Electromagnet, particularly for actuating the switches of a cont

Details Electromagnet, particularly for actuating the switches of a cont Electromagnet, particularly for actuating the switches of a cont

1989-03-30

1991-01-29

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335274, H01F 713

Patent

active

049889664

ABSTRACT:
An electromagnet is provided comprising a fixed yoke, a movable armature including a core concentric with an energization coil, and magnetizable plates separated from the yoke by a variable longitudinal air-gap, a return means providing the rest position of the armature, and a compensation device comprising a thin U shaped stirrup piece whose two legs cooperate with the ends of the plate, portions of this stirrup cooperate with inclined ramps of an adjustable rotary cam, placed concentrically with the core of the armature.

REFERENCES:
patent: 2419491 (1947-04-01), Gartner
patent: 2773156 (1956-12-01), Lowry et al.
patent: 4008449 (1977-02-01), Morris et al.
patent: 4463332 (1984-07-01), Everett

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