Linear motor

Details Linear motor Linear motor

1984-11-28

1987-07-07

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

318135, H02K 4100

Patent

active

046789510

ABSTRACT:
A linear motor driving a carriage used in a magnetic memory. The motor includes a rotor portion having a hollow sleeve like member extending outwardly from the carriage at the side opposite to the magnetic head mounting portion of the carriage and a driving coil wound around the forward end of the hollow member; and a stator portion on the frame body of the magnetic memory and having a central yoke disposed within the hollow member along the direction of carriage movement, a U-shaped yoke surrounding the driving coil with the legs thereof being parallel to the central yoke, and a pair of permanent magnets mounted on the opposed faces of the legs of the U-shaped yoke. By means of this linear motor, the magnetic memory can be reduced in dimension.

REFERENCES:
patent: 3505544 (1970-04-01), Helms
patent: 3760206 (1973-09-01), Hertrich
patent: 4247794 (1981-01-01), Jooss et al.
patent: 4318038 (1982-03-01), Munehiro
patent: 4427905 (1984-01-01), Sutton

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