Electromagnetic driving device

Details Electromagnetic driving device Electromagnetic driving device

1983-10-03

1985-09-10

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

310 15, H02K 3300

Patent

active

045409056

ABSTRACT:
An electromagnetic driving device for causing linear movement of a movable member. The device includes a fixed magnetic core around the entire length of which a coil is wound. The cross-sectional area of the central portion of the fixed magnetic core is greater than the cross-sectional area of the end portions of the fixed magnetic core so that the fixed magnetic core is not excessively heavy even if the stroke of the movable member is relatively large.

REFERENCES:
patent: 118538 (1871-08-01), Jones
patent: 2409857 (1946-10-01), Hines et al.
patent: 3943443 (1976-03-01), Kimura et al.
patent: 4259602 (1981-03-01), Kuribayashi et al.
patent: 4260914 (1981-04-01), Hertrich

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