A fire protection nozzle includes a body having two frame arms having proximal ends connected to an outlet of the body, and distal ends, the two frame arms defining a frame arm plane, and a junction formed by the distal ends of the frame arms, the junction including a central bore and a cylindrical outer wall. A circular deflector is mounted to the body, and includes a planar disk having a mounting hole in a center of the planar disk to receive the cylindrical outer wall of the junction, and a plurality of slots on a periphery of the circular planar disk. The plurality of slots includes four radial first slots, four radial second slots, eight radial third slots, and eight fourth slots. The nozzle has a K-factor of at least 28 gpm/(psi).sup.1/2.

A material applicator includes an array plate and at least one ultrasonic transducer mechanically coupled to the array plate. The array plate includes a plurality of micro-applicators and each of the micro-applicators has a material inlet, a reservoir, and a micro-applicator plate in mechanical communication with the at least one ultrasonic transducer. Each of the plurality of micro-applicator plates has a plurality of apertures and the at least one ultrasonic transducer is configured to vibrate each of the plurality of micro-applicator plates such that at least one material is ejected through the plurality of apertures as atomized droplets. At least one ultraviolet light source is positioned adjacent to the plurality of micro-applicators and the at least one UV light source is configured to irradiate the atomized droplets ejected through the plurality of apertures.

An apparatus for applying a coating to a substrate includes a base, an applicator, and a quick-connect connector. The base includes a fluid conduit. The applicator includes at least one actuator and an array of nozzle plates. Each nozzle plate defines at least one aperture. The at least one actuator is configured to oscillate the nozzle plates to eject fluid from the apertures. The quick-connect connector couples the fluid conduit to the applicator for fluid communication therebetween.

The present invention is directed to improvements related to the generation of aerosols and outlines an apparatus and methods which supports deagglomeration and counteracts reagglomeration of aerosol particles. The apparatus is provided with an arrangement of inlet conduits for pressurized gas that promote transportation with a rotational flow towards an exit conduit. In order to further support production of high quality aerosols, the apparatus can be provided with an impactor aligned with the exit conduit with at least one impacting surface that minimizes formation of impact residues.

A showerhead assembly for dispersing liquid, comprising a back part; a front part coupled to the back part to form a plurality of dispersion chambers; an inlet boss disposed between the front part and back part for connecting a liquid supply line; a liquid supply, rail disposed between the front part and the back part and connected to the inlet boss for leading liquid to the dispersion chambers; and a plurality of support members slidably coupled to the front part such that the support members can slide between the front part and the back part.

An adjustable spray nozzle with adjustable arc of coverage as well as spray elevation angle and flow rate. A very simple adjustable arc of coverage spray nozzle configuration is also disclosed which may be easily assembled for a particular precipitation rate and/or range of coverage at a selected nominal pressure. Also disclosed is a simple fixed arc of coverage spray nozzle with selectable ranges for a particular precipitation rate.

A method of controlling application of material onto a substrate includes ejecting atomized droplets from an array of micro-applicators while the array of micro-applicators cyclically moves about at least one axis. The atomized droplets from each of the plurality of micro-applicators overlap with atomized droplets from adjacent micro-applicators and a diffuse overlap of deposited atomized droplets from adjacent micro-applicators is provided on a surface of the substrate. The array of micro-applicators cyclically rotates back and forth around the at least one axis and/or moves back and forth parallel to the at least one axis. For example, the at least one axis can be a central axis of the array of micro-applicators, a length axis of the array of micro-applicators, a width axis of the array of micro-applicators, and the like. Also, the array of micro-applicators can be part of an ultrasonic material applicator used to paint vehicles.

A method of controlling application of material onto a substrate is provided. The method includes ejecting an ultraviolet (UV) curable material through a plurality of micro-applicators in the form of atomized droplets. At least one UV light source is positioned adjacent to the plurality of micro-applicators and the atomized droplets are irradiated with UV light by the at least one UV light source and curing of the atomized droplets is initiated. The atomized droplets are deposited onto a surface of the substrate and a UV cured coating on the surface is formed thereon. The UV curable material may include a photolatent base catalyst such that the atomized droplets deposited onto the surface continue to cure after being irradiated with the at least one UV light source. The at least one UV light source can include a UV light ring, a UV light emitting diode, and the like.

An essential oil reflux-type atomizer comprising the following structures: a chassis, housing, atomization chamber, gas pump, gas tube, gas nozzle, oil nozzle, and filter atomization mechanism. Oil and gas flow together at the gas and oil nozzles to disperse and atomize the oil in the gas flow. A heater is used to raise the temperature of the oil where it is atomized, either by heating the oil itself or by heating the gas flowing into the oil. Thus, the atomizer can have improved performance, especially with essential oils having high viscosity and molecular weight.

A hand dryer includes a nozzle for blowing out an airflow toward a drying space, which is open at the front and the left and right sides so that hands can be freely inserted and withdrawn, and a wind direction changing part that changes a direction of the airflow blown out vertically downward from the nozzle. The wind direction changing part is so positioned as to be shifted rearward in a front-back direction from a position on an extension of a blow direction of the nozzle. While the airflow is being blown out vertically downward from the nozzle, the wind direction changing part and the nozzle do not directly face each other.