Electromagnetic actuator apparatus

Details Electromagnetic actuator apparatus Electromagnetic actuator apparatus

1980-02-19

1982-09-28

Dobeck, B.

Electricity: motive power systems

Linear-movement motors

318687, 310 14, G05B 1128

Patent

active

043520480

ABSTRACT:
An improved electromagnetic actuator apparatus comprising a plurality of circular concentric tubes of varying length arranged in length order nested about one another from shortest to longest. Solenoid coil assemblies are attached to each tube so that magnetic circuits are formed between adjacent solenoid coil assemblies attached to adjacent tubes. Stops are attached to each tube at the end opposite from the solenoid coil assemblies. One of the shortest tubes is connected to a frame by a positive motion stop in one direction. A return spring connects to a frame on one end and to a carriage attachment member which slides about the shortest concentric tube on the other end. Selective electric excitation of individual solenoid coil assemblies causes translation of said carriage attachment member. The return spring carries the means for carriage attachment back to a rest position when electrical excitation is removed.

REFERENCES:
patent: 3162796 (1964-12-01), Schreiber et al.
patent: 3219854 (1965-11-01), McLaughlin
patent: 3275964 (1965-11-01), Kumm
patent: 3430120 (1969-02-01), Kotaka et al.
patent: 3491319 (1970-01-01), Cox et al.
patent: 3870931 (1975-03-01), Myers

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