US3329016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter airspeed measuring system
Assignee: Individual
•
Filing: 1965-10-22
•
Granted: 1967-07-04
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Leavens
- 👤 Edward J Rickner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:19
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02; G01P13/025; G01P5/00; G01P5/14; G01P5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AIR SPEED MEASURING APPARATUS FOR A HELICOPTER INCLUDING MEANS THEREIN FOR PROVIDING AN OUTPUT SIGNAL REPRESENTATIVE OF THE HELICOPTER ATTITUDE WITH RESPECT TO A REFERENCE PLANE COMPRISING: A PITOT-STATIC PROBE FORM ED TO BE ROTATABLY MOUNTED TO THE EXTERNAL SURFACE OF THE HELICOPTER IN THE ROTOR DOWNWASH, SAID PROBE HAVING A PITOT PORT AND A STATIC PORT; PROBE ROTATING MEANS OPERATIVELY CONNECTED TO SAID PROBE FOR POSITIONING SAID PITOT PORT ACROSS THE PATH OF THE AIR STREAM COMPONENT WHICH LIES IN A PLANE NORMAL TO THE ROTATIONAL AXIS OF SAID PROBE; AND
Claim 2
Dependent Claim
92 words
AIR SPEED MEASURING APPARATUS FOR A HELICOPTER INCLUDING MEANS THEREIN FOR PROVIDING AN OUTPUT SIGNAL REPRESENTATIVE OF THE HELICOPTER ATTITUDE WITH RESPECT TO A REFERENCE PLANE COMPRISING: A PITOT-STATIC PROBE FORM ED TO BE ROTATABLY MOUNTED TO THE EXTERNAL SURFACE OF THE HELICOPTER IN THE ROTOR DOWNWASH, SAID PROBE HAVING A PITOT PORT AND A STATIC PORT; PROBE ROTATING MEANS OPERATIVELY CONNECTED TO SAID PROBE FOR POSITIONING SAID PITOT PORT ACROSS THE PATH OF THE AIR STREAM COMPONENT WHICH LIES IN A PLANE NORMAL TO THE ROTATIONAL AXIS OF SAID PROBE; AND
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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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |