US3269781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake anti-skid device
Assignee: Motors Liquidation Co
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Filing: 1964-08-24
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Granted: 1966-08-30
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Robert M Van House
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:22
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/42; B60T8/4208; B60T8/4225; B60T8/4241; B60T8/425; B60T8/4258; B60T8/40; B60T8/4095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A BRAKE CONTROL SYSTEM FOR A VEHICLE HAVING FRONT WHEELS AND REAR WHEELS AND HYDRAULIC PRESSURE ACTUATED BRAKES FOR SAID WHEELS AND MEANS FOR GENERATING HYDRAULIC PRESSURE AND FIRST HYDRAULIC CONDUIT MEANS CONNECTING SAID FRONT WHEEL BRAKES WITH SAID PRESSURE GENERATING MEANS AND SECOND HYDRAULIC CONDUIT MEANS CONNECTING SAID REAR WHEEL BRAKES WITH SAID PRESSURE GENERATING MEANS, SAID SYSTEM COMPRISING: A FIRST FLUID PRESSURE PUMP DRIVEN BY SAID FRONT WHEELS AND HAVING AN INTAKE AND AN OUTPUT; A SECOND FLUID PRESSURE PUMP DRIVEN BY SAID REAR WHEELS AND HAVING AN INTAKE AND AN OUTPUT; A FLUID RESERVOIR; FIRST CONDUITS MEANS FLUID INTERCONNECTING SAID FIRST PUMP INTAKE WITH SAID RESERVOIR AND SAID SECOND PUMP OUTPUT; SECOND CONDUIT MEANS FLUID INTERCONNECTING SAID FIRST PUMP OUTPUT AND SAID SECOND PUMP INTAKE; THIRD CONDUIT MEANS HAVING TWO PARALLEL FLOW BRANCHES INTERCONNECTED AT THE ENDS THEREOF TO FORM A DIRECTIONAL FLOW CONTROL PRESSURE LOOP THEREIN AND FLUID INTERCONNECTING SAID FIRST AND SECOND CONDUIT MEANS; A NORMALLY CLOSED, FLUID PRESSURE OPENED, CHECK VALVE IN EACH OF SAID FLOW BRANCHES ACTING TO PERMIT AND PREVENT FLUID FLOW UNDER PRESSURE IN OPPOSITE DIRECTIONS; FOURTH CONDUIT MEANS FLUID CONNECTED WITH SAID SECOND CONDUIT MEANS; HYDRAULIC PRESSURE CONTROL VALVE
Claim 2
Dependent Claim
199 words
A BRAKE CONTROL SYSTEM FOR A VEHICLE HAVING FRONT WHEELS AND REAR WHEELS AND HYDRAULIC PRESSURE ACTUATED BRAKES FOR SAID WHEELS AND MEANS FOR GENERATING HYDRAULIC PRESSURE AND FIRST HYDRAULIC CONDUIT MEANS CONNECTING SAID FRONT WHEEL BRAKES WITH SAID PRESSURE GENERATING MEANS AND SECOND HYDRAULIC CONDUIT MEANS CONNECTING SAID REAR WHEEL BRAKES WITH SAID PRESSURE GENERATING MEANS, SAID SYSTEM COMPRISING: A FIRST FLUID PRESSURE PUMP DRIVEN BY SAID FRONT WHEELS AND HAVING AN INTAKE AND AN OUTPUT; A SECOND FLUID PRESSURE PUMP DRIVEN BY SAID REAR WHEELS AND HAVING AN INTAKE AND AN OUTPUT; A FLUID RESERVOIR; FIRST CONDUITS MEANS FLUID INTERCONNECTING SAID FIRST PUMP INTAKE WITH SAID RESERVOIR AND SAID SECOND PUMP OUTPUT; SECOND CONDUIT MEANS FLUID INTERCONNECTING SAID FIRST PUMP OUTPUT AND SAID SECOND PUMP INTAKE; THIRD CONDUIT MEANS HAVING TWO PARALLEL FLOW BRANCHES INTERCONNECTED AT THE ENDS THEREOF TO FORM A DIRECTIONAL FLOW CONTROL PRESSURE LOOP THEREIN AND FLUID INTERCONNECTING SAID FIRST AND SECOND CONDUIT MEANS; A NORMALLY CLOSED, FLUID PRESSURE OPENED, CHECK VALVE IN EACH OF SAID FLOW BRANCHES ACTING TO PERMIT AND PREVENT FLUID FLOW UNDER PRESSURE IN OPPOSITE DIRECTIONS; FOURTH CONDUIT MEANS FLUID CONNECTED WITH SAID SECOND CONDUIT MEANS; HYDRAULIC PRESSURE CONTROL VALVE
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |