Abstract: A spray-shower pipe is equipped with flat fan nozzles having a dome-shaped indentation directed to the pipe inside and located inside a nozzle base formed with a recess that conforms with and engages the outer surface of the pipe wall and an annular extension of length corresponding to the pipe wall thickness at the circumference of the opening in which the extension is snugly seated. The front surface of the extension facing the inside of the pipe has a curvature which corresponds to the curvature of the pipe wall inside surface. The dome-shaped indentation is formed with an aperture that forms an angle with the longitudinal axis of the pipe that is slightly less than 90.degree., typically 83.degree..

Abstract: Apparatus in which water and liquid detergent meet in a venturi chamber to be commingled there, the detergent being drawn into the venturi by the condition of unbalanced (lowered) pressure there resulting from the velocity of the water flowing through the venturi throat. Compressed air is introduced into a nozzle in communication with the venturi, and the commingled water, detergent, and air are then discharged for use in the form of a foam. The water inlet includes a removable insert separate from the venturi, the upstream end of the insert being exposed for direct accessibility for a mounting tool, and an annular chamber located upstream from the discharge end of the venturi outlet initially receives the compressed air which is then caused to be discharged in an annular condition about the commingled detergent and water flow.

Abstract: A spray head having a body provided with separate inlets for two fluids, the inlets having a common longitudinal axis and being in end abutting relation. One inlet leads to a chamber for receiving one of the fluids, the chamber being provided with means through which the fluid is discharged, and the other inlet leads to a post, manufactured simultaneously with the manufacture of the chamber and integral with the body. The post is located in the chamber and is hollow so that the other fluid is discharged therefrom by the aspirating action of the first, and the two fluids are commingled, the second fluid being atomized by the first. Various nozzle structures are disclosed from which the commingled discharges flow, the ultimate discharge being in the form of a cone, or a flat fan by the employment of opposed supplemental fluid jets, or non-circular in formation as shaped by appropriate terminus aperturing, or flattened and diverted by impact with an impingement surface in the path of the discharge.

Abstract: A spray shower (10) is equipped with flat fan nozzles (17), having a dome shaped indentation (21) directed to the pipe inside, and located inside a nozzle base (12), attached to the outer surface of the pipe wall, at which the adjustment at the nozzle discharge orifice (22) in relation to the longitudinal axis (24) of the spray-shower (10) results from a corresponding fixation of the nozzles (17) inside the nozzle base (12). The flat fan nozzle has at the outer circumference several sides (20) and on the inner circumference of the nozzle base (12) are tip stretched corresponding sides (19) used as stops for the sides (20) of the flat fan nozzles (17). An arrangement of the spray-shower in such a manner obtains the advantage of a quick and problemless assembly of the flat fan nozzles in the required exact position, without the need for special skills of the assembler. Time consuming controls of the exact position of the nozzle discharge orifice after assembly and eventual correction is no longer necessary.