Infectious diseases may be acquired in public areas such as transportation terminals, shopping centers, schools, hospitals, restaurants and hotels. Large surface areas may be disinfected using a spray system to distribute a suitable fluid such as a disinfectant. Many existing spray systems are large and unwieldy causing operator fatigue. Some spray systems have large, heavy external tanks that provide fluid to the spray system using an external fluid hose. Disclosed is an improved portable spraying system that may be carried by a system operator. The improved system has a tank, a quick connect, a pump, a valve, a nozzle, and a fan all powered by a battery. The tank, the pump, and the battery are arranged to minimize operator fatigue. With the valve set to the priming position, fluid recirculates to prime the pump. Once the pump is primed, the valve is turned to the spray position to begin spraying. The quick connect allows an external tank such as a backpack tank to be connected to the sprayer.

A plurality of air-releasing openings with inclined sidewalls are arranged at the periphery of the water tank of an aroma diffuser product, each air-release opening disposed in a position that is set at a certain angle along the inclined direction of the sidewalls. The certain angle being formed by the center longitudinal axis of the exit side of the opening relative to the radius of the water tank. A plurality of mist-releasing openings is arranged non-horizontally at the upper part of the water tank or the periphery of the water tank cover. An aroma diffuser or ultrasonic atomizer configured with the plurality of air-releasing openings and/or the plurality of mist-releasing openings.

Disclosed is a nozzle assembly for a sprayer, when a power of a sprayer is turned OFF, capable of not only minimizing an amount of liquid chemical remaining in a flow path at an inner side of a nozzle but also preventing backflow of the liquid chemical. The a nozzle assembly for a sprayer includes a nozzle assembly body molded in a ‘+’ shape; a nozzle assembled and installed in each of the plurality of nozzle assembly holes; a plurality of insert pieces fitting from an outside to an inside of four directions of a slide hole formed in a ‘+’ shape and forming a flow path for guiding a fluid flowing; and an end cap fixed and coupled to an outside in four directions of the slide hole in a state.

The present invention relates to a liquid chemical sprayer includes: a nozzle cap which is rotatably assembled and installed in place at a rotation guide of a body; a nozzle head; a nozzle is formed at a front end of a nozzle pipe formed extending a predetermined length toward the front, and a guide plate is formed protruding to be assembled to a guide rail formed at a neck capable of operating forward and backward; a valve body formed in a cylindrical shape; a valve housing formed in a cylindrical structure fixedly installed at a rear of the nozzle head and forming a valve seat at an inner portion; and a motor housing faced and assembled with the rear of the valve housing so that the rear thereof is maintained in a fixed state, in which an air blowing module is installed.

Disclosed is a nozzle assembly for a sprayer, when a power of a sprayer is turned OFF, capable of not only minimizing an amount of liquid chemical remaining in a flow path at an inner side of a nozzle but also preventing backflow of the liquid chemical. The a nozzle assembly for a sprayer includes a nozzle assembly body molded in a ‘+’ shape; a nozzle assembled and installed in each of the plurality of nozzle assembly holes; a plurality of insert pieces fitting from an outside to an inside of four directions of a slide hole formed in a ‘+’ shape and forming a flow path for guiding a fluid flowing; and an end cap fixed and coupled to an outside in four directions of the slide hole in a state.

A hair care device according to the present disclosure includes a tank that stores a liquid, a pump that outputs the liquid stored in the tank, and a controller that controls an output of the pump. The hair care device according to the present disclosure further includes a detector that detects swing of the hair care device. The controller adjusts the output of the pump based on a detection value of the detector. Thus, the hair care device that suitably sprays a cosmetic component is provided.

An aerosol-based printing apparatus is provided capable of producing an aerosol stream at a constant rate and constant material deposition to a substrate to provide high-definition, high-resolution traces. The aerosol-based printing apparatus provides production, transport, and delivery of an aerosol stream at a constant rate for a period of time of at least 8 hours and other instances more than 24 continuous hours of constant operation. By inhibiting bulging and necking of the deposited trace, superior line width tolerances are achieved, and such tolerances are maintained for extended periods of time, thereby allowing for both the deposition of complex traces as well as consistent manufacture of duplicate articles that maintain the tolerances across a production ran. The accumulation of fluids in the aerosol and gas transport conduits are eliminated, thereby eliminating the need for purge or cleaning cycles and allowing for uninterrupted operation for a minimum of 24 hours.

The present invention discloses a microbubble-producing water outlet assembly, which includes a housing, a water inflow component, a water through-flow disc and at least three layers of bubble mesh plates. The microbubble-producing water outlet assembly provided by the present invention has a simple structure, is easy to manufacture and easy to implement, has a low cost, and solves a problem that the water flow strength is too high but the content of microbubbles is too low in existing water outlet assemblies in the prior art.

A fine particle sprayer including a nozzle for dispersing a liquid disinfectant into a spray plume of droplets and a means for directing pressurized air below the spray plume to increase droplet transfer efficiency, and above and around the spray plume to prevent errant droplets from drifting toward an operator. A sprayer system includes a sprayer, a housing, and a blower that may be removably attached to the sprayer for generating an air stream below the droplets to improve droplet transfer efficiency.

A spray device (A) according to the present disclosure includes: a two-fluid nozzle (11) which sprays a mist (91); a spray-device-side gas flow path (12) for supplying a gas to the two-fluid nozzle (11); a gas supply source (17) which supplies the gas to the spray-device-side gas flow path (12); a spray-device-side liquid flow path (13) for supplying a liquid to the two-fluid nozzle (11); a liquid supply source (18) which supplies the liquid to the spray-device-side liquid flow path (13); a pulse-driven liquid flow control valve (14) having a valve opening degree that is adjusted according to a pulse signal to control the flow rate of the liquid in the spray-device-side liquid flow path (13); and a controller (30) which adjusts, in multiple levels, the concentration of the mist (91) sprayed from the two-fluid nozzle 11 by adjusting the valve opening degree of the liquid flow control valve 14.