Moveable coil linear motor

Details Moveable coil linear motor Moveable coil linear motor

1984-02-21

1985-11-26

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 13, H02K 3300

Patent

active

045556458

ABSTRACT:
A linear motor comprising a moveable coil, a stationary core in which the coil moves, and a drive member including a shaft and a bearing, the shaft moveable in the bearing and passing through the core. In the preferred embodiment, the drive member includes a pair of circular plates connected by three shafts that slide in bearings passing through the motor core, with the coil attached to the periphery of one of the plates. Springs having varying coil spacing are seated between the plates and the motor core to damp the motor's motion, with the strongest damping at the ends of its reciprocating stroke.

REFERENCES:
patent: 3417268 (1968-12-01), Lace
patent: 3439198 (1969-04-01), Lee
patent: 3666977 (1972-05-01), Helms
patent: 4220878 (1980-09-01), Asano

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