US3556670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary heat engine
Assignee: Individual
•
Filing: 1969-05-27
•
Granted: 1971-01-19
•
Expires: 1989-05-27
Abstract
Abstract A ROTARY HEAT ENGINE FOR EFFICIENTLY GAS THERMAL ENERGY TO MECHANICAL ENERGY COMPRISING A HOLLOW GENERALLY CYLINDRICAL HOUSING, A HEAD SECURED AT EACH END, ONE OF THE HEADS HAVING GAS INTAKE MEANS AND THE OTHER OF THE HEADS HAVING GAS EXHAUST MEANS, BEARINGS MOUNTED IN THE HEADS SUPPORTING A SHAFT ON WHICH IS MOUNTED A ROTOR. THE ROTOR HAS A PLURALITY OF INTERNAL SPIRALLY DISPOSED FLUID OR GAS CHAMBERS EACH OF WHICH HAS THE SAME HAND AND PITCH AND EACH OF WHICH DEFINES A SUCCESSION OF COVERGING, DIVERGING AND CONSTANT AREA SECTIONS SO THAT FLUID INTRODUCED UNDER PRESSURE TO THE CHAMBERS RELEASES ITS HEAT ENERGY WHICH IS CONVERTED TO MECHANICAL ROTATIONAL SHAFT POWER.
Inventors
- 👤 Phillip J Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:56
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/02
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |