US3093349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct arrangement for aircraft boundary layer control
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1960-07-29
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Granted: 1963-06-11
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Expires: 1980-07-29
Abstract
No abstract record available.
Inventors
- 👤 Fred G Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:40
CPC Classifications
B; B64; B64C; B64C21/00; B64C21/02; B64C21/025; B64C2230/00; B64C2230/04; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A BOUNDARY LAYER CONTROL SYSTEM FOR USE IN AN AIRCRAFT WING HAVING A WALL EXTENDING BETWEEN THE UPPER AND LOWER SURFACES FORWARDLY OF THE TRAILING EDGE THEREOF, AND AERODYNAMIC CONTROL SURFACES HINGEDLY MOUNTED ON SAID WING REARWARDLY OF SAID WALL, SAID BOUNDARY LAYER CONTROL SYSTEM COMPRISING: A PLURALITY OF INLET SLOTS IN SAID WALL FORWARDLY OF ONE OF SAID CONTROL SURFACES; A PLURALITY OF OUTLET SLOTS IN SAID WALL FORWARDLY OF ANOTHER OF SAID CONTROL SURFACES; A DUCT FROM EACH OF SAID INLET SLOTS BYPASSING AT LEAST ONE ADJACENT SLOT AND BEING CONNECTED WITH ONE OF SAID OUTLET SLOTS SPACED A SUBSTANTIAL DISTANCE THEREFROM; EACH OF SAID DUCTS BEING THEREBY PROVIDED WITH AN ELONGATED JET PUMP PORTION; AND JET PUMP MEANS OPERATIVELY MOUNTED IN SAID JET PUMP PORTIONS TO ; PROVIDE PRIMARY GAS FLOW IN THE DIRECTION OF THE OUTLET SLOTS, AMBIENT AIR BEING DRAWN INTO SAID INLET SLOTS AND EJECTED THROUGH SAID OUTLET SLOTS.
Claim 2
Dependent Claim
155 words
A BOUNDARY LAYER CONTROL SYSTEM FOR USE IN AN AIRCRAFT WING HAVING A WALL EXTENDING BETWEEN THE UPPER AND LOWER SURFACES FORWARDLY OF THE TRAILING EDGE THEREOF, AND AERODYNAMIC CONTROL SURFACES HINGEDLY MOUNTED ON SAID WING REARWARDLY OF SAID WALL, SAID BOUNDARY LAYER CONTROL SYSTEM COMPRISING: A PLURALITY OF INLET SLOTS IN SAID WALL FORWARDLY OF ONE OF SAID CONTROL SURFACES; A PLURALITY OF OUTLET SLOTS IN SAID WALL FORWARDLY OF ANOTHER OF SAID CONTROL SURFACES; A DUCT FROM EACH OF SAID INLET SLOTS BYPASSING AT LEAST ONE ADJACENT SLOT AND BEING CONNECTED WITH ONE OF SAID OUTLET SLOTS SPACED A SUBSTANTIAL DISTANCE THEREFROM; EACH OF SAID DUCTS BEING THEREBY PROVIDED WITH AN ELONGATED JET PUMP PORTION; AND JET PUMP MEANS OPERATIVELY MOUNTED IN SAID JET PUMP PORTIONS TO ; PROVIDE PRIMARY GAS FLOW IN THE DIRECTION OF THE OUTLET SLOTS, AMBIENT AIR BEING DRAWN INTO SAID INLET SLOTS AND EJECTED THROUGH SAID OUTLET SLOTS.
References Cited (Backward Citations)
US2890843A
Cited
US3012740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |