US PATENT SUBCLASS 187 / 250
HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL

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

250HAVING SPECIFIC LOAD SUPPORT DRIVE-MEANS OR ITS CONTROL {6}
251  DF  .~> Includes linking support cable (e.g., rope, chain) in drive-means {2}
267  DF  .~> Includes threaded rider mating with support screw in drive-means {1}
269  DF  .~> Includes scissored supporting levers in drive-means
270  DF  .~> Includes gear on support mating with stationary rack or chain {1}
272  DF  .~> Includes fluid supporting ram in drive-means {3}
276  DF  .~> Includes control for power source of drive-means {6}

DEFINITION

Classification: 187/250

HAVING SPECIFIC LOAD SUPPORT DRIVE MEANS OR ITS CONTROL:

(under the class definition) Subject matter having either (a) a particular structural aspect of drive-means* (e.g., cable drum) for transmitting to the load-underlying support surface of the elevator the force necessary to shift the load between its entry and exit levels or (b) a particular aspect of a control* for regulating the operation of such a drive-means* detailed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

210+, for specific drive-means* for the vehicle support of a vehicle lift.

233+, for specific drive-means* for the load support of an industrial lift truck.