Patent ID: 6531798
Filing Date: 2003-03-11
Classification: F16H,H02K,Y10T

Abstract:
A linear/rotary motor, comprising:(a) first and second stator structures, having magnetically coupled thereto, respectively, first and second rotors; (b) a first, externally threaded shaft fixedly attached to said first rotor and extending axially therefrom, such that rotation of said first rotor causes rotation of said first, externally threaded shaft; (c) a second shaft, having a splined external surface, extending through a complementarily shaped opening defined through said second rotor, and axially movable with respect thereto, such that rotation of said second rotor causes rotation of said second shaft; (d) said second shaft including threaded means cooperatively engaging said first, externally threaded shaft, such that rotation of said first, threaded shaft can cause linear motion of said second, cylindrical shaft; and (e) said first and second rotor structures being adjacent but separated axially at most by a bearing structure.