Patent US3175355A successfully refreshed from Google Patents.
US3175355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power plant housing for supersonic aircraft
Assignee: Ernst Heinkel Flugzeugbau GmbH
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Filing: 1961-10-16
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Granted: 1965-03-30
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Knauer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:32
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A SUPERSONIC AIRCRAFT, IN COMBINATION, A HOUSING HAV AN OUTER SURFACE TERMINATING AT THE FORWARD END OF SAID HOUSING IN A FORWARDLY TAPERING SUBSTANTIALLY POINTED SURFACE OF REVOLUTION, SAID HOUSING HAVING AIR PASSAGES TERMINATING AT SAID FORWARD END OF SAID HOUSING IN AT LEAST TWO SPACED INLET PORTS LOCATED ADJACENT SAID SURFACE OF REVOLUTION CIRCUMFERENTIALLY SPACED ABOUT THE SAME, SAID SURFACE OF REVOLUTION GRADUALLY MERGING BETWEEN SAID INLET PORTS INTO THE CONTOUR OF THE REMAINDER OF SAID OUTER SURFACE; AND A POWER UNIT LOCATED IN EACH AIR PASSAGE SO THAT SEPARATE STREAMS OF AIR REDUCED TO SONIC VELOCITY BY A SHOCK WAVE FORMING AT THE FORWARD END OF SAID OUTER SURFACE ENTER THROUGH SAID INLET PORTS FOR PASSING TO POWER UNITS LOCATED IN SAID PASSAGES.
Claim 2
Dependent Claim
126 words
IN A SUPERSONIC AIRCRAFT, IN COMBINATION, A HOUSING HAV AN OUTER SURFACE TERMINATING AT THE FORWARD END OF SAID HOUSING IN A FORWARDLY TAPERING SUBSTANTIALLY POINTED SURFACE OF REVOLUTION, SAID HOUSING HAVING AIR PASSAGES TERMINATING AT SAID FORWARD END OF SAID HOUSING IN AT LEAST TWO SPACED INLET PORTS LOCATED ADJACENT SAID SURFACE OF REVOLUTION CIRCUMFERENTIALLY SPACED ABOUT THE SAME, SAID SURFACE OF REVOLUTION GRADUALLY MERGING BETWEEN SAID INLET PORTS INTO THE CONTOUR OF THE REMAINDER OF SAID OUTER SURFACE; AND A POWER UNIT LOCATED IN EACH AIR PASSAGE SO THAT SEPARATE STREAMS OF AIR REDUCED TO SONIC VELOCITY BY A SHOCK WAVE FORMING AT THE FORWARD END OF SAID OUTER SURFACE ENTER THROUGH SAID INLET PORTS FOR PASSING TO POWER UNITS LOCATED IN SAID PASSAGES.
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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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |