US3103327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter control system
Assignee: Individual
•
Filing: 1961-03-21
•
Granted: 1963-09-10
•
Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Robert D Parry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:55
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CONTROL SYSTEM FOR AN AIRCRAFT HAVING A CIRCULAR THROAT WITH MEANS IN THE THROAT FOR DIRECTING A HIGH SPEED COLUMN OF AIR DOWNWARDLY THERETHROUGH, SAID CONTROL SYSTEM COMPRISING THREE CONTROL VANES WHICH ARE JOURNALLED AT A COMMON POINT ON THE VERTICAL CENTRAL AXIS OF THE THROAT IMMEDIATELY BELOW THE EXIT OF THE THROAT, SAID VANES EXTENDING RADIALLY OUTWARDLY FROM SAID JOURNAL WITH ONE OF THE SAID VANES BEING ORIENTED IN THE FORWARD DIRECTION OF FLIGHT OF THE AIRCRAFT AND WITH THE OTHER TWO VANES BEING ARRANGED SYMMETRICALLY WITH RESPECT TO THE FIRST VANE, THREE ROTATABLY MOUNTED CONTROL SHAFTS ORIENTED RESPECTIVELY RADIALLY OUTWARDLY FROM A CENTRAL POINT, A FORKED CONTROL LEVER PINNED TO THE INNER END OF EACH
Claim 2
Dependent Claim
118 words
A CONTROL SYSTEM FOR AN AIRCRAFT HAVING A CIRCULAR THROAT WITH MEANS IN THE THROAT FOR DIRECTING A HIGH SPEED COLUMN OF AIR DOWNWARDLY THERETHROUGH, SAID CONTROL SYSTEM COMPRISING THREE CONTROL VANES WHICH ARE JOURNALLED AT A COMMON POINT ON THE VERTICAL CENTRAL AXIS OF THE THROAT IMMEDIATELY BELOW THE EXIT OF THE THROAT, SAID VANES EXTENDING RADIALLY OUTWARDLY FROM SAID JOURNAL WITH ONE OF THE SAID VANES BEING ORIENTED IN THE FORWARD DIRECTION OF FLIGHT OF THE AIRCRAFT AND WITH THE OTHER TWO VANES BEING ARRANGED SYMMETRICALLY WITH RESPECT TO THE FIRST VANE, THREE ROTATABLY MOUNTED CONTROL SHAFTS ORIENTED RESPECTIVELY RADIALLY OUTWARDLY FROM A CENTRAL POINT, A FORKED CONTROL LEVER PINNED TO THE INNER END OF EACH
References Cited (Backward Citations)
US2953320A
Cited
US2874920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |