US PATENT SUBCLASS 187 / 251
.~ Includes linking support cable (e.g., rope, chain) in drive-means

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.~ Includes linking support cable (e.g., rope, chain) in drive-means {2}
252  DF  .~.~> And reciprocatingly shifted pulley wheel pulling thereon {1}
254  DF  .~.~> And rotatably driven drum pulling thereon {6}

DEFINITION

Classification: 187/251

Includes linking support cable (e.g., rope, chain) in drive means:

(under subclass 250) Drive-means* including a cable* attached to the load underlying support surface and which (a) is part of the structural linkage needed to transmit power from the power source to the load-underlying support surface of the elevator and (b) bears at least a portion of the weight of the load-underlying support surface during its travel along the shaft*.

(1) Note. Class 254, Implements or Apparatus for Applying Pushing or Pulling Force, provides for the type of drive-means proper for this and the indented subclasses when the load support is merely named and no additional elevator structure (e.g., load support guide) is claimed.

SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force,

264+, for apparatus for lifting a load which contacts and pulls on a cable supporting the load.