US PATENT SUBCLASS 187 / 326
.~.~ Barrier shifted by drive-means powered by motion of load support

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}
325  DF  .~ Including barrier mounted at landing {5}
326.~.~ Barrier shifted by drive-means powered by motion of load support {3}
327  DF  .~.~.~> Having endless driving belt in drive-means
328  DF  .~.~.~> Having rotatably driven drum and cable pulled thereby in drive-means
329  DF  .~.~.~> Having cable and guiding pulley therefor in drive-means

DEFINITION

Classification: 187/326

Barrier shifted by drive means powered by motion of load support:

(under subclass 325) Subject matter wherein the stationary path blocking means is selectively moved to prevent or allow passage of the load by drive-means* powered by contact with a moving load-underlying support surface, or by structure attached to the load-underlying support surface, of an elevator.