US PATENT SUBCLASS 172 / 3
.~ Motive power control


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

2  DF  AUTOMATIC POWER CONTROL {5}
3.~ Motive power control


DEFINITION

Classification: 172/3

(under subclass 2) Apparatus in which the power means controlled is for propelling the apparatus over the ground.

(1) Note. This subclass includes brake or clutch control for the propelling means.

(2) Note. The mere recitation of an implement by name only in combination with a power driven propelling means therefor having a mechanism for controlling the propulsion means in response to a condition of the implement, as for example, a mechanism for disengaging the clutch of a tractor when a pulled implement strikes an obstruction, is not enough for classification under this definition. See Class 180, Motor Vehicles, subclass 14.5 for such devices.

(3) Note. The mere recitation of an implement in combination with a power driven propelling means therefor including a means for adjusting the implement and a mechanism for con- trolling both the propelling means and the adjusting means for the implement is included in this definition.

SEE OR SEARCH CLASS

180, Motor Vehicles, 14.5, for vehicle trains with automatically responsive means for controlling the propelling means. A broadly named implement is considered a vehicle for Class 180.

901, Robots, subcollection 1 for a mobile robot device.