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US3149804A
Expired / Lapsed
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Anti-stall system
Assignee: Individual
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Filing: 1963-03-13
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Granted: 1964-09-22
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Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles J Litz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:04
CPC Classifications
B; B64; B64C; B64C23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN AIRCRAFT ANTI-STALL SYSTEM INCLUDING AN AIRFOIL HAVING PERFORATIONS DISTRIBUTED ABOUT ITS UPPER SURFACE, AN EJECTOR MOUNTED WITHIN SAID AIRFOIL AND HAVING AIR INLETS EACH INTERCONNECTED WITH A DIFFERENT ONE OF SAID PERFORATIONS, SAID EJECTOR HAVING A GAS INLET, AND A CARTRIDGE ACTUATED GAS GENERATOR CONNECTED TO SAID GAS INLET AND OPERABLE TO SUPPLY THROUGH SAID INLET A GAS WHEREBY AIR IS DRAWN INTO SAID EJECTOR AT A RELATIVELY LOW PRESSURE AND IS DISCHARGED THEREFROM ALONG THE TRAILING EDGE OF SAID AIRFOIL AT A RELATIVELY HIGH PRESSURE.
Claim 2
Dependent Claim
87 words
AN AIRCRAFT ANTI-STALL SYSTEM INCLUDING AN AIRFOIL HAVING PERFORATIONS DISTRIBUTED ABOUT ITS UPPER SURFACE, AN EJECTOR MOUNTED WITHIN SAID AIRFOIL AND HAVING AIR INLETS EACH INTERCONNECTED WITH A DIFFERENT ONE OF SAID PERFORATIONS, SAID EJECTOR HAVING A GAS INLET, AND A CARTRIDGE ACTUATED GAS GENERATOR CONNECTED TO SAID GAS INLET AND OPERABLE TO SUPPLY THROUGH SAID INLET A GAS WHEREBY AIR IS DRAWN INTO SAID EJECTOR AT A RELATIVELY LOW PRESSURE AND IS DISCHARGED THEREFROM ALONG THE TRAILING EDGE OF SAID AIRFOIL AT A RELATIVELY HIGH PRESSURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |