US3200581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method, system and apparatus for starting a fluid engine
Assignee: Cleveland Pneumatic Industries Inc
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Filing: 1962-09-10
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Granted: 1965-08-17
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Weiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:42
CPC Classifications
F; F02; F02N; F02N9/00; F02N9/04; F02G; F02G1/00; F02G1/04; F25; F25B; F25B9/00; F25B9/002; F25B9/004
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
169 words
IN A SYSTEM HAVING A WORKING FLUID TRAVERSING A THERMODYNAMIC OF COMPRESSION, HEATING, EXPANSION AND COOLING STAGES, A FLUID ENGINE PROVIDED WITH A WORKING FLUID COMPRESSION CHAMBER AND A WORKING FLUID EXPANSION CHAMBER, CONDUIT MEANS FOR CONNECTING THE CHAMBERS OF THE ENGINE TOGETHER, HEATING MEANS ASSOCIATED WITH THE CONDUIT MEANS FOR HEATING SUCH WORKING FLUID, MEANS FOR CONTROLLING THE OPERATION AND SPEED OF THE ENGINE BY VARIABLY BYPASSING THE WORKING FLUID BY THE COOLING STAGE OF THE SYSTEM, MEANS FOR VARYING THE VOLUME OF THE COMPRESSIN CHAMBER OF THEENGINE TO COMPENSATE FOR TEMPERATURE VARIATIONS AND DIFFERENT WORKING FLUIDS, AND APPARATUS FOR RE-STARTING THE ENGINE AFTER SHUT DOWN, SAID APPARATUS COMPRISING, AN ARRANGEMENT CONNECTED TO THE CIRCUIT MEANS AT A LOCATION THEREALONG WHICH IS BETWEEN THE COMPRESSION CHAMBER OF THE ENGINE AND THE HEATING MEANS FOR RECEIVING AND STORING A QUANTITY OF COMPRESSED WORKING FLUID WHILE THE ENGINE IS RUNNING AND FOR RELEASING THE QUANTITY OF STORED COMPRESSED WORKING FLUID AFTER THE ENGINE HAS BEEN STOPPED TO RE-START THE ENGINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |