US3301608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logic control type anti-skid system
Assignee: Motors Liquidation Co
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Filing: 1965-12-27
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Granted: 1967-01-31
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 John L Harned
- 👤 Frank H Highley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/42; B60T8/4208; B60T8/4225; B60T8/4241; B60T8/425; B60T8/17; B60T8/176; B60T8/1763; B60T8/17633; B60T8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN COMBINATION: A CLOSED LOOP ANTI-SKID SYSTEM COMPRISING VALVE MEANS ADAPTED FOR CONNECTION BETWEEN A MASTER CYLINDER AND A VEHICLE WHEEL BRAKE MOTOR, THE VALVE MEANS HAVING A NORMALLY OPEN FIGURATION; ELECTRICAL CURRENT RESPONSIVE CONTROL MEANS OPERATIVELY CONNECTED TO THE VALVE MEANS FOR CLOSING THE VALVE MEANS UPON RECEIPT OF CURRENT; A VOLTAGE GENERATOR DRIVABLY ENGAGEABLE WITH THE VEHICLE WHEEL FOR PRODUCING A VOLTAGE PROPORTIONAL TO THE ANGULAR VELOCITY THEREOF; CIRCUIT MEANS FOR DIFFERENTIATING SAID VOLTAGE THEREBY TO PRODUCE DECELERATION AND ACCELERATION VOLTAGES IN ACCORDANCE WITH THE RESPECTIVE CHANGES IN THE VELOCITY OF SAID WHEEL; SIGNAL GENERATING MEANS CONNECTED TO THE CIRCUIT MEANS FOR PRODUCING RESPECTIVE SIGNALS OF FIRST AND SECOND POLARITIES IN RESPONSE TO THE DECLERATION AND ACCELERATION SIGNALS RESPECTIVELY;
Claim 2
Dependent Claim
121 words
IN COMBINATION: A CLOSED LOOP ANTI-SKID SYSTEM COMPRISING VALVE MEANS ADAPTED FOR CONNECTION BETWEEN A MASTER CYLINDER AND A VEHICLE WHEEL BRAKE MOTOR, THE VALVE MEANS HAVING A NORMALLY OPEN FIGURATION; ELECTRICAL CURRENT RESPONSIVE CONTROL MEANS OPERATIVELY CONNECTED TO THE VALVE MEANS FOR CLOSING THE VALVE MEANS UPON RECEIPT OF CURRENT; A VOLTAGE GENERATOR DRIVABLY ENGAGEABLE WITH THE VEHICLE WHEEL FOR PRODUCING A VOLTAGE PROPORTIONAL TO THE ANGULAR VELOCITY THEREOF; CIRCUIT MEANS FOR DIFFERENTIATING SAID VOLTAGE THEREBY TO PRODUCE DECELERATION AND ACCELERATION VOLTAGES IN ACCORDANCE WITH THE RESPECTIVE CHANGES IN THE VELOCITY OF SAID WHEEL; SIGNAL GENERATING MEANS CONNECTED TO THE CIRCUIT MEANS FOR PRODUCING RESPECTIVE SIGNALS OF FIRST AND SECOND POLARITIES IN RESPONSE TO THE DECLERATION AND ACCELERATION SIGNALS RESPECTIVELY;
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |