US PATENT SUBCLASS 172 / 797
.~.~ For adjustment about longitudinal axis


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

781  DF  SCRAPER BETWEEN FRONT AND REAR GROUND SUPPORTS OF VEHICLE {12}
795  DF  .~ Specific actuator between frame and scraper {2}
797.~.~ For adjustment about longitudinal axis


DEFINITION

Classification: 172/797

(under subclass 795) Apparatus in which the actuator adjusts the scraper about an axis lying in a horizontal plane and extending in the direction of the line of travel of the vehicle.

(1) Note. An axis lying in a horizontal plane and perpendicular to the longitudinal extent of the scraper is considered to be an axis under this definition.

(2) Note. Devices under this definition usually comprise a pair of actuators which may be operated together to lift the scraper about a horizontal transverse axis passing through a draft connection.

SEE OR SEARCH THIS CLASS, SUBCLASS:

782+, for a shoulder-forming scraper and an actuator for tilting it about a generally longitudinal axis.

791+, for a grading scraper adjusted relative to the vehicle frame by three or more actuators, including one or more actuators for adjusting the scraper about a horizontal longitudinal axis.