US PATENT SUBCLASS 172 / 814-- .~.~ Having means controlling drive for interconnected vehicles

US PATENT SUBCLASS 172 / 814
.~.~ Having means controlling drive for interconnected vehicles

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

810	DF	MOUNTING FOR PUSHED TOOL AT END OF MOTOR VEHICLE {3}
811	DF	.~ Transversely mounted blade (e.g., bulldozer, etc.) {11}
814		.~.~ Having means controlling drive for interconnected vehicles

DEFINITION

Classification: 172/814

Having means controlling drive for interconnected vehicles:

(under subclass 811) Apparatus wherein a blade is powered by a plurality of vehicles, each having its motive control operatively connected one with the other.

(1) Note. The vehicles may be side by side so each is directly linked to the blade, or they may be in tandem arrangement (i.e., one behind the other) so that only the vehicle in front is directly linked to the blade. However, one vehicle simply pushing another, each independently operated, is not considered appropriate for this subclass.