRESSURE ON A BRAKE CONTROL MEMBER OF A MOVING VEHICLE, PRODUCING A FIRST ELECTRIC SIGNAL RELATED TO THE SPEED OF ROTATION OF A BRAKED WHEEL, RETAINING THIS FIRST SIGNAL IN A MEMORY, RECONSTITUTING THE SIGNAL INTO A SECOND ELECTRIC SIGNAL; PRODUCING A THIRD ELECTRICAL SIGNAL RELATED TO THE DEGREE OF BRAKING PRESSURE EFFECTED ON THE CONTROL MEMBER BY THE OPERATOR OF THE VEHICLE; FORMING A FOURTH ELECTRIC SIGNAL BY ADDING A FRACTION OF THE FIRST SIGNAL WITH THE SECOND SIGNAL; SUBTRACTING THE FOURTH SIGNAL FROM THE THIRD SIGNAL; ADDING THE FIRST SIGNAL TO THE DIFFERENCE BETWEEN THE FOURTH AND THIRD SIGNALS; ESTABLISHING A HYDRAULIC PRESSURE PROPORTIONAL TO THE LATTER SUM, AND APPLYING THIS PRESSURE TO THE BRAKING MEMBERS.
Claim 2
Independent Claim
138 words
A METHOD FOR CONTROLLING HYDRAULICALLY THE BRAKING MEMBERS OF A VEHICLE WITH PNEUMATIC-TIRED WHEELS, SAID METHOD COMPRISING APPLYING A BRAKING PRESSURE ON A BRAKE CONTROL MEMBER OF A MOVING VEHICLE, PRODUCING A FIRST ELECTRIC SIGNAL RELATED TO THE SPEED OF ROTATION OF A BRAKED WHEEL, RETAINING THIS FIRST SIGNAL IN A MEMORY, RECONSTITUTING THE SIGNAL INTO A SECOND ELECTRIC SIGNAL; PRODUCING A THIRD ELECTRICAL SIGNAL RELATED TO THE DEGREE OF BRAKING PRESSURE EFFECTED ON THE CONTROL MEMBER BY THE OPERATOR OF THE VEHICLE; FORMING A FOURTH ELECTRIC SIGNAL BY ADDING A FRACTION OF THE FIRST SIGNAL WITH THE SECOND SIGNAL; SUBTRACTING THE FOURTH SIGNAL FROM THE THIRD SIGNAL; ADDING THE FIRST SIGNAL TO THE DIFFERENCE BETWEEN THE FOURTH AND THIRD SIGNALS; ESTABLISHING A HYDRAULIC PRESSURE PROPORTIONAL TO THE LATTER SUM, AND APPLYING THIS PRESSURE TO THE BRAKING MEMBERS.
References Cited (Backward Citations)
US3131975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |