Electromagnetic switch means for a flow control device and the l

Details Electromagnetic switch means for a flow control device and the l Electromagnetic switch means for a flow control device and the l

1979-02-12

1980-11-25

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335193, 335234, H01F 708

Patent

active

042361320

ABSTRACT:
An electromagnetic switch which comprises an armature pivotally movable between first and second pivotal positions about a fulcrum positioned between its ends. Magnet means are positioned adjacent each of the armature ends and present opposite polarities outwardly from each end of the armature. Electromagnet core means define arms positioned adjacent the magnet means at each armature end, with the magnet means being each respectively movable toward and away from an arm when pivoting between the first and second pivotal positions. The armature can be moved between the first and second positions by changing the polarity of the electromagnet core means. In accordance with this invention, restraining means engagable with the armature for preventing the armature from pivoting into contact with the electromagnet core means are provided for prevention of noise and for preservation of the life of the magnet means.

REFERENCES:
patent: 2702841 (1955-02-01), Bernstein
patent: 3184651 (1965-05-01), Albosta
patent: 3501724 (1970-03-01), Westphal
patent: 3693125 (1972-09-01), Prouty

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