US PATENT SUBCLASS 187 / 340
.~ Including transversely sliding closure

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}
340.~ Including transversely sliding closure {1}
341  DF  .~.~> Shifted by drive-means powered by load support motion

DEFINITION

Classification: 187/340

Including transversely sliding closure:

(under subclass 336) Subject matter wherein the means covering the passageway includes covering structure (e.g., door) which is (a) connected to the landing* by guide means which constrains its movement to rectilinear reciprocation in substantially a single primary direction intersecting the central axis of the shaft*, and (b) movable only bodily as a unit between its covering and uncovering positions.