US3364675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for relating pressures in buffer and working spaces of a hot gas engine
Assignee: Motors Liquidation Co
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Filing: 1966-08-25
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Granted: 1968-01-23
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Expires: 1986-08-25
Abstract
No abstract record available.
Inventors
- 👤 David K Dorer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:26
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/045; F02G1/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A HOT GAS ENGINE HAVING A WORKING CHAMBER AND A BUFFER CHAMBER CONNECTED BY A CYLINDER MEMBER AND A PISTON MEMBER RECIPROCABLE IN SAID CYLINDER MEMBER, MEANS COOPERATING WITH SAID PORTON AND CYLINDER MEMBERS TO NORMALLY RESIST FLUID FLOW BETWEEN SAID CHAMBERS BUT TO PERMIT FREE UNIDIRECTIONAL FLUID BETWEEN SAID CHAMBERS IN AT LEAST ONE POSITION OF SAID PISTON MEMBER, SAID MEANS COMPRISING SEAL MEANS IN ONE OF SAID PISTON AND CYLINDER MEMBERS AND ENGAGING THE OTHER AND BYPASS MEANS IN SAID OTHER MEMBER AND ARRANGED TO COOPERATED WITH SAID SEAL MEANS AT SAID ONE PISTON PO-
Claim 2
Dependent Claim
98 words
IN A HOT GAS ENGINE HAVING A WORKING CHAMBER AND A BUFFER CHAMBER CONNECTED BY A CYLINDER MEMBER AND A PISTON MEMBER RECIPROCABLE IN SAID CYLINDER MEMBER, MEANS COOPERATING WITH SAID PORTON AND CYLINDER MEMBERS TO NORMALLY RESIST FLUID FLOW BETWEEN SAID CHAMBERS BUT TO PERMIT FREE UNIDIRECTIONAL FLUID BETWEEN SAID CHAMBERS IN AT LEAST ONE POSITION OF SAID PISTON MEMBER, SAID MEANS COMPRISING SEAL MEANS IN ONE OF SAID PISTON AND CYLINDER MEMBERS AND ENGAGING THE OTHER AND BYPASS MEANS IN SAID OTHER MEMBER AND ARRANGED TO COOPERATED WITH SAID SEAL MEANS AT SAID ONE PISTON PO-
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |