US PATENT SUBCLASS 172 / 470-- .~.~ With separate actuator for concurrent lift or with interlock

US PATENT SUBCLASS 172 / 470
.~.~ With separate actuator for concurrent lift or with interlock

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

452	DF	WITH ACTUATOR ADAPTED TO LIFT TOOL FOR TRANSPORT ON WHEELED FRAME OR BROADLY CLAIMED IMPLEMENT {37}
468	DF	.~ Plural tools, independently actuatable {3}
470		.~.~ With separate actuator for concurrent lift or with interlock

DEFINITION

Classification: 172/470

Apparatus under subcass 468 in which (1) an additional actuating means is provided to lift all the earth working elements simultaneously or (2) means are provided for selectively connecting two or more of the earth working elements to be lifted together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

406, for wheeled implements having an actuator for simultaneously adjusting wheels on different axles and having an additional actuator for changing the relative position of the wheels.