US PATENT SUBCLASS 187 / 342
.~ Including closure bodily carried along shaft by load support

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

336  DF  WITH CLOSURE MEANS FOR SHAFT OPENING THROUGH LANDING {3}
342.~ Including closure bodily carried along shaft by load support

DEFINITION

Classification: 187/342

Including closure bodily carried along shaft by load support:

(under subclass 336) Subject matter wherein at least a portion of the means covering the passageway includes covering structure (e.g., hatch) completely detachable from the passageway formed in the landing*, this detachable covering structure being moved in at least one direction along the shaft* by the load-underlying support surface of an elevator, or structure attached thereto, when the surface or structure passes through the passageway.