Patent US1636086A successfully refreshed from Google Patents.
Patent US3218801A successfully refreshed from Google Patents.
US3218801A
Expired / Lapsed
US
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Normal shock positioning apparatus
Assignee: Individual
•
Filing: 1963-11-08
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Granted: 1965-11-23
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Vasu George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10; F02C; F02C7/00; F02C7/04; F02C7/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CONTROL APPARATUS FOR AN ENGINE HAVING AN INLET HAVING A THROAT PORTION ADJACENT TO ITS UPSTREAM END THROUGH WHICH AIR ENTERS THE ENGINE AT SUPERSONIC VELOCITY FOR COMBUSTION THEREIN DURING ENGINE OPERATION, SAID APPARATUS COMPRISING MEANS FOR MEASURING THE AIR PRESSURE AFTER ENTRY INTO SAID INLET, SAID PRESSURE HAVING AN AVERAGE AND ALTERNATING COMPONENT, MEANS TO ELIMINATE SAID AVERAGE COMPONENT, MEANS RESPONSIVE TO SAID ALTERNATING COMPONENT FOR PRODUCING A FIRST SIGNAL WHICH IS FUNCTION OF NORMAL SHOCK WAVE LOCATION, MEANS FOR SUPPLYING A REFERENCE SIGNAL, MEANS FOR COMPARING SAID FIRST SIGNAL TO SAID REFERENCE SIGNAL THEREBY PRODUCING AN ERROR SIGNAL, AND MEANS FOR UTILIZING SAID ERROR SIGNAL TO CONTROL FUEL FLOW RATE TO SAID ENGINE.
Claim 2
Dependent Claim
116 words
A CONTROL APPARATUS FOR AN ENGINE HAVING AN INLET HAVING A THROAT PORTION ADJACENT TO ITS UPSTREAM END THROUGH WHICH AIR ENTERS THE ENGINE AT SUPERSONIC VELOCITY FOR COMBUSTION THEREIN DURING ENGINE OPERATION, SAID APPARATUS COMPRISING MEANS FOR MEASURING THE AIR PRESSURE AFTER ENTRY INTO SAID INLET, SAID PRESSURE HAVING AN AVERAGE AND ALTERNATING COMPONENT, MEANS TO ELIMINATE SAID AVERAGE COMPONENT, MEANS RESPONSIVE TO SAID ALTERNATING COMPONENT FOR PRODUCING A FIRST SIGNAL WHICH IS FUNCTION OF NORMAL SHOCK WAVE LOCATION, MEANS FOR SUPPLYING A REFERENCE SIGNAL, MEANS FOR COMPARING SAID FIRST SIGNAL TO SAID REFERENCE SIGNAL THEREBY PRODUCING AN ERROR SIGNAL, AND MEANS FOR UTILIZING SAID ERROR SIGNAL TO CONTROL FUEL FLOW RATE TO SAID ENGINE.
References Cited (Backward Citations)
US3029633A
Cited
US3102387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |