USRE27567E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stirling cycle machine with self-oscillating regenerator
Assignee: —
•
Filing: 1971-03-31
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Granted: 1973-01-23
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Expires: 1991-03-31
Abstract
Abstract CONSTANT VOLUME REGENERATIVE, OR STIRLING, CYCLE THERMAL MACHINE HAVING A SELF-OSCILLATING REGENERATOR. REGENERATOR IS SUPPORTED BY SPRING ADAPTED TO BE ATTACHED TO FIXED STRUCTURE, AND INCLUDES A POROUS, HIGH HEAT STORAGE CAPACITY, MATRIX POSITIONED BETWEEN TWO THIN ORIFICE PLATES. THE ORIFICE PLATES HAVE MANY SMALL HOLES WHICH CAUSE THE WORKING FLUID OF MACHINE PASSING THROUGH THE MATRIX TO JET AGAINST THE HEATING AND COOLING WALLS THEREOF TO ENHANCE HEAT TRANSFER BETWEEN WORKING FLUID AND THE WALLS.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:12
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/053; F02G1/057
Claims Analysis
Total Claims: 0
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |