72399025
Aug 2, 1971
Jan 2, 1973
CLUTCH AND BACKSTOP ASSEMBLIES FOR USE IN POWER TRAINS FOR ONE DIRECTION ROTATION SUCH AS DRIVING CENTRIFUGAL PUMPS, BLOWERS, COMPRESSORS, ROTARY KILNS, CONVEYORS, MIXERS, AND THE LIKE, OR POWER TRAINS IN WHICH DUAL DRIVE IS EMPLOYED, SUCH AS POWER TRAINS UTILIZING A PLURALITY OF CONSTANT SPEED MOTORS OR A DRIVE MOTOR AND AN EMERGENCY STANDBY MOTOR, AND THE LIKE
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