B - Operations – Transporting – 23 – Q
Patent
B - Operations, Transporting
23
Q
29/14, 74/206
B23Q 3/00 (2006.01) B23Q 5/28 (2006.01) B23Q 5/40 (2006.01) F16H 25/20 (2006.01) G05B 19/35 (2006.01)
Patent
CA 1220018
ABSTRACT OF THE DISCLOSURE A motorized nut for use in conjunction with a fixedly secured lead screw for displacing a movable member along a fixed member into which the lead screw is journaled parallel to the desired path of member movement, includes an induction motor whose case is rigidly secured to the movable member. The motor rotor is made hollow so as to allow the lead screw to ex- tend coaxially therethrough. A pair of nuts are each secured in a separate one of the ends of the tubular motor rotor for threadedly engaging the lead screw so that as the motor rotor rotates in response to motor excitation, the motor stator and hence, the movable member, are displaced on the movable member along the axis of the ball screw.
423483
Kearney & Trecker Corporation
Marcoux & Sher Swabey Mitchell Houle
LandOfFree
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