A backpack sprayer system includes a mounting bracket having a battery receiving fixture to receive a battery. A first tank is mounted to the mounting bracket and holds a diluent. A second tank is mounted to the mounting bracket and holds a liquid concentrate. A mixing manifold is mounted to the mounting bracket and has a first inlet fitting to receive a fixed amount of diluent and a second inlet to receive an adjustable amount of liquid concentrate. The fixed amount of diluent and adjustable amount of concentrate are combined to form a mixed solution and the mixing manifold includes a mixed solution outlet. A positive displacement pump is mounted to the mounting bracket and a suction port coupled to the mixed solution outlet and a pressure port fluidly coupled with a spray device. A control unit is mounted on the mounting bracket and receives power from the battery.

An electrostatic sprayer device includes a housing, an electrostatic module inside the housing, and a reservoir having a cavity adapted to contain a fluid. A nozzle fluidly connected to the reservoir emits electro-statically charged fluid. A syringe assembly communicates with a fluid pathway that leads to the nozzle such that the nozzle can expel fluid from the syringe assembly in combination with the fluid from the reservoir.

The personal cooling misting system disclosed provides for a wearable fluid reservoir to contain a volume of misting fluid, and an electrically operated pump proximate to the reservoir to pump the misting fluid from the reservoir to a misting head. The misting head facilitates atomizing the misting fluid. The system further provides for feed tubing to direct the misting fluid from the reservoir to the pump, and distributive tubing to direct the misting fluid from the pump to the misting head. The system also includes a pump control to control at least one of a pressure and a flow rate of the misting fluid through at least one of the feed tubing and distributive tubing, and the system includes a programmable circuit board to facilitate system control via the pump control, as well as directing to the pump control a misting distribution pattern for at least one of a consistent or intermittent misting pattern.

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure fluid stream and passes the fluid through an electrode of a nozzle assembly to charge droplets of the atomized fluid.

A blower spray device is provided having a housing which comprises an electrically driven blower and a spray nozzle, and having a liquid supply line opening into the spray nozzle. The housing has a funnel-shaped intake channel and a tubular blow-out channel, and an electrical valve is provided in the liquid supply line to activate and deactivate the liquid supply to the spray nozzle. An electronic controller having a regulating unit for the electric blower is further provided to adjust the air flow velocity.

The invention relates to a portable spray apparatus having a carrier frame, a blower and a storage vessel for a medium to be discharged. An upper unit with the storage vessel and a lower unit with the blower are retained on the carrier frame. The two units are located in the vertical direction of the carrier frame at a spacing (z) from each other. The spacing (z) is selected so that a movement gap is formed between the upper unit and the lower unit. To limit the resilient deflection of the upper unit, there is arranged on one of the units a damping stop which limits the movement gap and damps a resilient deflection of the upper unit by abutment of the damping stop on the other one of the units.

A pressurized liquid delivery assembly has at least one liquid delivery module. Each module may include a housing and an associated compartment. The compartment may be located within the housing and may be moveable with respect to the housing to permit access to the compartment by a user. The compartment may define a space adapted to receive a replaceable pressurised receptacle containing liquid to be dispensed by the assembly. A liquid dispenser may be operatively associated with the receptacle and adapted to dispense liquid. The dispenser may include a conduit that may be extendable from a dispensing nozzle to a liquid receiving connector. The liquid receiving connector may be adapted to releasably connect to the liquid receptacle in use.

A method for applying a medical treatment solution to a treatment site of a patient, that includes removably attaching a syringe assembly so that the syringe assembly is in communication with a pathway that leads to at least one nozzle; charging the medical treatment solution of the syringe assembly; and expelling the charged medical treatment solution to the treatment site.

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure air stream and passes the fluid through an electrode inside a nozzle assembly to charge, such as negatively charge, droplets of the atomized fluid. The system uses a unique nozzle design that is configured to optimally atomize the fluid into various sized droplets.

A backpack sprayer system includes a mounting bracket having a battery receiving fixture. A first tank is mounted to the mounting bracket and holds a diluent. A second tank is mounted to the mounting bracket and holds a liquid concentrate. The second tank is selectively, individually removable from the mounting bracket. A mixing manifold is mounted to the mounting bracket and has a first inlet fitting to receive a fixed amount of diluent and a second inlet to receive an adjustable amount of liquid concentrate. The diluent and concentrate are combined to form a mixed solution with the mixing manifold including a mixed solution outlet. A positive displacement pump is mounted to the mounting bracket and has a suction port coupled to the mixed solution outlet and a pressure port coupled with a spray device. A control unit is mounted on the mounting bracket and receives power from the battery.