Patent ID: 6966276

Claim:
A portable livestock sprayer comprising: a rigid frame adapted to be disposed upon a supporting surface during sprayer operation; a portal vertically defined above the frame defining a passageway through which livestock may move; a wheeled subframe pivoted to the frame that is transformable between a first, deployed orientation substantially parallel with the frame during sprayer towing, and a second, retracted orientation out of contact with said supporting surface during sprayer operation; a tank containing solution to be sprayed upon livestock; nozzle means for selectively spraying livestock; pump means for selectively forcing said solution through said nozzle means; control means for operating the sprayer, the control means comprising photo-eye means for detecting the presence of livestock to be sprayed, and; a shroud assembly adapted either to be coupled to the frame during sprayer transportation or deployed for preventing livestock from bypassing said portal, said shroud assembly comprising a pair of separate, extensible wings, each wing comprising an inner section adapted to be coupled to the frame and an outer, extensible section slidably telescoped to the inner section.