Electric motor

Details Electric motor Electric motor

1974-12-20

1976-04-27

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310218, 310254, 310266, H02K 118

Patent

active

039537501

ABSTRACT:
A direct current permanent magnet electric motor is disclosed which comprises a hollow rotatable armature, magnet means mounted concentrically with and spaced radially from the armature, and one or more pairs of pole pieces which directly contact opposite ends of the magnet means and are shaped so that they extend longitudinally or axially between the magnet means and the armature.

REFERENCES:
patent: 490449 (1893-01-01), Lundell
patent: 3356877 (1967-12-01), Burr

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