US3096045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter control mechanism
Assignee: Kaman Aircraft Corp
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Filing: 1961-10-09
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Granted: 1963-07-02
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Expires: 1981-10-09
Abstract
No abstract record available.
Inventors
- 👤 Harold S Hendrickson
- 👤 Nelson R Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:31
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A HELICOPTER CONTROL MECHANISM INCLUDING A PILOT OPERABLE STICK FOR COLLECTIVELY CHANGING AND CONTROLLING THE PITCHES OF THE BLADES OF THE HELICOPTER ROTOR, A FRICTION BRAKE OPERABLY CONNECATED WITH SAID STICK, AN ELECTRIC CIRCUIT INCLUDING AN ELECTROMAGNET WHICH IS CONNECTED TO SERVE UPON ENERGIZATION OR DE-ENERGIZATION TO APPLY OR RELEASE SAID BRAKE SO THAT IT IS EFFECTIVE OR INEFFECTIVE FOR RESISTING MOVEMENT OF THE STICK, AND A PILOT OPERABLE ELECTRIC SWITCH FOR CONNECTING OR DISCONNECTING AN AUTOMATIC PILOT SYSTEM TO CAUSE SAID SYSTEM TO BE EITHER OPERATIVE OR INOPERATIVE FOR ACTUATING SAID HELICOPTER CONTROL MECHANISM, SAID SWITCH INCLUDING CONTACTS IN SAID ELECTROMAGNET CIRCUIT WHICH SERVE TO CLOSE SAID CUIRCUIT SO AS TO ENERGIZE
Claim 2
Dependent Claim
113 words
A HELICOPTER CONTROL MECHANISM INCLUDING A PILOT OPERABLE STICK FOR COLLECTIVELY CHANGING AND CONTROLLING THE PITCHES OF THE BLADES OF THE HELICOPTER ROTOR, A FRICTION BRAKE OPERABLY CONNECATED WITH SAID STICK, AN ELECTRIC CIRCUIT INCLUDING AN ELECTROMAGNET WHICH IS CONNECTED TO SERVE UPON ENERGIZATION OR DE-ENERGIZATION TO APPLY OR RELEASE SAID BRAKE SO THAT IT IS EFFECTIVE OR INEFFECTIVE FOR RESISTING MOVEMENT OF THE STICK, AND A PILOT OPERABLE ELECTRIC SWITCH FOR CONNECTING OR DISCONNECTING AN AUTOMATIC PILOT SYSTEM TO CAUSE SAID SYSTEM TO BE EITHER OPERATIVE OR INOPERATIVE FOR ACTUATING SAID HELICOPTER CONTROL MECHANISM, SAID SWITCH INCLUDING CONTACTS IN SAID ELECTROMAGNET CIRCUIT WHICH SERVE TO CLOSE SAID CUIRCUIT SO AS TO ENERGIZE
References Cited (Backward Citations)
CA487202A
Cited
US1843966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |