Patent US3097701A successfully refreshed from Google Patents.
US3097701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade folding mechanism
Assignee: RTX Corp
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Filing: 1960-10-27
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Granted: 1963-07-16
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Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 Michel D Buivid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:58
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/46; B64C27/473; B64C27/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A HELICOPTER, A ROTOR, A BLADE, AN ARM PROJECTING FROM SAID ROTOR FOR SAID BLADE, MEANS MOUNTING SAID BLADE ON SAID ARM, SAID ARM BEING HOLLOW WITH AN OPEN OUTER END, SAID MEANS MOUNTING SAID BLADE TO SAID ARM INCLUDING A PIVOT FOR FOLDING SAID BLADE WITH RESPECT TO SAID ROTOR, SAID MEANS MOUNTING SAID BLADE TO SAID ARM INCLUDING A RELEASABLE HOLDING MEANS FOR FIXEDLY POSITIONING SAID BLADE WITH RELATION TO SAID ARM PREVENTING MOVEMENT ABOUT SAID PIVOT, ACTUATING MEANS FIXED TO SAID BLADE FOR MOVING IT ABOUT ITS PIVOT, AND OPERATING MEANS POSITIONED IN SAID HOLLOW ARM FOR CONTROLLING SAID ACTUATING MEANS.
Claim 2
Dependent Claim
105 words
IN A HELICOPTER, A ROTOR, A BLADE, AN ARM PROJECTING FROM SAID ROTOR FOR SAID BLADE, MEANS MOUNTING SAID BLADE ON SAID ARM, SAID ARM BEING HOLLOW WITH AN OPEN OUTER END, SAID MEANS MOUNTING SAID BLADE TO SAID ARM INCLUDING A PIVOT FOR FOLDING SAID BLADE WITH RESPECT TO SAID ROTOR, SAID MEANS MOUNTING SAID BLADE TO SAID ARM INCLUDING A RELEASABLE HOLDING MEANS FOR FIXEDLY POSITIONING SAID BLADE WITH RELATION TO SAID ARM PREVENTING MOVEMENT ABOUT SAID PIVOT, ACTUATING MEANS FIXED TO SAID BLADE FOR MOVING IT ABOUT ITS PIVOT, AND OPERATING MEANS POSITIONED IN SAID HOLLOW ARM FOR CONTROLLING SAID ACTUATING MEANS.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |