Abstract:
A modular spray gun manifold having a plurality of spray gun modules arranged in a lateral array each separated by an adjacent support assembly. Each spray gun module has a central liquid passage communicating with a spray nozzle and a transversely oriented liquid inlet port communicating through an outer side of the spray gun module for connection with an independently controllable liquid supply. The spray gun modules further include a recirculation port communicating between the central passageway and a recirculation conduit in an adjacent support assembly. A control valve of each module is operable when in open spraying position for blocking communication of liquid from the central passageway to the circulation port and when in a valve closing position blocking the liquid flow to the spray nozzle while redirecting liquid from the liquid inlet to the recirculation port for recirculation through the manifold array.
Abstract:
An external mix air assisted spray nozzle assembly having a nozzle body with pressurized liquid and air passages, an air cap having a central opening in coaxial relation to a liquid discharge orifice of the nozzle body for discharging an annular air stream in surrounding relation to liquid discharging from the discharge orifice, and the air cap has a pair of opposed thin walled cylindrical members projecting in opposed relation to each other for directing pressurized air to atomize and shape the discharging liquid spray pattern, while minimizing undesirable build up of solids on the terminal ends of the projecting cylindrical members.
Abstract:
A shower header type spraying device having an elongated spray header with a plurality of laterally-spaced nozzles and an elongated cleaning brush assembly supported in said spray header for cleaning inlet apertures of said spray nozzles. The cleaning brush assembly includes an axially extending rod and a plurality of brush elements each mounted on the rod by means of a self-aligning member that has an arcuate shape corresponding to the outer circumference of the rod for orienting a row of brush bristles of the brush element in predetermined relation to the elongated axis of the rod. The illustrated brush rod assembly includes a plurality of brush rod segments each having a self-aligning coupling at an axial end thereof such that joining of adjacent rod segments automatically orients the brush elements in predetermined angular offset relation to each other.
Abstract:
An internal mix spray nozzle assembly adapted for operation with lesser pressurized air requirements. The spray nozzle assembly includes a liquid passage for directing a liquid flow stream against an impingement pin, and an air guide is provided for forming an annular pressurized air passage about the liquid flow stream for striking and atomizing a laterally spreading dispersion of liquid from the impingement surface. For enhancing liquid atomization, the air guide defines a relatively narrow width air flow opening for substantially accelerating and increasing the pressure of the atomizing air stream, and the impingement pin is formed with a relatively large primary impinging surface and a parallel downstream secondary impingement surface that facilitates further liquid particle breakdown and prevents the accumulation of liquids about the bottom of the impingement pin.
Abstract:
A spray device (10) for discharging a liquid as a mist is provided. The spray device (10) includes a main body (12) including a reservoir (26) for storing the liquid to be discharged and an atomizing assembly (30) in fluid communication with the reservoir (26) and including an ultrasonic atomizing head (36) configured to shear the liquid into droplets using sound waves. A spray nozzle (14) includes a nozzle body (78) with an inlet (80) in communication with the atomizing assembly (30) and a discharge orifice (82). The nozzle body (78) defines a first passage (84) that communicates with the spray nozzle inlet (80) and the discharge orifice (82). The nozzle body (78) includes a charging electrode (90) arranged in a second passage (94) that connects to the first passage (84).
Abstract:
An electrostatic spray dryer for drying liquid into powder including an elongated body defining a drying chamber, a spray nozzle assembly at one end of the drying chamber and a filter element housing and powder collection chamber at an opposite end. A non-structural non-metallic liner is disposed within the elongated body in spaced relation to an inner wall surface for defining an internal drying zone. The liner is releasably supported within the body for enabling selective removal and replacement following a particular usage. The illustrated elongated body has a modular construction comprising a plurality of modules, with at least one being selectively removable and replacement for altering the length of the drying chamber for a particular spray application. The liner also is replaceable with a liner of a length corresponding to the altered length of the drying chamber or with a different diameter for a particular usage.
Abstract:
A liquid spray device having a base for connection to liquid and pressurized air supplies, an elongated support mounted on the base which carries a spray nozzle for selected positioning relative to a target area to sprayed. Liquid and air supply tubes concentrically communicate with the spray nozzle through the elongated support, and the elongated support comprises a plurality of interfitting ball and socket joint members which retain the elongated support in proper position for selective direction of the discharging liquid without being subjected to the pressurizes of the liquid and air communicated through the support.
Abstract:
A spray nozzle assembly is provided. The spray nozzle assembly includes a nozzle body having a liquid passage that terminates in a nozzle body orifice. The spray nozzle assembly includes an impingement element having an impingement surface spaced from the nozzle body orifice. One or more air outlet orifices are disposed upstream of the impingement surface and oriented to discharge a substantially tubular curtain of air around the nozzle body orifice. An air cap defines a chamber extending around and downstream of the impingement surface. The air cap has a plurality of discharge orifices. At least one of the discharge orifices in the air cap has an associated nipple that is integrally connected to the air cap and extends the discharge orifice outwardly away from an outer face of the air cap.
Abstract:
An internal mix spray nozzle assembly adapted for operation with lesser pressurized air requirements. The spray nozzle assembly includes a liquid passage for directing a liquid flow stream against an impingement pin, and an air guide is provided for forming an annular pressurized air passage about the liquid flow stream for striking and atomizing a laterally spreading dispersion of liquid from the impingement surface. For enhancing liquid atomization, the air guide defines a relatively narrow width air flow opening for substantially accelerating and increasing the pressure of the atomizing air stream, and the impingement pin is formed with a relatively large primary impinging surface and a parallel downstream secondary impingement surface that facilitates further liquid particle breakdown and prevents the accumulation of liquids about the bottom of the impingement pin.