Electric motor

Details Electric motor Electric motor

1976-02-23

1978-08-29

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310266, H02K 2126

Patent

active

041106458

ABSTRACT:
An improved yet relatively inexpensive motor is provided by mounting commercially-available magnets together with pole pieces to the interior surfaces of the housing of a motor. The pole pieces are then shaped in part, in situ, so as to form a cylindrical space between the pole pieces. A rotatable armature assembly and a stationary, magnetically-conductive core member are mounted within the cylindrical space formed by the shaped pole pieces with the armature assembly being radially-spaced from and disposed between the pole pieces on the one hand and the core member on the other hand.

REFERENCES:
patent: 2811658 (1957-10-01), Brainard
patent: 3209187 (1965-09-01), Angele
patent: 3293466 (1966-12-01), Henry-Baudot
patent: 3296471 (1967-01-01), Cochardt
patent: 3356877 (1967-12-01), Burr
patent: 3424578 (1969-01-01), Strnat et al.
patent: 3564705 (1971-02-01), Cochhardt
patent: 3828213 (1974-08-01), Yamashita et al.
patent: 3836802 (1974-09-01), Parker
patent: 3906268 (1975-09-01), DE Graffeuried
IBM Tech. Disclosure Bulletin, "Permanent Magnet DC Motor", Fisher et al., vol. 10, No. 8, 1/68 pp. 1253-1254.
"Permanent Magnet DC Motor", IBM Tech. Disclosure Bulletin, Fisher & Hu, vol. 10, No. 8, 1/68, pp. 1233, 1234.

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