US PATENT SUBCLASS 172 / 79
.~.~ Tool driven from prime mover on vehicle


Current as of: June, 1999
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172 /   HD   EARTH WORKING

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
76  DF  .~ Implement with ground support for depth control {3}
79.~.~ Tool driven from prime mover on vehicle


DEFINITION

Classification: 172/79

(under subclass 76) Apparatus in which the earth working element of the driven implement is drivingly connected by a transmission means to a power source on the vehicle.

(1) Note. The power source of this definition may be a self-contained prime mover for propelling the vehicle or an auxiliary self-contained power means; for example, an auxiliary gasoline or Diesel engine, an electric motor, etc. The power source does not include a mere power take-off from a driven or rolling ground wheel of the propelling vehicle. For such devices see subclasses 76 and 105+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

125, for drive details in the transmission means from a power source on a vehicle to a driven earth working element carried thereby.

SEE OR SEARCH CLASS

171, Unearthing Plants or Buried Objects,

45, for a tractor powered trailing unearthing unit.