US3233426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion engine
Assignee: Raytheon Co
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Filing: 1965-08-02
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Granted: 1966-02-08
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Cowans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:16
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/06; F25B2400/00; F25B2400/14; F25B2400/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
AN ADIABATIC EXPANSION ENGINE COMPRISING: A HOUSING HAVING A BORE EXTENDING AXIALLY THERETHROUGH; A CYLINDER HAVING ONE CLOSED END WITH A GAS PASSAGEWAY FORMED THROUGH THE CLOSED END, SAID CYLINDER BEING MOUNTED WITHIN THE BORE OF SAID HOUSING; A PISTON HAVING A GAS PASSAGEWAY EXTENDING FROM THE HEAD THEREOF LONGITUDINALLY THERETHROUGH, SAID PISTON BEING MOUNTED FOR RECIPROCAL MOTION WITHIN AND RELATIVE TO SAID CYLINDER FOR FORMING AN EXPANSION CHAMBER BETWEEN THE CYLINDER END WALL AND THE PISTON; A NORMALLY CLOSED VALVE RECIPROCALLY MOUNTED TO SEAT ACROSS ONE OF THE GAS PASSAGEWAYS; A NORMALLY OPEN VALVE RECIPROCALLY MOUNTED TO SEAT ACROSS THE OTHER GAS PASSAGEWAY, SAID NORMALLY CLOSED VALVE BEING ADAPTED TO BE OPENED AND SAID NORMALLY OPEN VALVE BEING ADAPTED TO BE CLOSED BY DIRECT MECHANICAL COACTION THEREBETWEEN ONLY WHEN SAID PISTON IS IN CLOSE PROXIMITY TO THE CLOSED END OF SAID CYLINDER WHEREBY COMPRESSED GAS IS DIRECTED INTO THE EXPANSION CHAMBER THROUGH THE NOW OPEN SAID VALVE, SAID NORMALLY OPEN VALVE BEING ADAPTED TO BE OPENED BY DIRECT MECHANICAL COACTION BETWEEN SAID RECIPROCATING PISTON AND CYLINDER WHEN SAID PISTON IS DISPLACED REMOTELY A PREDETERMINED DISTANCE FROM THE CLOSED END WALL OF SAID CYLINDER WHEREBY EXPANDED GAS IS EXHAUSTED FROM THE EXPANSION CHAMBER THROUGH THE NOW OPEN SAID VALVE; AND POWER TAKEOFF MEANS CONNECTED TO ALTERNATELY TRANSMIT POWER FROM AND TO SAID RECIPROCAL PISTON AND CYLINDER MEANS.
Claim 2
Dependent Claim
227 words
AN ADIABATIC EXPANSION ENGINE COMPRISING: A HOUSING HAVING A BORE EXTENDING AXIALLY THERETHROUGH; A CYLINDER HAVING ONE CLOSED END WITH A GAS PASSAGEWAY FORMED THROUGH THE CLOSED END, SAID CYLINDER BEING MOUNTED WITHIN THE BORE OF SAID HOUSING; A PISTON HAVING A GAS PASSAGEWAY EXTENDING FROM THE HEAD THEREOF LONGITUDINALLY THERETHROUGH, SAID PISTON BEING MOUNTED FOR RECIPROCAL MOTION WITHIN AND RELATIVE TO SAID CYLINDER FOR FORMING AN EXPANSION CHAMBER BETWEEN THE CYLINDER END WALL AND THE PISTON; A NORMALLY CLOSED VALVE RECIPROCALLY MOUNTED TO SEAT ACROSS ONE OF THE GAS PASSAGEWAYS; A NORMALLY OPEN VALVE RECIPROCALLY MOUNTED TO SEAT ACROSS THE OTHER GAS PASSAGEWAY, SAID NORMALLY CLOSED VALVE BEING ADAPTED TO BE OPENED AND SAID NORMALLY OPEN VALVE BEING ADAPTED TO BE CLOSED BY DIRECT MECHANICAL COACTION THEREBETWEEN ONLY WHEN SAID PISTON IS IN CLOSE PROXIMITY TO THE CLOSED END OF SAID CYLINDER WHEREBY COMPRESSED GAS IS DIRECTED INTO THE EXPANSION CHAMBER THROUGH THE NOW OPEN SAID VALVE, SAID NORMALLY OPEN VALVE BEING ADAPTED TO BE OPENED BY DIRECT MECHANICAL COACTION BETWEEN SAID RECIPROCATING PISTON AND CYLINDER WHEN SAID PISTON IS DISPLACED REMOTELY A PREDETERMINED DISTANCE FROM THE CLOSED END WALL OF SAID CYLINDER WHEREBY EXPANDED GAS IS EXHAUSTED FROM THE EXPANSION CHAMBER THROUGH THE NOW OPEN SAID VALVE; AND POWER TAKEOFF MEANS CONNECTED TO ALTERNATELY TRANSMIT POWER FROM AND TO SAID RECIPROCAL PISTON AND CYLINDER MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |