US PATENT SUBCLASS 187 / 318
.~.~ Shifts barrier mounted at landing

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

313  DF  WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT {4}
315  DF  .~ Includes motor or motor driven linkage for shifting barrier {3}
318.~.~ Shifts barrier mounted at landing {4}
319  DF  .~.~.~> Through coupling with barrier on load support
320  DF  .~.~.~> Plural interconnected motors shift barriers at different landings
321  DF  .~.~.~> Motor stationarily mounted and linkable to barriers on different landings {1}
323  DF  .~.~.~> Nonelectric motor

DEFINITION

Classification: 187/318

Shifts barrier mounted at landing:

(under subclass 315) Subject matter wherein the drive-means* moves path blocking means which is stationarily positioned at a landing* to allow or prevent passage of the load between the load-underlying support surface and the landing*.