Rotor for electronic wristwatch step motor

Details Rotor for electronic wristwatch step motor Rotor for electronic wristwatch step motor

1974-12-09

1976-03-16

Miller, Jr., George H.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, G04C 300, H02K 2112

Patent

active

039436985

ABSTRACT:
A high performance rotor for an electronic wristwatch step motor and method of forming same is provided. A rotor pinion has a high performance permanent magnet rotor mounted thereto. The permanent magnet rotor includes a brittle permanent magnet core, and a reinforcing plate, the combination of the permanent magnet core and reinforcing plate allowing the high performance magnetic rotor to be interference fit upon the rotor pinion to effect an improved rotor construction.

REFERENCES:
patent: 3007067 (1961-10-01), Snyder
patent: 3473061 (1969-10-01), Soehner et al.
patent: 3858308 (1975-01-01), Peterson

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