US PATENT SUBCLASS 172 / 485
.~ Power actuator with manual adjusting or supplemental manual actuating means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


172 /   HD   EARTH WORKING

452  DF  WITH ACTUATOR ADAPTED TO LIFT TOOL FOR TRANSPORT ON WHEELED FRAME OR BROADLY CLAIMED IMPLEMENT {37}
485.~ Power actuator with manual adjusting or supplemental manual actuating means {2}
486  DF  .~.~> Manual actuation coextensive with power
487  DF  .~.~> Constant height depth adjustment

DEFINITION

Classification: 172/485

(under subclass 452) Apparatus in which the actuator includes a power means comprising a servomotor or a power take-off and in addition a lever means manipulable by an attendant for moving the earth working element or the power means or a part thereof to effect an adjustment of the earth working element by human power or for acting as an adjustable stop to alter the range of movement imparted to the earth working element by the power means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

303, for tools mounted ahead of the rear of a motor vehicle and having a power actuator with a manual adjusting or actuating means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

625+, for alternate manual or power operators.