US3126967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
sudrow
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:03
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/22; B64C27/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AUTOMATIC AUTO-ROTATION MEANS FOR AN AIRCRAFT SUSTAINING ROTOR, COMPRISING: A DRIVEN SHAFT; A HUB FREELY ROTATABLY MOUNTED ON SAID SHAFT; SAID HUB HAVING A PLURALITY OF ROTOR BLADES MOUNTED THEREON, AND SAID BLADES BEING ADJUSTABLE IN PITCH ABOUT AXES EXTENDING SUBSTANTIALLY RADIALLY OF SAID HUB; CLUTCH MEANS CONNECTED TO AND ROTATABLE WITH SAID SHAFT; DRIVE MEANS ON SAID HUB ENGAGEABLE WITH SAID CLUTCH MEANS IN ONE DIRECTION OF ROTATION; AND PITCH SHIFTING MEANS ON SAID CLUTCH MEANS AND ENGAGING SAID ROTOR BLADES TO SHIFT SAID BLADES TO AUTOROTATION PITCH WHEN SAID CLUTCH MEANS IS RETARDED.
Claim 2
Dependent Claim
95 words
AUTOMATIC AUTO-ROTATION MEANS FOR AN AIRCRAFT SUSTAINING ROTOR, COMPRISING: A DRIVEN SHAFT; A HUB FREELY ROTATABLY MOUNTED ON SAID SHAFT; SAID HUB HAVING A PLURALITY OF ROTOR BLADES MOUNTED THEREON, AND SAID BLADES BEING ADJUSTABLE IN PITCH ABOUT AXES EXTENDING SUBSTANTIALLY RADIALLY OF SAID HUB; CLUTCH MEANS CONNECTED TO AND ROTATABLE WITH SAID SHAFT; DRIVE MEANS ON SAID HUB ENGAGEABLE WITH SAID CLUTCH MEANS IN ONE DIRECTION OF ROTATION; AND PITCH SHIFTING MEANS ON SAID CLUTCH MEANS AND ENGAGING SAID ROTOR BLADES TO SHIFT SAID BLADES TO AUTOROTATION PITCH WHEN SAID CLUTCH MEANS IS RETARDED.
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) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |