US3309966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure hydraulic valve and fluid motor
Assignee: Motors Liquidation Co
•
Filing: 1964-06-11
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Granted: 1967-03-21
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jack T Cornillaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:29
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T17/00; B60T17/18; B60T17/22; B60T17/226; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87217; Y10T137/87225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A VEHICLE BRAKING SYSTEM HAVING A SINGLE ACTUATOR PEDAL AND TWO INDEPENDENT HYDRAULIC SYSTEMS, A CONTROL DEVICE COMPRISING: A CONTROL BODY; A CHAMBER EXTENDING THROUGH SAID CONTROL BODY; INLET MEANS FOR A FLUID MEDIUM INTO SAID CHAMBER; OUTLET MEANS FOR A FLUID MEDIUM FROM SAID CHAMBER DISPOSED IN FLUID COMMUNICATION WITH SAID INLET MEANS; PISTON MEANS SLIDABLY DISPOSED IN SAID CHAMBER AND BIASED INTO CENTERED DISPOSITION RELATIVE TO THE INLET MEANS; FLUID ENTRY MEANS INTO SAID CHAMBER PROVIDING AN EQUAL HYDRAULIC PRESSURE ON OPPOSITE ENDS OF SAID PISTON MEANS TO MAINTAIN SAID PISTON MEANS IN CENTERED DISPOSITION IN SAID CHAMBER, SAID PISTON MEANS BEING RESPONSIVE TO A PRESSURE DIFFERENTIAL BETWEEN ITS OPPOSITE ENDS TO MOVE SAID INLET MEANS OUT OF FLUID COMMUNICATION
Claim 2
Dependent Claim
123 words
IN A VEHICLE BRAKING SYSTEM HAVING A SINGLE ACTUATOR PEDAL AND TWO INDEPENDENT HYDRAULIC SYSTEMS, A CONTROL DEVICE COMPRISING: A CONTROL BODY; A CHAMBER EXTENDING THROUGH SAID CONTROL BODY; INLET MEANS FOR A FLUID MEDIUM INTO SAID CHAMBER; OUTLET MEANS FOR A FLUID MEDIUM FROM SAID CHAMBER DISPOSED IN FLUID COMMUNICATION WITH SAID INLET MEANS; PISTON MEANS SLIDABLY DISPOSED IN SAID CHAMBER AND BIASED INTO CENTERED DISPOSITION RELATIVE TO THE INLET MEANS; FLUID ENTRY MEANS INTO SAID CHAMBER PROVIDING AN EQUAL HYDRAULIC PRESSURE ON OPPOSITE ENDS OF SAID PISTON MEANS TO MAINTAIN SAID PISTON MEANS IN CENTERED DISPOSITION IN SAID CHAMBER, SAID PISTON MEANS BEING RESPONSIVE TO A PRESSURE DIFFERENTIAL BETWEEN ITS OPPOSITE ENDS TO MOVE SAID INLET MEANS OUT OF FLUID COMMUNICATION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |