Portable spray unit

Claim 1

In combination, a portable tank spray unit detachably mounted on a small tractor lawn mower, comprising: a frame assembly having a horizontally oriented frame, said frame including a flat floor member, a hitch bar rigidly attached to the floor for pivotally connecting the frame to the rear hitch of the tractor, said frame assembly further including a horizontally extending, U-shaped cradle having a lower portion rigidly secured to said floor and vertically oriented front and rear walls oriented transversely to the direction of travel of the tractor; an attachment assembly for suspending cradle, said attachment assembly including a plurality of straps passing over and under the tank and through the front and rear walls of the cradle, the weight of the tank being supported by said straps, and a plurality of adjustable tensioning lines connected between the front wall and the chassis of the tractor for connecting the frame assembly to the rear of the tractor; a spray system carried by the frame, including, an electric pump having an intake line connected to the tank and having a discharge line, said pump being powered by the tractor battery; a pressure regulator having an intake from said discharge line and having an outlet forming a main flow line; a pair of spaced apart vertical bars secured to the rear walls of the cradle and having a plurality of vertically space holes; a rigid horizontal bar detachably secured to selected holes on the vertical bars and having a plurality of horizontally spaced apart holes; a plurality of spray nozzles detachably secured to selected holes on the horizontal bar; and means for connecting the main flow line to the plurality of individual spray nozzles.