US PATENT SUBCLASS 187 / 276
.~ Includes control for power source of drive-means

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.~ Includes control for power source of drive-means {6}
277  DF  .~.~> With specific electrical component {9}
300  DF  .~.~> Actuated by presence of obstruction in shaft
301  DF  .~.~> Actuated by location of access barrier or its lock
302  DF  .~.~> Actuated by load support contacting trip in shaft {1}
305  DF  .~.~> Actuated by load support speed sensor or governor
306  DF  .~.~> Actuated by human operator engaging specific input part {2}

DEFINITION

Classification: 187/276

Includes control for power source of drive- means:

(under subclass 250) Subject matter including a control* which regulates the operation of either (a) the force generating means of the drive-means* (e.g., motor) or (b) a component of the force transmitting linkage of the drive-means* not bearing the weight of the load-underlying support surface (e.g., fluid valve for fluid ram).

SEE OR SEARCH THIS CLASS, SUBCLASS:

209, for a stationary lift for a roadway vehicle having safety cutoff means for its drive-means*.

224, for an industrial lift truck having a control* for its load support drive-means*.