Patent EP0430087B1 successfully refreshed from Google Patents.
US3363433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot operated control valve
Assignee: JACKES EVANS Manufacturing Co
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Filing: 1965-08-27
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Granted: 1968-01-16
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 William J Barbier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:48
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/34; F25B41/325; F25B41/33; F25B41/335; F25B41/345; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/87016; Y10T137/8704; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
IN COMBINATION, A REFRIGERATION SYSTEM COMPRISING A HEAT EXCHANGER HAVING AN INLET AND AN OUTLET, A FLUID PRESSURE SOURCE HAVING A LOW PRESSURE INLET AND A HIGH PRESSURE OUTLET, THE IMPROVEMENT COMPRISING CONTROL VALVE MEANS INCLUDING VALVE HOUSING HAVING A FIRST INLET, A SECOND INLET, AND AN OUTLET, FIRST VALVE MEANS CONTROLLING COMMUNICATION BETWEEN THE FIRST INLET AND THE OUTLET, SECOND VALVE MEANS FOR CONTROLLING COMMUNICATION BETWEEN THE SECOND INLET AND THE OUTLET, AND A LOST MOTION CONNECTION BETWEEN THE FIRST AND SECOND VALVE MEANS, SAID LOST MOTION CONNECTION CAUSING THE SECOND VALVE MEANS TO BE MOVED BY THE FIRST VALVE MEANS TO AN OPEN POSITION ESTABLISHING COMMUNICATION BETWEEN THE SECOND INLET AND THE OUTLET WHENEVER THE FIRST VALVE MEANS MOVE TO A CLOSED CONDITION PREVENTING COMMUNICATION BETWEEN THE FIRST INLET AND THE OUTLET, SAID SECOND VALVE MEANS MOVING TO A CLOSED POSITION IN RESPONSE TO PRESSURE IN THE SECOND INLET WHENEVER THE FIRST VALVE MEANS ARE IN OPEN POSITION, THE HIGH PRESSURE OUTLET OF THE FLUID PRESSURE SOURCE BEING CONNECTED TO THE SECOND INLET OF THE SAID VALVE HOUSING AND THE INLET OF THE HEAT EXCHANGER, THE OUTLET OF THE HEAT EXCHANGER BEING CONNECTED TO THE FIRST INLET OF SAID VALVE HOUSING, AND THE OUTLET OF THE VALVE HOUSING BEING CONNECTED TO THE LOW PRESSURE INLET TO THE PRESSURE SOURCE.
Claim 2
Dependent Claim
221 words
IN COMBINATION, A REFRIGERATION SYSTEM COMPRISING A HEAT EXCHANGER HAVING AN INLET AND AN OUTLET, A FLUID PRESSURE SOURCE HAVING A LOW PRESSURE INLET AND A HIGH PRESSURE OUTLET, THE IMPROVEMENT COMPRISING CONTROL VALVE MEANS INCLUDING VALVE HOUSING HAVING A FIRST INLET, A SECOND INLET, AND AN OUTLET, FIRST VALVE MEANS CONTROLLING COMMUNICATION BETWEEN THE FIRST INLET AND THE OUTLET, SECOND VALVE MEANS FOR CONTROLLING COMMUNICATION BETWEEN THE SECOND INLET AND THE OUTLET, AND A LOST MOTION CONNECTION BETWEEN THE FIRST AND SECOND VALVE MEANS, SAID LOST MOTION CONNECTION CAUSING THE SECOND VALVE MEANS TO BE MOVED BY THE FIRST VALVE MEANS TO AN OPEN POSITION ESTABLISHING COMMUNICATION BETWEEN THE SECOND INLET AND THE OUTLET WHENEVER THE FIRST VALVE MEANS MOVE TO A CLOSED CONDITION PREVENTING COMMUNICATION BETWEEN THE FIRST INLET AND THE OUTLET, SAID SECOND VALVE MEANS MOVING TO A CLOSED POSITION IN RESPONSE TO PRESSURE IN THE SECOND INLET WHENEVER THE FIRST VALVE MEANS ARE IN OPEN POSITION, THE HIGH PRESSURE OUTLET OF THE FLUID PRESSURE SOURCE BEING CONNECTED TO THE SECOND INLET OF THE SAID VALVE HOUSING AND THE INLET OF THE HEAT EXCHANGER, THE OUTLET OF THE HEAT EXCHANGER BEING CONNECTED TO THE FIRST INLET OF SAID VALVE HOUSING, AND THE OUTLET OF THE VALVE HOUSING BEING CONNECTED TO THE LOW PRESSURE INLET TO THE PRESSURE SOURCE.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |