Electromagnetic assembly

Details Electromagnetic assembly Electromagnetic assembly

1984-02-29

1985-09-10

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335265, H01F 708

Patent

active

045409650

ABSTRACT:
An electromagnet assembly is provided. It has a first movable core and a second movable core provided in association with a coil. The first movable core is energized toward the second movable core by a first spring while the second movable core is urged in the direction away from the first movable core by a second spring which has larger biasing force than that of the first spring. When the second movable core is attracted by magnetic excitation of the coil, the first movable core is pressed downwards by the second movable core.

REFERENCES:
patent: 2991799 (1961-07-01), Littlefield
patent: 3988706 (1976-10-01), Springer
patent: 4327345 (1982-04-01), Kelso et al.

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