US PATENT SUBCLASS 187 / 313
WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT

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

313WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT {4}
314  DF  .~> Operation variable for emergency, maintenance, or abnormal condition
315  DF  .~> Includes motor or motor driven linkage for shifting barrier {3}
325  DF  .~> Including barrier mounted at landing {5}
334  DF  .~> Including slideably mounted barrier on load support {1}

DEFINITION

Classification: 187/313

WITH BARRIER FOR REGULATING ACCESS TO LOAD SUPPORT:

(under the class definition) Subject matter provided with means (e.g., gate, door) which allows or prevents the passage of a load (e.g., freight, rider) entering or leaving the load-underlying support surface by selectively moving, relative to the path of travel of the load, into a blocking or unblocking position.

SEE OR SEARCH CLASS

49, Movable or Removable Closures, in appropriate subclasses, for door structure in combination with merely named elevator structure (e.g., car, shaft).