Electromagnetic drive device and light quantity adjustment...

Details Electromagnetic drive device and light quantity adjustment... Electromagnetic drive device and light quantity adjustment...

2005-11-01

2005-11-01

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Oscillating

C396S463000, C335S272000, C335S225000, C336S198000

Reexamination Certificate

active

06960848

ABSTRACT:
An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor rotatably disposed in the coil frame through a rotational shaft, a transmission member for transmitting a rotation of the magnet rotor, and a coil wound around an outer periphery of the coil frame. The coil frame is formed of two coil frame halves divided vertically along the rotational shaft of the rotor, and the coil is wound in a direction crossing connection faces (joint faces) of the two coil frame halves on upper and lower end surfaces thereof.

REFERENCES:
patent: 4227164 (1980-10-01), Kitahara
patent: 4319823 (1982-03-01), Hashimoto
patent: 5334893 (1994-08-01), Oudet et al.
patent: 6798987 (2004-09-01), Horiike
patent: 2541274 (1997-04-01), None
patent: 2606159 (2000-07-01), None

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