US PATENT SUBCLASS 187 / 315
.~ Includes motor or motor driven linkage for shifting barrier

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.~ Includes motor or motor driven linkage for shifting barrier {3}
316  DF  .~.~> With specific electrical control therefor {1}
318  DF  .~.~> Shifts barrier mounted at landing {4}
324  DF  .~.~> Shifts sliding barrier on load support

DEFINITION

Classification: 187/315

Includes motor or motor driven linkage for shifting barrier:

(under subclass 313) Subject matter wherein the path blocking means is moved between its positions by drive-means* which includes either (a) a device which converts nonmechanical energy (e.g., electrical) or stored energy (e.g., fuels) into mechanical energy or (b) a structural linkage intended to be driven by such a device.

SEE OR SEARCH CLASS

49, Movable or Removable Closures,

324+, for an operator for moving a closure.