US PATENT SUBCLASS 239 / 728
.~.~.~ Center pivot

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

722  DF  MOBILE DISTRIBUTOR {3}
723  DF  .~ Irrigation device {3}
726  DF  .~.~ Nozzles spaced along mobile pipeline {8}
728.~.~.~ Center pivot {2}
729  DF  .~.~.~.~> With noncircular coverage
730  DF  .~.~.~.~> Including means allowing articulation of adjacent pipe sections {1}

DEFINITION

Classification: 239/728

Center pivot:

(under subclass 726) Apparatus wherein the conduit has one end thereof secured to a pivot point fixed with respect to the ground; and wherein the vehicular support means is radially outwardly spaced from the pivot towards the other end of the conduit which is translatable so that the conduit is constrained to move in an arcuate path about the pivot point.