US3185180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-control valve with automatic fluid latching
Assignee: Westinghouse Electric Corp
•
Filing: 1963-07-18
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Granted: 1965-05-25
•
Expires: 1983-07-18
Abstract
No abstract record available.
Inventors
- 👤 Jr William A Fish
- 👤 Charles B Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:34
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/32; G; G01; G01R; G01R31/00; G01R31/327; G01R31/3271; G01R31/3272; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614; Y10T137/86622; Y10T137/8663; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A FLUID-CONTROL VALVE FOR PRESSURIZING OR EXHAUSTING THE OPERATING CYLINDER OF A FLUID MOTOR COMPRISING, IN COMBINATION, A VALVE BODY HAVING AN AXIAL BORE WITH A RESTRICTING PORTION THEREIN, A PISTON-ACTUATED EXHAUST VALVE HAVING A VALVE STEM PORTION EXTENDING THROUGH SAID AXIAL BORE, SAID VALVE BODY BORE HAVING A FIRST ENLARGED SPACED DEFINING AN OPERATING CYLINDER ON ONE SIDE OF SAID RESTRICTING PORTION AND A SECOND ENLARGED SPACED ON THE OTHER SIDE OF SAID RESTRICTING PORTION, SAID VALVE BODY HAVING A MOTOR CONTROL PORT CONNECTED WITH SAID SECOND ENLARGED SPACE, HIGH-PRESSURE FLUID SUPPLY MEANS FOR CONSTANTLY SUPPLYING HIGH-PRESSURE FLUID TO SAID AXIAL BORE, AN ACTUATING PISTON DISPOSED AT ONE END OF SAID VALVE-STEM PORTION AND RECIPROCALLY OPERABLE WITHIN THE FIRST-MENTIONED ENLARGED SPACE, A GASKET SEAL CARRIED BY SAID VALVE STEM AND ARRANGED FOR SEALING AGAINST SAID RESTRICTING PORTION IN THE EXHAUST POSITION OF THE FLUID-CONTROL VALVE, AN INTERMEDIATE PISTON PORTION SECURED TO THE VALVE STEM AND DISPOSED ON SAID OTHER SIDE OF THE RESTRICT-
Claim 2
Dependent Claim
164 words
A FLUID-CONTROL VALVE FOR PRESSURIZING OR EXHAUSTING THE OPERATING CYLINDER OF A FLUID MOTOR COMPRISING, IN COMBINATION, A VALVE BODY HAVING AN AXIAL BORE WITH A RESTRICTING PORTION THEREIN, A PISTON-ACTUATED EXHAUST VALVE HAVING A VALVE STEM PORTION EXTENDING THROUGH SAID AXIAL BORE, SAID VALVE BODY BORE HAVING A FIRST ENLARGED SPACED DEFINING AN OPERATING CYLINDER ON ONE SIDE OF SAID RESTRICTING PORTION AND A SECOND ENLARGED SPACED ON THE OTHER SIDE OF SAID RESTRICTING PORTION, SAID VALVE BODY HAVING A MOTOR CONTROL PORT CONNECTED WITH SAID SECOND ENLARGED SPACE, HIGH-PRESSURE FLUID SUPPLY MEANS FOR CONSTANTLY SUPPLYING HIGH-PRESSURE FLUID TO SAID AXIAL BORE, AN ACTUATING PISTON DISPOSED AT ONE END OF SAID VALVE-STEM PORTION AND RECIPROCALLY OPERABLE WITHIN THE FIRST-MENTIONED ENLARGED SPACE, A GASKET SEAL CARRIED BY SAID VALVE STEM AND ARRANGED FOR SEALING AGAINST SAID RESTRICTING PORTION IN THE EXHAUST POSITION OF THE FLUID-CONTROL VALVE, AN INTERMEDIATE PISTON PORTION SECURED TO THE VALVE STEM AND DISPOSED ON SAID OTHER SIDE OF THE RESTRICT-
References Cited (Backward Citations)
US1623557A
Cited
US3104133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |