US3719398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiskid brake control
Assignee: Sharp Corp
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Filing: 1970-12-08
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Granted: 1973-03-06
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Expires: 1990-12-08
Abstract
Abstract THIS INVENTION RELATES TO A METHOD AND AN APPARATUS FOR THE CONTROL OF ANTISKID HYDRAULIC BRAKE PRESSURE BY SENSING BOTH THE HYDRAULIC PRESSURE BEING APPLIED TO WHEEL CYLINDER MEANS OF AT LEAST A VEHICLE WHEEL AND THE WHEEL ANGULAR ROTATIONAL SPEED DECELERATION CAUSED THEREBY IN THE WHEEL(S) FOR THE PURPOSE OF SENSING AN IMPENDING WHEEL LOCK. THE IMPROVEMENT COMPRISES A STEP FOR INTENTIONALLY VARYING THE SENSITIITY FOR SENSING THE WHELL SPEED DECELERATION DEPENDING UPON THE APPLIED HYDRAULIC BRAKE CYLINDER PRESSURE.
Inventors
- 👤 K Takayama
- 👤 K Nishida
- 👤 H Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:53
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/58; B60T8/17; B60T8/176; B60T8/1761; B60T8/17613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |