US PATENT SUBCLASS 187 / 337
.~ Including pivoted 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}
337.~ Including pivoted closure {2}
338  DF  .~.~> Shifted by drive-means powered by load support motion
339  DF  .~.~> With closure latching means

DEFINITION

Classification: 187/337

Including pivoted closure:

(under subclass 336) Subject matter wherein at least a portion of the means covering the passageway includes covering structure (e.g., door) connected to the landing* in a manner allowing it to both (a) swing in an arcuate path about a constantly contacted connection point or region located on the landing* and (b) maintain movement between the covering structure and landing* at their contact point or region.