US PATENT SUBCLASS 254 / 339
.~.~ Having plural, distinct drive sources or discrete drive trains

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

264  DF  APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4}
266  DF  .~ Device includes rotatably driven, cable contacting drum {34}
339.~.~ Having plural, distinct drive sources or discrete drive trains {1}
340  DF  .~.~.~> Including two or more motors

DEFINITION

Classification: 254/339

Having plural, distinct drive sources or discrete drive trains:

(under subclass 266) Apparatus in which the drive for the drum includes either (a) two or more distinct drive sources, (e.g., a motor and a hand-operated crank, two spaced hand-operated cranks) or (b) two or more discrete drive trains, (i.e., they do not share either a common drive source or a common power transmitting component) whose operations do not depend directly on one another.