Abstract: An agricultural spraying assembly including a plurality of nozzles divided into groups with each group being supplied liquid through a solenoid valve with a motorized proportioning valve being adjustable to control the pressure supplied to the solenoid valves and, in turn, to the plurality of nozzles. The assembly includes a main control box which is normally situated on a spraying trailer and a remote control box which is normally situated on the pulling tractor and is supplied power from the tractor's battery. Each of the control boxes includes switches for each of the solenoid valves as well as a pressure adjusting switch for adjusting the pressure supplied to the nozzles. Each control box has a pressure gauge for indicating the operating pressure supplied to the nozzles.

Abstract: An apparatus for the spraying of a disperse system and which has a spray head with a hole-type nozzle. A plunger is present which is movably disposed inside the spray head and is shiftable in front of the aperture of the hole-type nozzle. A screen insert is present which is disposed in the spray head between the inlet for the disperse system and the hole-type nozzle. A scraper for the screen insert is present which is disposed between the inlet for the disperse system and the screen insert in such a manner that the scraper, upon movement of the plunger, sweeps the screen surface. An outlet, for the oversized particles scraped off of the screen surface, which is located between the inlet and the screen insert. A process for using the apparatus to spray a disperse system.

Abstract: A pressurized dispensing package includes a container in which the product to be dispensed and a gaseous propellant are stored. The product is dispensed through a discharge passage that extends from a control valve to a terminal orifice. A plural passage flow control member is disposed in the discharge passage. Each passage of the flow control member has a flow dimension in the range of one to one hundred microns and the length of the flow control member several times the passage flow dimension so that a significant pressure drop occurs across the flow control member as the product flows through the member. The total flow area of the flow control passages disposed in the discharge passage is greater than the area of the terminal orifice but less than fifty percent of the area of the discharge passage in which the flow control member is located.

Abstract: A flow control device that maintains a constant flow rate and is arranged to produce a regulated, aerated stream on the discharge side.

Abstract: A pressure control mechanism for an irrigation sprinkler having a rotatable riser with an orifice of predetermined shape with the riser sealed at the water inlet end thereof. In one embodiment, a stationary valve ring is snug-fit around the riser and circumferentially stationary with respect to the riser. The valve ring is spring biased against a shoulder on the riser at the inlet end and adapted to rise with the riser. The valve ring has an orifice which is congruent to the orifice of the riser whereby rotation of the riser with respect to the stationary valve ring regulates the flow of water through the valve orifice and the riser orifice to thereby regulate the flow of water through the sprinkler. In an alternative embodiment, a valve disc is secured to the inlet end of the riser and is circumferentially stationary with respect to the riser. The riser has a plug fixedly mounted at the inlet end and is keyed for limited rotation.