US PATENT SUBCLASS 187 / 280
.~.~.~ Actuated by location of access barrier or its lock

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

250  DF  HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL {6}
276  DF  .~ Includes control for power source of drive-means {6}
277  DF  .~.~ With specific electrical component {9}
280.~.~.~ Actuated by location of access barrier or its lock

DEFINITION

Classification: 187/280

Actuated by location of access barrier or its lock:

Control* under subclasses 277 in which the information input component has its operation induced by either (a) the position of a door which allows or prevents the passage of a load onto the load-underlying support surface or (b) the position of a device having the sole function of holding such a door in its load blocking or unblocking position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

301, for a mechanical control* for the power source of a drive-means* actuated by the location of an access barrier or its lock.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.62+, particularly subclass 61.65, for a circuit maker or breaker actuated by the operation of a closure, closure operator or closure accessory.