Patent US3181818A successfully refreshed from Google Patents.
US3181818A
Expired / Lapsed
US
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Shock wave position controller
Assignee: RTX Corp
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Filing: 1962-12-19
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Granted: 1965-05-04
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 David R Pearl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:57
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/057; Y; Y10; Y10S; Y10S367/00; Y10S367/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A CONTROL FOR A SUPERSONIC INLET HAVING A BYPASS FOR BLEEDING THE INLET AIR, SAID INLET DURING OPERATION HAVING A PRESSURE GRADIENT ALONG THE AXIS OF FLOW, SENSING MEANS FOR SENSING SAID PRESSURE GRADIENT, SIMULATING MEANS CONNECTED TO SAID SENSING MEANS AND LOCATED EXTERNALLY OF THE INLET FOR GENERATING A PLURALITY OF SIMULATED PRESSURES CORRESPONDING TO BUT ON A REDUCED SCALE OF SAID GRADIENT, MEANS CONNECTED TO SAID SIMULATING MEANS FOR SELECTING A DESIRED POSITION OF A PARTICULAR PRESSURE GRADIENT CONDITION, MEANS OPERATIVELY CONNECTED TO SAID SIMULATING MEANS FOR SENSING THE SELECTED PRESSURES, MEANS FOR COMPARING THE DESIRED POSITION OF THE PRESSURE GRADIENT CONDITION AND THE SELECTED PRESSURES TO PRODUCE AN ERROR
Claim 2
Dependent Claim
112 words
A CONTROL FOR A SUPERSONIC INLET HAVING A BYPASS FOR BLEEDING THE INLET AIR, SAID INLET DURING OPERATION HAVING A PRESSURE GRADIENT ALONG THE AXIS OF FLOW, SENSING MEANS FOR SENSING SAID PRESSURE GRADIENT, SIMULATING MEANS CONNECTED TO SAID SENSING MEANS AND LOCATED EXTERNALLY OF THE INLET FOR GENERATING A PLURALITY OF SIMULATED PRESSURES CORRESPONDING TO BUT ON A REDUCED SCALE OF SAID GRADIENT, MEANS CONNECTED TO SAID SIMULATING MEANS FOR SELECTING A DESIRED POSITION OF A PARTICULAR PRESSURE GRADIENT CONDITION, MEANS OPERATIVELY CONNECTED TO SAID SIMULATING MEANS FOR SENSING THE SELECTED PRESSURES, MEANS FOR COMPARING THE DESIRED POSITION OF THE PRESSURE GRADIENT CONDITION AND THE SELECTED PRESSURES TO PRODUCE AN ERROR
References Cited (Backward Citations)
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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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |