US PATENT SUBCLASS 187 / 319
.~.~.~ Through coupling with barrier on 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}
315  DF  .~ Includes motor or motor driven linkage for shifting barrier {3}
318  DF  .~.~ Shifts barrier mounted at landing {4}
319.~.~.~ Through coupling with barrier on load support

DEFINITION

Classification: 187/319

Through coupling with barrier on load support:

(under subclass 318) Subject matter wherein the path blocking means positioned at the landing* is detachably connected to distinct path blocking means attached to and traveling with the load-underlying support surface when both path blocking means are at the same landing* and a common energy converting device (i.e., motor) of the drive-means* therefor utilizes this connection to move both path blocking means simultaneously.