US PATENT SUBCLASS 172 / 468
.~ Plural tools, independently actuatable

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.~ Plural tools, independently actuatable {3}
469  DF  .~.~> By single selectively connectable actuator
470  DF  .~.~> With separate actuator for concurrent lift or with interlock
471  DF  .~.~> Three or more independent actuators

DEFINITION

Classification: 172/468

(under subclass 452) Apparatus in which actuating means are provided for lifting a plurality of earth working elements to transport position and said means are operable to lift one of said elements independently of another element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

140, for diverse tools having independent lift actuators.

230+, for parallel separate tools alternating for right or left hand operation having independently operable means for alternating the operating position of the tools, as by raising and lowering the latter.

300+, for a plurality of tools mounted ahead of the rear and behind a motor vehicle and having independent left actuators.

304, for plural independently actuatable tools carried forward of the rear of a motor vehicle.