Multi-functional electric stepper motor assembly having...

Details Multi-functional electric stepper motor assembly having... Multi-functional electric stepper motor assembly having...

2005-11-22

2005-11-22

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S216055, C310S049030, C310S261100

Reexamination Certificate

active

06967425

ABSTRACT:
An electric stepper motor having increased motor torque includes a thru-hole, a rotor and a stator. The thru-hole allows use with a chamber and provides transport of hardware and elements into the chamber. A first and second pair of rotor cups separated by a non-magnetic spacer disc provide increased motor torque.

REFERENCES:
patent: RE31950 (1985-07-01), Binns
patent: 4542313 (1985-09-01), Di Pietro
patent: 6002186 (1999-12-01), Coutu et al.
patent: 6201334 (2001-03-01), Sargeant et al.

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