US PATENT SUBCLASS 254 / 285
.~.~.~.~.~ Plural elements

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}
283  DF  .~.~.~ Having rotatable, cable guiding, pulley wheel element spaced from drums {2}
284  DF  .~.~.~.~ Element repositionable relative to at least one of the drums {1}
285.~.~.~.~.~ Plural elements

DEFINITION

Classification: 254/285

Plural elements:

(under subclass 284) Apparatus wherein two or more rotatable, cable-guiding, pulley wheel elements are spaced from the drums, at least one of the elements changes its position or attitude in relationship to the drums.