A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. By more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.

The present application provides an atomization device and an aroma diffuser. The atomization device includes: an oil supply structure including an oil storage bottle containing essential oil and an oil delivery pipe connected to the oil storage bottle, the oil storage pipe having a liquid outlet for the essential oil to flow out; a gas delivery structure for generating an atomized airflow; and an atomization structure including a first pipe section, a second pipe section and a third pipe section that are sequentially connected, an end of the first pipe section away from the second pipe section is connected to the gas delivery structure to receive the atomized airflow, the second pipe section is provided with an atomization port and in communication with the liquid outlet, and the third pipe section having a pipe diameter gradually increased in a direction away from the second pipe section.

Fluid applicator assemblies which can be attached to or fabricated integrally with a blowing apparatus such as a leaf blower as a source of flowing air to atomize and eject atomized liquids into spaces and/or onto surfaces may include a nozzle having a nozzle body. At least one air flow cavity may be provided in the nozzle body. An air inlet slot may extend through the nozzle body and may be disposed in fluid communication with the at least one air flow cavity. A fluid ejection portion may be carried by the nozzle body. The fluid ejection portion may include an ejection head support extending from the nozzle body. A fluid ejection head may be carried by the ejection head support. A tube opening may extend through the fluid ejection portion. A fluid ejection slot may be provided in the fluid ejection head and disposed in fluid communication with the tube opening. A liquid container may be disposed in fluid communication with the fluid ejection slot through the tube opening. Other embodiments of the fluid applicator assemblies are disclosed.

Fluid applicator assemblies which can be attached to or fabricated integrally with a blowing apparatus such as a leaf blower as a source of flowing air to atomize and eject atomized liquids into spaces and/or onto surfaces may include a nozzle having a nozzle body. At least one air flow cavity may be provided in the nozzle body. An air inlet slot may extend through the nozzle body and may be disposed in fluid communication with the at least one air flow cavity. A fluid ejection portion may be carried by the nozzle body. The fluid ejection portion may include an ejection head support extending from the nozzle body. A fluid ejection head may be carried by the ejection head support. A tube opening may extend through the fluid ejection portion. A fluid ejection slot may be provided in the fluid ejection head and disposed in fluid communication with the tube opening. A liquid container may be disposed in fluid communication with the fluid ejection slot through the tube opening. Other embodiments of the fluid applicator assemblies are disclosed.

This disclosure provides a sanitation device comprising spraying unit and a ramp unit operably linked to one another, as well as methods for preparing and using the same.

A flow control assembly includes a manifold coupled to a positive displacement pump. A fluid input unit is coupled to the fluid inlet and includes a diluent input to receive a diluent and a concentrate input to receive a selectively adjustable flow of a liquid concentrate. A mixing chamber combines the diluent and the liquid concentrate to form a mixed solution to be delivered to the pump. A bypass unit has a bypass conduit to receive a high pressure mixed fluid from the pump. A bypass valve is positionable within the manifold between a closed position and an open position. The bypass valve is closed when the high pressure mixed fluid is below a threshold pressure and open when the high pressure mixed fluid is above the threshold pressure. A portion of the high pressure mixed fluid is reintroduced to the mixing chamber via the bypass inlet.

A portable chemical dispenser for dispensing a chemical with a diluent includes a valve housing having a valve with an opened position and a closed position, an eductor housing coupled to the valve housing and including one or more eductors, and a nozzle coupled to the eductor housing and configured to direct the flow of a chemical solution to a receptacle, wherein the joint between the valve housing and the eductor housing permits relative rotations between the two housings. The portable chemical dispenser may also be devoid of metering elements that control the dosing of the chemical. A method of using the portable chemical dispenser is also disclosed.

A portable chemical dispenser for dispensing a chemical with a diluent includes a valve housing having a valve with an opened position and a closed position, an eductor housing coupled to the valve housing and including one or more eductors, and a nozzle coupled to the eductor housing and configured to direct the flow of a chemical solution to a receptacle, wherein the joint between the valve housing and the eductor housing permits relative rotations between the two housings. The portable chemical dispenser may also be devoid of metering elements that control the dosing of the chemical. A method of using the portable chemical dispenser is also disclosed.

A chemical dispenser for a chemical dispensing system is disclosed. The chemical dispenser includes an input selector valve having an opened position and a closed position and configured to be coupled to a diluent source, a diverter valve coupled to the input selector valve, and a plurality of eductors coupled to the diverter valve. The diverter valve includes a valve head having a diluent port, a valve seat having a plurality of eductor ports, wherein each eductor port is in communication with a respective one of the plurality of eductors, and a drive mechanism coupled to the valve head and configured to move the valve head relative to the valve seat. The valve head may include one or more pressure relief ports for equalizing the diluent pressure across the valve head. A chemical dispensing system including the chemical dispenser and a method of using the chemical dispenser are also disclosed.

An injection nozzle for a spray device for drawing in a fluid suction medium by a fluid propellant which is under excess pressure and for spraying an admixture of the suction medium and the propellant. The injection nozzle has a nozzle housing, an injection chamber arranged in the nozzle housing, a jet nozzle which opens in the injection chamber for producing a propellant jet which is introduced into the injection chamber, and a fluid suction opening for the fluid suction medium. The fluid suction opening opens in an annular channel which has a flow connection to the injection chamber.