US PATENT SUBCLASS 254 / 298
.~.~.~.~.~ Shiftable into and out of intermeshing engagement

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}
295  DF  .~.~.~.~ Including intermeshing gears in drive {7}
298.~.~.~.~.~ Shiftable into and out of intermeshing engagement

DEFINITION

Classification: 254/298

Shiftable into and out of intermeshing engagement:

(under subclass 295) Apparatus wherein at least one of the gears may be shifted into or out of engagement with another gear.