US3155341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertiplane
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1963-04-05
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Granted: 1964-11-03
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Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
- 👤 Peter F Girard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:22
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/22; B64C27/26; B64C27/82; B64C2027/8236; B64C2027/8263; B64C2027/8272; B64C2027/8281
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A CONVERTIPLANE: AN AIRFRAME HAVING FIXED WING STRUCTURE; A LIFTING ROTOR ROTATABLY MOUNTED ON TOP OF SAID AIRFRAME; FORWARD THRUST PRODUCING MEANS OPERABLY MOUNTED ON SAID AIRFRAME; A MOTOR; DRIVE MEANS CONNECTED BETWEEN SAID MOTOR AND SAID ROTOR TO DRIVE SAID ROTOR AT ONE SPEED TO PROVIDE A SUBSTANTIAL PORTION OF THE TOTAL LIFT OF THE CONVERTIPLANE; AND SPEED CHANGING MEANS IN SAID DRIVE MEANS OPERABLE TO DRIVE SAID ROTOR AT ANOTHER, REDUCED SPEED, JUST FAST ENOUGH TO MINIMIZE DRAG, DURING FORWARD FLIGHT OF THE CONVERTIPLANE WHEN SAID FORWARD THRUST PRODUCING MEANS IS OPERATED.
Claim 2
Dependent Claim
95 words
IN A CONVERTIPLANE: AN AIRFRAME HAVING FIXED WING STRUCTURE; A LIFTING ROTOR ROTATABLY MOUNTED ON TOP OF SAID AIRFRAME; FORWARD THRUST PRODUCING MEANS OPERABLY MOUNTED ON SAID AIRFRAME; A MOTOR; DRIVE MEANS CONNECTED BETWEEN SAID MOTOR AND SAID ROTOR TO DRIVE SAID ROTOR AT ONE SPEED TO PROVIDE A SUBSTANTIAL PORTION OF THE TOTAL LIFT OF THE CONVERTIPLANE; AND SPEED CHANGING MEANS IN SAID DRIVE MEANS OPERABLE TO DRIVE SAID ROTOR AT ANOTHER, REDUCED SPEED, JUST FAST ENOUGH TO MINIMIZE DRAG, DURING FORWARD FLIGHT OF THE CONVERTIPLANE WHEN SAID FORWARD THRUST PRODUCING MEANS IS OPERATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |