US3330501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane construction
Assignee: Individual
•
Filing: 1965-09-27
•
Granted: 1967-07-11
•
Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:00
CPC Classifications
B; B64; B64C; B64C5/00; B64C5/10; B64C5/14; B64C3/00; B64C3/38; B64C3/40; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN AN AIRPLANE OF THE CHARACTER DESCRIBED, (A) A FUSELAGE, (B) A PAIR OF WINGS PIVOTALLY SUPPORTED ON A PIVOT AXIS BY SAID FUSELAGE NEAR THEIR ENTERING EDGES, (C) THE SAID PIVOT AXIS DEFINING AN ANGLE TO THE VERTICAL IN A PLANE TRANSVERSE TO THE FUSELAGE AND AN ANGLE TO THE VERTICAL IN A PLANE RUNNING LONGITUDINALLY OF THE FUSELAGE, (D) SAID PIVOT AXIS CAUSING SAID WINGS TO DEFINE A HIGH ANGLE TO INCIDENCE AND DIHEDRAL ANGLE OF MAXIMUM ASPECT RATIOS, WHEREBY STABLE LOW LANDING AND TAKES OFF SPEEDS ARE NORMAL, (E) SAID WINDS AUTOMATICALLY PIVOTING TO SWEEPBACK POSITION WITH LOW ANGLE OF INCIDENCE AND LOW ASPECT RATIO AS AIR SPEED INCREASES, AND (F) A GENERALLY TRIANGULAR FILLED AIRFOIL POVITED TO EACH WING AND MOVABLE INTO AN END RECESS IN SUCH WING AS IT MOVES TO SWEEPBACK POSITION.
Claim 2
Dependent Claim
138 words
IN AN AIRPLANE OF THE CHARACTER DESCRIBED, (A) A FUSELAGE, (B) A PAIR OF WINGS PIVOTALLY SUPPORTED ON A PIVOT AXIS BY SAID FUSELAGE NEAR THEIR ENTERING EDGES, (C) THE SAID PIVOT AXIS DEFINING AN ANGLE TO THE VERTICAL IN A PLANE TRANSVERSE TO THE FUSELAGE AND AN ANGLE TO THE VERTICAL IN A PLANE RUNNING LONGITUDINALLY OF THE FUSELAGE, (D) SAID PIVOT AXIS CAUSING SAID WINGS TO DEFINE A HIGH ANGLE TO INCIDENCE AND DIHEDRAL ANGLE OF MAXIMUM ASPECT RATIOS, WHEREBY STABLE LOW LANDING AND TAKES OFF SPEEDS ARE NORMAL, (E) SAID WINDS AUTOMATICALLY PIVOTING TO SWEEPBACK POSITION WITH LOW ANGLE OF INCIDENCE AND LOW ASPECT RATIO AS AIR SPEED INCREASES, AND (F) A GENERALLY TRIANGULAR FILLED AIRFOIL POVITED TO EACH WING AND MOVABLE INTO AN END RECESS IN SUCH WING AS IT MOVES TO SWEEPBACK POSITION.
References Cited (Backward Citations)
GB191018611A
Cited
US1171162A
Cited
US1567531A
Cited
US2428934A
Cited
US2459009A
Cited
US2744698A
Cited
US2794608A
Cited
GB894365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |