Sprayer assembly for the spray treatment of crops and the like

Claim 1

A SPRAYER ASSEMBLY FOR THE SPRAY TREATMENTS OF FARMING CROPS AND THE LIKE, WHICH COMPRISES IN COMBINATION A FRAME; A TANK FOR TREATING LIQUID SUPPORTED ON THE FRAME; MEANS SUPPORTED ON THE FRAME DEFINING A TUNNEL IN THE GENERAL FORM OF A SURFACE OF REVOLUTION HAVING A FLANGED FUNNEL-LIKE OUTLET SECTION; AIR BLOWER MEANS SUPPORTED FROM SAID FRAME AND MOUNTED IN SAID TUNNEL FOR DISCHARGING AN AIRSTREAM THERETHROUGH AND OUT OF SAID OUTLET SECTION; AND A DIFFUSOR MEMBER CONNECTABLE TO SAID TUNNEL OUTLET SECTION, SAID DIFFUSER MEMBER COMPRISING: A FLANGE ENGAGEABLE WITH THE FLANGE OF SAID OUTLET SECTION IN ANY ONE OF A RANGE OF ANGULAR POSITIONS WITH RESPECT THERETO ABOUT THE AXIS OF REVOLUTION OF SAID TUNNEL; MEANS ENGAGEABLE WITH SAID FLANGES FOR SECURING THE DIFFUSOR MEMBER IN A SELECTED ANGULAR POSITION; MEANS DEFINING ARCUATE SLOT-LIKE LATERAL OUTLET MEANS FOR SAID DIFFUSOR MEMBER FOR DISCHARGING SAID AIRSTREAM; AND SPRAY NOZZLES SUPPORTED FROM SAID DIFFUSOR MEMBER INCLUDING MEANS CONNECTING THE NOZZLES WITH SAID TANK TO FEED LIQUID TO SAID NOZZLES, SAID NOZZLES BEING DIRECTED TO DISCHARGE LIQUID INTO THE AIRSTREAM ISSUING FROM SAID DIFFUSOR OUTLET MEANS, SAID TUNNEL DEFINING MEANS COMPRISING AN UPPER PARTCIRCUMFERENTIAL WALL SECTION AND A LOWER PART-CIRCUMFERENTIAL WALL SECTION WHICH TOGETHER PARTICIPATE IN DEFINING A SUBSTANTIALLY CONTINUOUS CIRCUMFERENTIAL TUNNEL WALL, SAID BLOWER MEANS COMPRISING A FAN ROTATABLY SUPPORTED BETWEEN SAID WALL SECTIONS COAXIALLY WITH SAID CIRCUMFERENTIAL WALL, SAID LOWER WALL SECTION BEING FORMED WITH AIR INTAKE APERTURE MEANS THEREIN ADJACENT IN INTAKE SIDE OF SAID FAN, AND SAID UPPER WALL SECTION BEING COEXTENSIVE WITH PART OF THE UNDER WALL OF SAID LIQUID TANK.