Abstract: An air atomizing spray nozzle for spraying a viscous liquid carrier at relatively low flow rates for agricultural and industrial applications. The nozzle comprises a hollow body with a liquid passage for receiving pressurized liquid from an external source, an air duct for receiving low pressure air from another external source, and a nozzle tip assembly. The latter includes a liquid spray tip connected to the liquid passage and having an elliptical discharge orifice formed by the intersection of a radiused end orifice bore and a cross slot communicating with the liquid passage; an air cap connected to the air duct and having a pair of diametrically opposed air nozzles straddling the liquid spray tip, each air nozzle having an outwardly diverging flat face with an oblong air orifice communicating with the air duct. Each air orifice is defined by the intersection of a radiused orifice bore and a cross slot in the flat face of the nozzle.

Abstract: An improved spray nozzle assembly particularly adopted for use in continuous casting apparatus and the like utilizing an atomized mixture of pressurized water and air as the cooling medium. The nozzle assembly is adapted to be interposed between the rolls of the casting apparatus and to deliver a cooling spray in the form of a fine mist distributed uniformly over a predetermined area of the ingot or slab. The assembly includes a specially formed mixing nozzle and discharging nozzle tip having turbulence generating shoulders, a transverse mixing chamber, and specially formed discharge orifice controlling the shape of the spray pattern and the uniformity of coolant distribution within that pattern.

Abstract: This invention relates to a nozzle having a restriction in the form of an insert comprised of a pre-metering orifice in the nozzle that causes the emerging stream to flare out and impinge on the nozzle side walls and create turbulence to flood the nozzle and achieve a predetermined spray pattern. The premetering insert is formed to provide a non-uniform orifice length and is installed immediately ahead of the nozzle to reduce the velocity of the stream without disrupting the spraying performance of the nozzle and one or both parts are made from a plastic material such as nylon.