US PATENT SUBCLASS 187 / 327
.~.~.~ Having endless driving belt in drive-means

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  DF  .~.~ Barrier shifted by drive-means powered by motion of load support {3}
327.~.~.~ Having endless driving belt in drive-means

DEFINITION

Classification: 187/327

Having endless driving belt in drive means:

(under subclass 326) Drive-means* having a flaccid element (e.g., chain) formed into a continuous loop which transmits force to the path blocking means when moved around a closed path by the power source.