Method of switching an electromagnetic actuator

Details Method of switching an electromagnetic actuator Method of switching an electromagnetic actuator

1996-07-30

1997-10-28

Hecker, Stuart N.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

318128, 361159, H01F 708, H02K 3300

Patent

active

056821271

ABSTRACT:
A method of switching an electromagnetic actuator which includes an armature movable along a path of travel and two electromagnets having respective solenoids, disposed at opposite ends of the path of travel for alternatingly attracting the armature. The method includes the steps of alternatingly applying a supply voltage to the electromagnets for alternatingly causing a supply current to flow therethrough for effecting a reciprocating motion of the armature; and applying an induced current, generated by an induced voltage appearing across one of the solenoids upon removal of the supply current from the one solenoid, to the other of the solenoids until the supply voltage applied to the other solenoid is greater than the induced voltage and the supply voltage across the other solenoid is capable of maintaining an attained current flow therethrough.

REFERENCES:
patent: 809796 (1906-01-01), Grabosch
patent: 4080552 (1978-03-01), Brown
patent: 4884954 (1989-12-01), Van Niekerk
patent: 4908731 (1990-03-01), Richeson, Jr.
patent: 4969662 (1990-11-01), Stuart

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