Patent ID: 6095677
Filing Date: 2000-08-01
Classification: A23G,A47J,B01F,F25C,H02K

Abstract:
A compact, automatically clutched, rotary drive for a driven member mounted in a first housing, comprisingan electric motor located outside of said first housing having a stator and a rotor, said rotor includes a first magnet with a plurality of circumferentially-arrayed poles, said stator producing a rotating electromagnetic field that interacts with said poles to produce a rotary output,a second magnet axially aligned with and physically coupled to rotate with, said rotor, said second magnet having a like plurality of circumferentially-arrayed poles that are also aligned by pole polarity with said poles of said first magnet, the lines of magnetic flux of said second magnet extending axially and principally in a direction away from said stator,a plate of a magnetizable material operatively connected to said driven member and rotatably mounted in said first housing in a closely spaced, axially-aligned relationship with said second magnet,whereby said second magnet induces a magnetic field in said plate to transmit torque to said plate from said electric motor.