Three pole electromagnet

Details Three pole electromagnet Three pole electromagnet

1977-10-19

1978-12-26

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335277, H01F 708

Patent

active

041318650

ABSTRACT:
An electromagnet having a stationary core and a movable armature, each having three pole faces, forms a magnetic circuit having three substantially parallel legs when the core and the armature are brought together. The center leg of the magnetic circuit includes a demagnetizing airgap combined with a non-magnetic coating on a center pole face, which coating is more resistant to wear than the material of the uncoated pole faces.

REFERENCES:
patent: 2239267 (1941-04-01), Jeffrey
patent: 3573690 (1971-04-01), Jones

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