US PATENT SUBCLASS 212 / 169
GROUND WHEEL OPERATED


Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

169GROUND WHEEL OPERATED


DEFINITION

Classification: 212/169

GROUND WHEEL OPERATED:

(under the class definition) Apparatus including a wheel which is caused to contact a surface upon which the apparatus is supported and which rotates in response to movement of the apparatus across the surface, and wherein power transmission means is provided to utilize the wheel's rotational motion to operate the hoist (e.g., hoisting drum, boom*, trolley*, etc.).