Electric micro motor for a timepiece

Details Electric micro motor for a timepiece Electric micro motor for a timepiece

1975-02-19

1977-02-01

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 58 23D, H02K 2112

Patent

active

040063747

ABSTRACT:
An electric micro motor for a timepiece comprises a rotor having a portion formed of a permanent magnet and a pair of magnetic stator pieces disposed in spaced-apart relationship with the rotor disposed therebetween. A pair of non-magnetic coupling members couple together the stator pieces and rotatably support the rotor. The rotor-stator pieces-coupling members assembly is contained within a magnetic cylinder so as to shield the micro motor from external magnetic noise.

REFERENCES:
patent: 3732685 (1973-05-01), Haydon
patent: 3737695 (1973-06-01), Kilmer
patent: 3747320 (1973-07-01), Wuffray
patent: 3803430 (1974-04-01), Da Costa

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