Electricity: motive power systems – Positional servo systems – 'feelback' systems
Patent
1984-06-27
1985-01-15
Dobeck, B.
Electricity: motive power systems
Positional servo systems
'feelback' systems
318687, 318696, 318135, G05B 1101
Patent
active
044940610
ABSTRACT:
Control apparatus, for example a thrust demand unit or "throttle box" for an aircraft, comprises a manually movable control grip coupled to drive motor means comprising twin magnetically interactive components and operable for automatic movement of the control grip, e.g. under autopilot control, while allowing override by the operator e.g. the pilot of an aircraft. The drive motor may be a linear motor, particularly a motor comprising a rod and rider each having pole teeth defining relative positions of minimum magnetic reluctance between the rod and rider, and winding means for moving the rider stepwise between said positions.
REFERENCES:
patent: 3628145 (1971-12-01), Kihlberg
patent: 3771037 (1973-11-01), Bailey, Jr.
patent: 3832610 (1974-08-01), Shimizu et al.
patent: 4012676 (1977-03-01), Giebler
patent: 4283764 (1981-08-01), Crum et al.
patent: 4320493 (1982-03-01), Kikuchi et al.
patent: 4359677 (1982-11-01), Dennon
patent: 4367532 (1983-01-01), Crum et al.
IBM Tech. Bulletin, vol. 14, No. 12, May 1972, p. 3820, Track Seeking Device, F. Kurzweil.
British Aerospace Public Limited Company
Dobeck B.
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