US3370418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary stirling cycle engines
Assignee: Individual
•
Filing: 1966-10-24
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Granted: 1968-02-27
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Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Donald A Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:12
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G2270/00; F02G2270/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A DENSE GAS ROTARY STIRLING CYCLE ENGINE COMPRISING A FIRST CYLINDER, A TRUNCATED ROTOR WITHIN SAID CYLINDER, MULTIPLE RINGS MOUNTED ON SAID TRUNCATION, MULTIPLE IMPELLER BLADES MOUNTED ON SAID RINGS, A SHAFT TO SUPPORT SAID TRUNCATED ROTOR, TWO END PLATES TO ENCLOSED SAID FIRST CYLINDER, MULTIPLE PORTS WITHIN ONE OF SAID END PLATES, AND BEARINGS WITHIN SAID END PLATES TO SUPPORT SAID SHAFT,
Claim 2
Dependent Claim
63 words
A DENSE GAS ROTARY STIRLING CYCLE ENGINE COMPRISING A FIRST CYLINDER, A TRUNCATED ROTOR WITHIN SAID CYLINDER, MULTIPLE RINGS MOUNTED ON SAID TRUNCATION, MULTIPLE IMPELLER BLADES MOUNTED ON SAID RINGS, A SHAFT TO SUPPORT SAID TRUNCATED ROTOR, TWO END PLATES TO ENCLOSED SAID FIRST CYLINDER, MULTIPLE PORTS WITHIN ONE OF SAID END PLATES, AND BEARINGS WITHIN SAID END PLATES TO SUPPORT SAID SHAFT,
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |