192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1991-04-02
1993-03-30
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
74425, 74606R, 49 28, B60K 4120, E05F 1510
Patent
active
051975823
ABSTRACT:
An electric operator for a sliding door mounted for sliding movement along a track, comprising a motor having an iron cooling flywheel disposed on a drive shaft thereof, the flywheel being provided for imparting a predetermined amount of inertia for starting and stopping of the motor such that the operation of the motor is characterized by a soft start and stop. A worm gear reducer is connected to the drive shaft for effecting a predetermined reduction ratio of rotation. A limit switch is coupled to the reducer for limiting rotation of the drive shaft to a predetermined number of rotations, and apparatus is provided for coupling rotation of the drive shaft to the linear movement of the sliding door along the track.
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Bonck Rodney H.
Gable R. Lewis
Northern Eureka Refrigeration Co. Limited
Pitts Andrea
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