US PATENT SUBCLASS 187 / 314
.~ Operation variable for emergency, maintenance, or abnormal condition

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}
314.~ Operation variable for emergency, maintenance, or abnormal condition

DEFINITION

Classification: 187/314

Operation variable for emergency, maintenance, or abnormal condition:

(under subclass 313) Subject matter provided with means which changes, or allows changes to, the normal functioning of the path blocking means when (a) a serious crisis exists which could cause injury (e.g., fire, broken support cable*), (b) repair or cleaning of a component of the elevator is needed, or (c) an unusual situation occurs (e.g., landing* and car not correctly aligned).