US3154267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled temperature flow around airfoils
Assignee: Individual
•
Filing: 1962-03-13
•
Granted: 1964-10-27
•
Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles H Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:02
CPC Classifications
B; B64; B64C; B64C23/00; B64C23/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
IN AN AIRCRAFT, (A) AN AIRFOIL THAT HAS A RIGID PORTION AND THAT HAS A FLIGHT CONTROL ELEMENT AT THE TRAILING EDGE OF THE RIGID PORTION, (B) A JET ENGINE THAT PROPELS THE AIRCRAFT AND THAT HAS AN EXHAUST, (C) A FIRST PASSAGE THROUGH WHICH EXHAUST GASES FROM THE ENGINE FLOW, SAID FIRST PASSAGE HAVING AN OUTLET ADJACENT TO AND DIRECTED TOWARD A SURFACE OF THE AIRFOIL AHEAD OF THE FLIGHT CONTROL ELEMENT AND IN POSITION TO DIRECT THE EXHAUST GASES FROM THE JET ENGINE OVER AN EXTERNAL SURFACE OF THE RIGID PORTION OF THE AIRFOIL AND OVER THE SURFACE OF THE CONTROL ELEMENT, (D) A SECOND PASSAGE LEADING INTO THE EXHAUST GAS STREAM THAT FLOWS FROM THE FIRST PASSAGE, THE SECOND PASSAGE HAVING AN INLET END LOCATED ABOVE THE LEADING EDGE OF THE RIGID PORTION OF THE AIRFOIL AND FACING IN A DIRECTION TO RECEIVE AIR THAT FLOWS FROM THE LEADING EDGE OVER THE TOP SURFACE OF SAID RIGID PORTION, SAID INLET END OF SAID SECOND PASSAGE BEING LOCATED AHEAD OF THE OUTLET OF THE FIRST PASSAGE.
Claim 2
Dependent Claim
178 words
IN AN AIRCRAFT, (A) AN AIRFOIL THAT HAS A RIGID PORTION AND THAT HAS A FLIGHT CONTROL ELEMENT AT THE TRAILING EDGE OF THE RIGID PORTION, (B) A JET ENGINE THAT PROPELS THE AIRCRAFT AND THAT HAS AN EXHAUST, (C) A FIRST PASSAGE THROUGH WHICH EXHAUST GASES FROM THE ENGINE FLOW, SAID FIRST PASSAGE HAVING AN OUTLET ADJACENT TO AND DIRECTED TOWARD A SURFACE OF THE AIRFOIL AHEAD OF THE FLIGHT CONTROL ELEMENT AND IN POSITION TO DIRECT THE EXHAUST GASES FROM THE JET ENGINE OVER AN EXTERNAL SURFACE OF THE RIGID PORTION OF THE AIRFOIL AND OVER THE SURFACE OF THE CONTROL ELEMENT, (D) A SECOND PASSAGE LEADING INTO THE EXHAUST GAS STREAM THAT FLOWS FROM THE FIRST PASSAGE, THE SECOND PASSAGE HAVING AN INLET END LOCATED ABOVE THE LEADING EDGE OF THE RIGID PORTION OF THE AIRFOIL AND FACING IN A DIRECTION TO RECEIVE AIR THAT FLOWS FROM THE LEADING EDGE OVER THE TOP SURFACE OF SAID RIGID PORTION, SAID INLET END OF SAID SECOND PASSAGE BEING LOCATED AHEAD OF THE OUTLET OF THE FIRST PASSAGE.
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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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |