Patent US3302981A successfully refreshed from Google Patents.
US3302981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake proportioning system
Assignee: Bendix Corp
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Filing: 1966-02-17
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Granted: 1967-02-07
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Stanley I Macduff
- 👤 Ward C Suttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A BRAKING SYSTEM FOR A VEHICLE HAVING FRONT AND REAR WHEEL BRAKING MEANS, THE COMBINATION OF PRESSURE GENERATING MEANS FOR APPLYING A BRAKING PRESSURE TO SAID FRONT AND REAR BRAKING MEANS, REGULATING MEANS OPERATIVELY CONNECTED TO SAID PRESSURE GENERATING MEANS FOR VARYING THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS, AND MEANS FOR AUTOMATICALLY AND CONTINUOUSLY SENSING THE DECELERATION OF THE VEHICLE DURING APPLICATION OF SAID BRAKING PRESSURE AND CAUSING SAID REGULATING MEANS TO VARY THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS AS A FUNCTION OF SAID DECELERATION OF THE VEHICLE, SAID LAST NAMED MEANS COMPRISING A SERVOMECHANISM OPERATIVELY CONNECTED TO SAID REGULATING MEANS FOR MODIFYING THE ACTION THEREOF, AN ACCELEROMETER FOR CONTINUOUSLY MEASURING THE DECELERATION OF THE VEHICLE, AND FUNCTION GENERATING MEANS OPERATIVELY CONNECTED TO SAID ACCELEROMETER AND SAID SERVOMECHANISM FOR RECEIVING INPUTS FROM SAID ACCELEROMETER AND PROGRAMMING OUTPUTS TO SAID SERVOMECHANISM SO AS TO CONTROL THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS IN ACCORDANCE WITH PREDETERMINED IDEAL BRAKING REQUIREMENTS.
Claim 2
Dependent Claim
176 words
IN A BRAKING SYSTEM FOR A VEHICLE HAVING FRONT AND REAR WHEEL BRAKING MEANS, THE COMBINATION OF PRESSURE GENERATING MEANS FOR APPLYING A BRAKING PRESSURE TO SAID FRONT AND REAR BRAKING MEANS, REGULATING MEANS OPERATIVELY CONNECTED TO SAID PRESSURE GENERATING MEANS FOR VARYING THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS, AND MEANS FOR AUTOMATICALLY AND CONTINUOUSLY SENSING THE DECELERATION OF THE VEHICLE DURING APPLICATION OF SAID BRAKING PRESSURE AND CAUSING SAID REGULATING MEANS TO VARY THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS AS A FUNCTION OF SAID DECELERATION OF THE VEHICLE, SAID LAST NAMED MEANS COMPRISING A SERVOMECHANISM OPERATIVELY CONNECTED TO SAID REGULATING MEANS FOR MODIFYING THE ACTION THEREOF, AN ACCELEROMETER FOR CONTINUOUSLY MEASURING THE DECELERATION OF THE VEHICLE, AND FUNCTION GENERATING MEANS OPERATIVELY CONNECTED TO SAID ACCELEROMETER AND SAID SERVOMECHANISM FOR RECEIVING INPUTS FROM SAID ACCELEROMETER AND PROGRAMMING OUTPUTS TO SAID SERVOMECHANISM SO AS TO CONTROL THE BRAKING PRESSURE RATIO BETWEEN SAID FRONT AND REAR WHEEL BRAKING MEANS IN ACCORDANCE WITH PREDETERMINED IDEAL BRAKING REQUIREMENTS.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |