US3176934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vtol aircraft
Assignee: General Electric Co
•
Filing: 1957-09-06
•
Granted: 1965-04-06
•
Expires: 1977-09-06
Abstract
No abstract record available.
Inventors
- 👤 Kappus Peter Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:12
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN AN AIRCRAFT HAVING A FUSELAGE WITH A TAIL UNIT THEREON WITH A NOZZLE AT SAID UNIT END AND A SEPARATE WING EXTENDING LATERALLY FROM EACH SIDE OF SAID FUSELAGE: A SEPARATE GENERALLY CIRCULAR DUCT EXTENDING VERTICALLY THROUGH EACH WING, A MULTI-BLADED FAN MOUNTED FOR FREE ROTATIUON AXIALLY IN SAID DUCT, PIVOTED ANGULAR DISCHARGE CONTROL VANES IN EACH DUCT OUTLET AND MOVABLE BETWEEN OPEN AND CLOSED POSITION TO DIRECT THE ANGLE OF DISCHARGE OF FLUID FROM VERTICAL TO SHUT OFF THROUGH SAID DUCT, A TURBINE OPERATIVELY CONNECTED TO DRIVE SAID FAN, JET ENGINE MEANS OPERATIVELY MOUNTED IN SAID AIRCRAFT, A TAIL PIPE INTERCONNECTING THE JET ENGINE MEANS AND NOZZLE FOR NORMAL REARWARD THRUST, SCROLL MEANS HAVING AN INLET AT SAID TAIL PIPE AND AN OUTLET ADJACENT SAID TURBINE, SAID OUTLET EXTENDING CIRCUMFERENTIALLY AROUND A PORTION OF SAID TURBINE AND BEING SHAPED TO DIRECT EXHAUST GASES THROUGH SAID TURBINE INTO SAID DUCT, AND MEANS IN SAID TAIL PIPE TO DIVERT AT LEAST A PORTION OF SAID ENGINE EXHUAST GASES INTO SAID INLET.
Claim 2
Dependent Claim
171 words
IN AN AIRCRAFT HAVING A FUSELAGE WITH A TAIL UNIT THEREON WITH A NOZZLE AT SAID UNIT END AND A SEPARATE WING EXTENDING LATERALLY FROM EACH SIDE OF SAID FUSELAGE: A SEPARATE GENERALLY CIRCULAR DUCT EXTENDING VERTICALLY THROUGH EACH WING, A MULTI-BLADED FAN MOUNTED FOR FREE ROTATIUON AXIALLY IN SAID DUCT, PIVOTED ANGULAR DISCHARGE CONTROL VANES IN EACH DUCT OUTLET AND MOVABLE BETWEEN OPEN AND CLOSED POSITION TO DIRECT THE ANGLE OF DISCHARGE OF FLUID FROM VERTICAL TO SHUT OFF THROUGH SAID DUCT, A TURBINE OPERATIVELY CONNECTED TO DRIVE SAID FAN, JET ENGINE MEANS OPERATIVELY MOUNTED IN SAID AIRCRAFT, A TAIL PIPE INTERCONNECTING THE JET ENGINE MEANS AND NOZZLE FOR NORMAL REARWARD THRUST, SCROLL MEANS HAVING AN INLET AT SAID TAIL PIPE AND AN OUTLET ADJACENT SAID TURBINE, SAID OUTLET EXTENDING CIRCUMFERENTIALLY AROUND A PORTION OF SAID TURBINE AND BEING SHAPED TO DIRECT EXHAUST GASES THROUGH SAID TURBINE INTO SAID DUCT, AND MEANS IN SAID TAIL PIPE TO DIVERT AT LEAST A PORTION OF SAID ENGINE EXHUAST GASES INTO SAID INLET.
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |