The present disclosure provides a nozzle assembly including a unitary nozzle body having multiple flow channels therein. Spray nozzles are mounted to outlet ports of the flow channels, such as via a snap-fit connection. The spray nozzles can be keyed with the outlet ports to align them in a predetermined position and lock the spray nozzles and the nozzle body together radially. Vehicles and systems incorporating a nozzle assembly are also provided.

A fluid sprayer includes a housing defining a reservoir attachment portion, a pump supported within the housing, a nozzle assembly supported by the housing and located in fluid communication with the pump, and an electrostatic charging circuit configured to impart an electrostatic charge in a fluid pumped out of the nozzle assembly by the pump. The fluid sprayer also includes a first reservoir including a first latch configured to releasably secure the first reservoir to the reservoir attachment portion to fluidly couple the first reservoir to the pump. The fluid sprayer further includes a second reservoir including a tank, an adapter, and a hose fluidly connecting the tank to the adapter, the adapter including a second latch configured to releasably secure the adapter to the reservoir attachment portion to fluidly couple the tank to the pump.

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 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.

A spraying system for an agricultural vehicle including a spraying boom and a circuit including a tank, a pump, a pilot-operated pressure regulator and a plurality of spraying sections each including at least one spraying device including at least one spraying nozzle designed to spray treatment liquid on plants to be treated in the field, a first distributor and at least one direct acting pressure limiter, the circuit also including a second distributor and a spraying system a control unit designed to implement a step to prime the spraying system.

A substrate processing apparatus includes: a processing chamber in which a substrate is processed with a processing liquid; a nozzle having a discharge port from which the processing liquid is discharged, the discharge port being formed in a distal end portion of the nozzle; a nozzle bath including an accommodation chamber formed therein, wherein the distal end portion of the nozzle is accommodated in the accommodation chamber at a standby time at which the processing liquid is not supplied to the substrate; a circulation line configured to return the processing liquid, which is discharged from the nozzle to the nozzle bath, to the nozzle; and a first restraint part configured to restrain a gas from flowing between an outside of the nozzle bath and the processing liquid present inside the nozzle bath when the processing liquid discharged from the nozzle to the nozzle bath is circulated to the nozzle.

A mixing apparatus includes: a first introduction port that is provided on a further upstream side than a mix acceleration part in a mixer tube and allows introduction of a liquid agent; a second introduction port that is provided on the further upstream side than the mix acceleration part in the mixer tube and allows introduction of a substance for removing the liquid agent; and a piston that is provided on the upstream side of the mixer tube and that opens one of the first introduction port and the second introduction port and closes another of the first introduction port and the second introduction port by stroking in the axis direction of the mixer tube.

A liquid dispensing valve for dispensing of liquid solution, the liquid dispensing valve operable to create a vacuum buildup of pressure, such that the liquid moves on a recirculation path from the intake port to the output port. The recirculation of the liquid prevents sediment within the liquid from settling, and further prevents backpressure, and allows for continuous recirculation of the solution through a suction return line, providing generally consistent flow of liquid. The liquid dispensing valve's ability to minimize sediment buildup allows for a quick cleaning of the lines while also minimizing potential contamination of the general area.

The fluid dispensing system (100) comprises at least one fluid source (110), at least one pump (130-1, 130-2, 130-3, . . . , 130-N), at least one telescopic fluid dispenser (140′-1′, 140′-2′, 140′-3′, . . . , 140′-M′); a control unit (160) to operate the pump (130-1, 130-2, 130-3, . . . , 130-N) for supplying fluid (120) according to a received command of washing at least one target object (150-1, 150-2, 150-3, . . . , 150-O), a manifold (180), and at least one control valve assembly (V-1, V-2, . . . , V′-P′) comprising a fluid inlet for receiving fluid from the at least one fluid source (110), a first fluid outlet for discharging fluid into the at least one telescopic fluid dispenser (140′-1, 140′-2, 140′-3, . . . , 140′-M′), and a second fluid outlet for allowing fluid to flow back away from the telescopic fluid dispensers (140′-1, 140′-2′, 140′-3′, . . . , 140′-M′) when retracting from the extended position to the rest position.

An automatic return shower head and a use method thereof are provided. The automatic return shower head comprises a handle, a valve body, a water distribution disc, a switching return assembly and a shower head body configured to be connected with the handle and having a water outlet passage communicating with a water supply passage of the handle. The valve body is provided with water distribution hole(s), fixed to a joint between the shower head body and the handle, and located between the water supply passage and the water outlet passage. The water distribution disc is provided inside the joint and rotates relative to the valve body. The switching return assembly comprises a switching assembly linked with the water distribution disc, a knob provided on a wall surface of the joint and linked with the switching assembly, and a return portion linked with the knob.

A water delivery system includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve; a thermochromic thermal indicator, fluidly coupled between the mixing valve and the dispensing device, that provides a visible indication of the water flow having achieved a predetermined temperature; and a diverter valve, fluidly coupled between the mixing valve and the dispensing device, and operable to direct the water flow selectively either to the dispensing device or back to the water source. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.