Patent US3093347A successfully refreshed from Google Patents.
US3093347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible vtol aircraft
Assignee: Individual
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Filing: 1961-12-26
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Granted: 1963-06-11
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Harlan D Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:36
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C23/00; B64C23/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN AN AIRPLANE ARRANGED FOR VERTICAL TAKEOFF AND LANDING AND CONVENTIONAL FLIGHT OPERATIONS, COMBINATION OF A FUSELAGE, AT LEAST ONE CONVENTIONAL MAJOR AIRFOIL, MOUNTED ON SAID FUSELAGE, A PROPELLER ROTATABLY MOUNTED ON SAID AIRFOIL, MEANS FOR DRIVING SAID PROPELLER, A STATIONARY SHROUD CIRCUMFERENTIALLY MOUNTED AROUND BUT SPACED FROM THE TIPS OF SAID PROPELLER, A SLOTTED FLAP MOUNTED ON SAID AIRFOIL FOR RETRACTED MOVEMENT ADJACENT SAID AIRFOIL AND PROJECTED POSITION BELOW SAID AIRFOIL, AND A SLIPSTREAM DEFLECTOR MOUNTED ON SAID AIRFOIL BELOW THE PROJECTED POSITION OF SAID SLOTTED FLAP, SAID DEFLECTOR HAVING A RETRACTED POSITION AND A DOWNWARDLY DISPOSED PROJECTED POSITION, SAID SHROUD, FLAP AND DEFLECTOR COOPERATING WHEN SAID FLAP AND DEFLECTOR ARE IN PROJECTED POSITIONS TO FORCE A SLIPSTREAM FROM SAID PROPELLER GENERALLY HORIZONTALLY OVER SAID AIRFOIL AND IN A SUBSTANTIALLY DOWNWARD DIRECTION, SAID FUSELAGE, SAID AIRFOIL AND THE AXIS OF SAID PROPELLER MAINTAINING A SUBSTANTIALLY HORZONTAL ATTITUDE DURING SAID OPERATIONS, THE LEADING EDGE OF SAID AIRFOIL BEING LOCATED REARWARDLY OF THE ENTIRE EXIT OF SAID SHROUD AND OF SAID PROPELLER.
Claim 2
Dependent Claim
171 words
IN AN AIRPLANE ARRANGED FOR VERTICAL TAKEOFF AND LANDING AND CONVENTIONAL FLIGHT OPERATIONS, COMBINATION OF A FUSELAGE, AT LEAST ONE CONVENTIONAL MAJOR AIRFOIL, MOUNTED ON SAID FUSELAGE, A PROPELLER ROTATABLY MOUNTED ON SAID AIRFOIL, MEANS FOR DRIVING SAID PROPELLER, A STATIONARY SHROUD CIRCUMFERENTIALLY MOUNTED AROUND BUT SPACED FROM THE TIPS OF SAID PROPELLER, A SLOTTED FLAP MOUNTED ON SAID AIRFOIL FOR RETRACTED MOVEMENT ADJACENT SAID AIRFOIL AND PROJECTED POSITION BELOW SAID AIRFOIL, AND A SLIPSTREAM DEFLECTOR MOUNTED ON SAID AIRFOIL BELOW THE PROJECTED POSITION OF SAID SLOTTED FLAP, SAID DEFLECTOR HAVING A RETRACTED POSITION AND A DOWNWARDLY DISPOSED PROJECTED POSITION, SAID SHROUD, FLAP AND DEFLECTOR COOPERATING WHEN SAID FLAP AND DEFLECTOR ARE IN PROJECTED POSITIONS TO FORCE A SLIPSTREAM FROM SAID PROPELLER GENERALLY HORIZONTALLY OVER SAID AIRFOIL AND IN A SUBSTANTIALLY DOWNWARD DIRECTION, SAID FUSELAGE, SAID AIRFOIL AND THE AXIS OF SAID PROPELLER MAINTAINING A SUBSTANTIALLY HORZONTAL ATTITUDE DURING SAID OPERATIONS, THE LEADING EDGE OF SAID AIRFOIL BEING LOCATED REARWARDLY OF THE ENTIRE EXIT OF SAID SHROUD AND OF SAID PROPELLER.
References Cited (Backward Citations)
US2929580A
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 |