Patent ID: 9572308
Date: 2017-02-21
CPC Classifications: A01M

Claim:
1. A field spraying device for spraying a liquid on over the top of a crop, comprising: a. a liquid supply tank; b. at least one spray boom extending from the device, the spray boom having a forward side facing the directional movement of the field spraying device in operation and an opposing rearward side, wherein the boom includes a liquid supply line connected to a plurality of nozzles along the length of the boom, wherein the plurality of nozzles spray the liquid over the top of a crop; c. a plurality of wind drift spoiler devices wherein each of the plurality of wind drift spoilers are positioned adjacent one of the plurality of nozzles on the forward side of the spray boom, wherein the wind drift spoiler device comprises a solid, non-absorbent downwardly depending deflector surface adjacent the nozzle to provide a solid air turbulence deflector barrier for the liquid sprayed from the nozzle, wherein the wind drift spoiler device includes a downwardly depending brush element, wherein the brush element is positioned to depend downwardly from the deflector surface, and d. air passes through openings between each of the plurality of wind drift spoiler devices.