US PATENT SUBCLASS 187 / 265
.~.~.~.~ Includes spring supported pulley

Current as of: June, 1999
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187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

250  DF  HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL {6}
251  DF  .~ Includes linking support cable (e.g., rope, chain) in drive-means {2}
254  DF  .~.~ And rotatably driven drum pulling thereon {6}
264  DF  .~.~.~ With separate biasing means maintaining cable tension {1}
265.~.~.~.~ Includes spring supported pulley

DEFINITION

Classification: 187/265

Includes spring supported pulley:

(under subclass 264) Drive-means* wherein the cable* tauting means includes (a) a cable* directing element (e.g., pulley) positioned along the path of the cable* and provided with a generally circular perimeter which rotates about an axis through its center in response to the movement of the cable* over its perimeter and (b) spring means for movably mounting the cable* directing element to supporting structure.