US PATENT SUBCLASS 187 / 264
.~.~.~ With separate biasing means maintaining cable tension

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.~.~.~ With separate biasing means maintaining cable tension {1}
265  DF  .~.~.~.~> Includes spring supported pulley

DEFINITION

Classification: 187/264

With separate biasing means maintaining cable tension:

(under subclass 254) Drive-means* wherein the cable* linking the drum to the load support surface of the elevator has means engaging or attached to it, other than the drum, which applies a force to the cable* to keep it at the proper tautness.