US PATENT SUBCLASS 254 / 312
.~.~.~.~ Including power transmitting pulley and rope or belt either in drive or in cable return means

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}
278  DF  .~.~ Plural drums or drum with plural distinct sections {7}
294  DF  .~.~.~ Having common drive source or mechanically interlinked drive trains {10}
312.~.~.~.~ Including power transmitting pulley and rope or belt either in drive or in cable return means

DEFINITION

Classification: 254/312

Including power transmitting pulley and rope or belt either in drive or in cable return means:

(under subclass 294) Apparatus wherein either (a) the interlinked drive trains for rotating the drums when the cable is pulled to transport or shift the object or objects, or (b) a means for rotating the drums and returning the object-contacting portion of the cable to its original position in relationship to one of the drums after the load has been transported or shifted, include at least one power-transmitting, rotatable element having a generally circular perimeter adapted for contact with either a driven or a driving power-transmitting rope or endless belt which is partially wrapped around it.

(1) Note. The driven or driving rope or belt of this subclass is never attached or connected to the object being moved.

SEE OR SEARCH CLASS

187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,

263, for an elevator supported by a cable which is pulled by a driving drum or sheave, the drum or sheave is driven by means of a hand rope.