US PATENT SUBCLASS 254 / 358
.~.~ Drive includes sprocket wheel and chain

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}
358.~.~ Drive includes sprocket wheel and chain

DEFINITION

Classification: 254/358

Drive includes sprocket wheel and chain:

(under subclass 266) Apparatus wherein the drive includes at least one power transmitting rotatable wheel having a plurality of toothlike or other shaped projections on its periphery and a chain or apertured belt partially wrapped around the wheel and adapted to cooperate with the projections on the wheel.

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