US3196618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure-operated braking apparatus
Assignee: Wabco Automotive UK Ltd
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Filing: 1964-03-12
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Granted: 1965-07-27
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Expires: 1984-03-12
Abstract
No abstract record available.
Inventors
- 👤 Farmery George Kenneth
- 👤 Page Wilbur Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:34
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/10; B60T11/00; B60T11/10; B60T11/16; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/246; B60T13/26; B60T13/40; B60T13/44; B60T13/46; B60T13/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A FLUID PRESSURE BRAKE OPERATING APPARATUS, AN ACTUATOR UNIT COMPRISING TWO COAXIAL CYLINDERS, A PISTON SLIDABLY MOUNTED IN EACH CYLINDER, AN OPERATING ROD SLIDABLY MOUNTED ON THE AXIS OF SAID CYLINDERS AND HAVING ONE END IN SEPARABLE ABUTMENT WITH ONE OF SAID PISTONS DISPOSED WITHIN ONE OF SAID CYLINDERS, RETURN SPRING MEANS BIASING SAID ROD INTO ABUTMENT WITH SAID ONE PISTON, THE OTHER OF SAID PISTONS DISPOSED IN THE OTHER OF SAID CYLINDERS BEING CENTRALLY APERTURED TO PASS SAID ROD AND THE OTHER END OF SAID ROD PROJECTING THROUGH SAID OTHER CYLINDER FOR OPERATIVE CONNECTION WITH THE MASTER CYLINDER OF A VEHICLE BRAKING SYSTEM, MEANS PROVIDING A SEPARABLE UNIDIRECTIONAL MOTION TRANSMITTING CONNECTION BETWEEN SAID ROD AND SAID OTHER PISTON, AND MEANS FOR SIMULTANEOUSLY INDEPENDENTLY APPLYING A FLUID PRESSURE DIFFERENTIAL
Claim 2
Dependent Claim
130 words
IN A FLUID PRESSURE BRAKE OPERATING APPARATUS, AN ACTUATOR UNIT COMPRISING TWO COAXIAL CYLINDERS, A PISTON SLIDABLY MOUNTED IN EACH CYLINDER, AN OPERATING ROD SLIDABLY MOUNTED ON THE AXIS OF SAID CYLINDERS AND HAVING ONE END IN SEPARABLE ABUTMENT WITH ONE OF SAID PISTONS DISPOSED WITHIN ONE OF SAID CYLINDERS, RETURN SPRING MEANS BIASING SAID ROD INTO ABUTMENT WITH SAID ONE PISTON, THE OTHER OF SAID PISTONS DISPOSED IN THE OTHER OF SAID CYLINDERS BEING CENTRALLY APERTURED TO PASS SAID ROD AND THE OTHER END OF SAID ROD PROJECTING THROUGH SAID OTHER CYLINDER FOR OPERATIVE CONNECTION WITH THE MASTER CYLINDER OF A VEHICLE BRAKING SYSTEM, MEANS PROVIDING A SEPARABLE UNIDIRECTIONAL MOTION TRANSMITTING CONNECTION BETWEEN SAID ROD AND SAID OTHER PISTON, AND MEANS FOR SIMULTANEOUSLY INDEPENDENTLY APPLYING A FLUID PRESSURE DIFFERENTIAL
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |