Patent ID: 6211591
Filing Date: 2001-04-03
Classification: A61B,B25B,B25J,H02K

Abstract:
A linear/rotary electromagnetic device, comprising:(a) a housing;(b) first and second stators disposed in said housing;(c) first and second rotors disposed in said housing and magnetically interacting, respectively, with said first and second stators;(d) said first stator and said first rotor comprising a rotary motor;(e) said second stator and said second rotor comprising an electromagnetic brake;(f) a shaft extending through a portion of said housing and axially through said first and second rotors, said shaft having a threaded portion extending through a complementarily threaded portion of one of said first and second rotors;whereby;(g) when said electromagnetic brake is locked and said rotary motor is rotated in a first direction, said shaft will move axially in a first direction;(h) when said electromagnetic brake is locked and said rotary motor is rotated in a second direction, said shaft will move axially in a second direction; and(i) when said electromagnetic brake is released and said rotary motor is rotated, said shaft will rotate with said rotary motor.