Patent US3180694A successfully refreshed from Google Patents.
US3180694A
Expired / Lapsed
US
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Automatic load control braking system for motor vehicles
Assignee: ZF Active Safety US Inc
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Filing: 1961-08-29
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Granted: 1965-04-27
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Expires: 1981-08-29
Abstract
No abstract record available.
Inventors
- 👤 Stelzer William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:36
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/18; B60T8/1887
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A BRAKING SYSTEM FOR A MOTOR VEHICLE HAVING A BODY AND AXLE CONSTITUTING RELATIVELY MOVABLE VEHICLE PARTS AND HAVING A SET OF BRAKES PROVIDED WITH FLUID PRESSURE OPERATED ACTUATORS, A FLUID LINE FOR SUPPLYING FLUID PRESSURE TO SAID ACTUATORS, A FLUID PRESSURE REGULATOR, A SOURCE OF PRESSURE CONNECTED TO SAID PRESSURE REGULATOR, PEDAL OPERABLE MEANS FOR OPERATING SAID PRESSURE REGULATOR TO SUPPLY PRESSURE FROM SAID SOURCE TO SAID FLUID LINE, AUTOMATIC MEANS FOR ADJUSTING SAID PRESSURE REGULATOR TO DETERMINE THE PRESSURE SUPPLY FROM SAID SOURCE TO SAID FLUID LINE IN ACCORDANCE WITH RELATIVE MOVEMENT BETWEEN SAID BODY PARTS INCIDENT TO CHANGES IN THE STATIC LOADS ON THE VEHICLE, AND MEANS RENDERED OPERATIVE BY A PART OF SAID AUTOMATIC MEANS FOR RENDERING SAID AUTOMATIC MEANS INSENSITIVE TO RELATIVE MOVEMENT BETWEEN SAID VEHICLE PARTS WHEN THE VEHICLE IS MOVING.
Claim 2
Dependent Claim
137 words
A BRAKING SYSTEM FOR A MOTOR VEHICLE HAVING A BODY AND AXLE CONSTITUTING RELATIVELY MOVABLE VEHICLE PARTS AND HAVING A SET OF BRAKES PROVIDED WITH FLUID PRESSURE OPERATED ACTUATORS, A FLUID LINE FOR SUPPLYING FLUID PRESSURE TO SAID ACTUATORS, A FLUID PRESSURE REGULATOR, A SOURCE OF PRESSURE CONNECTED TO SAID PRESSURE REGULATOR, PEDAL OPERABLE MEANS FOR OPERATING SAID PRESSURE REGULATOR TO SUPPLY PRESSURE FROM SAID SOURCE TO SAID FLUID LINE, AUTOMATIC MEANS FOR ADJUSTING SAID PRESSURE REGULATOR TO DETERMINE THE PRESSURE SUPPLY FROM SAID SOURCE TO SAID FLUID LINE IN ACCORDANCE WITH RELATIVE MOVEMENT BETWEEN SAID BODY PARTS INCIDENT TO CHANGES IN THE STATIC LOADS ON THE VEHICLE, AND MEANS RENDERED OPERATIVE BY A PART OF SAID AUTOMATIC MEANS FOR RENDERING SAID AUTOMATIC MEANS INSENSITIVE TO RELATIVE MOVEMENT BETWEEN SAID VEHICLE PARTS WHEN THE VEHICLE IS MOVING.
References Cited (Backward Citations)
US2344868A
Cited
GB750444A
Cited
US2919161A
Cited
US3011833A
Cited
US3010768A
Cited
US3018136A
Cited
US3059976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |