US 11,745,192 B2
Wide angle spray nozzle
Marc A. Arenson, Bartlett, IL (US); and Daniel J. Cederberg, South Elgin, IL (US)
Assigned to Spraying Systems Co., Wheaton, IL (US)
Filed by Spraying Systems Co., Wheaton, IL (US)
Filed on May 8, 2020, as Appl. No. 16/870,558.
Claims priority of provisional application 62/846,055, filed on May 10, 2019.
Prior Publication US 2020/0353485 A1, Nov. 12, 2020
Int. Cl. B05B 1/04 (2006.01); B05B 1/14 (2006.01); B05B 1/30 (2006.01); B05B 7/02 (2006.01); B05B 7/24 (2006.01)
CPC B05B 1/044 (2013.01) [B05B 1/14 (2013.01); B05B 1/30 (2013.01); B05B 7/02 (2013.01); B05B 7/2475 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A spray nozzle for producing and directing a fan shaped spray pattern comprising:
a nozzle body having a first portion and a second portion, the first portion having a cylindrical configuration, the second portion including a dome-shaped end wall, the first and second portions of the nozzle body defining an internal fluid passage having an inlet end and a downstream end defined by the dome-shaped end wall;
a flow control element arranged at the inlet end of the internal fluid passage, the flow control element including a pre-orifice through which fluid enters the internal fluid passage of the nozzle body, loses velocity, and builds up in the cylindrical portion of the nozzle body prior to discharge from the spray nozzle; and
first and second discharge orifices in the dome-shaped end wall with each of the first and second discharge orifices being arranged on a respective one of opposing first and second sides of an apex of the dome-shaped end wall; said first and second discharge orifices extending in opposite parallel directions from the apex of the dome shaped end wall; said first and second discharge orifices each having an elongated straight centerline slit-like configuration that is relatively narrower in width at a first end thereof than at a second end thereof with the first end being arranged relatively closer to the apex than the second end; a portion of the first and second discharge orifices near the first end of each discharge orifice being in overlapping relation when viewed from the first side towards the second side and said first and second discharge orifices each widen continuously as the respective discharge orifice extends from the first end to the second end; and said first and second discharge orifices being in overlapping relation less than their entire length but sufficient for producing a fan shaped fluid discharge spray pattern from the spray nozzle for direction onto a vegetation target area on the ground with even distribution with narrower overlapping portions of the discharge orifices producing a center portion of the spray pattern and relatively wider end portions of the discharge orifices producing opposing end portions of the spray pattern.