Rotary electric motor

Details Rotary electric motor Rotary electric motor

1975-02-04

1977-06-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310257, H02K 2114

Patent

active

040299805

ABSTRACT:
A clock with a rotary drive motor having a pair of axially aligned stator subassemblies with identical molded frame parts with interfitting end portions rotatably supporting a permanent magnet rotor and take-off gears. A separate axially extending U-shaped pole piece is mounted on each frame part to provide four stator poles equiangularly spaced about the axis of the rotor, and each frame part forms a coil bobbin for winding a stator coil for the respective pole piece.

REFERENCES:
patent: 2582652 (1952-01-01), Petersen
patent: 2814746 (1957-11-01), Boerdijk
patent: 2993131 (1961-07-01), Trevitt
patent: 3219862 (1965-11-01), Kieffert
patent: 3234418 (1966-02-01), Tomaro, Jr.
patent: 3437897 (1969-04-01), Lenny
patent: 3495111 (1970-02-01), Haydon
patent: 3560775 (1971-02-01), Welter
patent: 3652884 (1972-03-01), Uuffray
patent: 3733504 (1973-05-01), Dennis

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