A system and method for dermal spraying includes a portable, hand-held skin care device with disposable formulation capsules that spray a formulation unto the skin. The device is set to maximize absorption and provide professional and uniform quality of application. The device identifies the formulation capsules and its contents. Control circuitry regulates the formulation delivery. This assures the quantity, proportion, speed and timing of the application of the cosmetic formulation, including self-cleaning cycle operation and single button control logic. The capsule enables convenience and sterility from use of disposable capsules at home. Preferably the capsules contain a cosmetic or cosmeceutical formulation. The capsule has a sealed body having any of a variety of suitable shapes such as the general shape of a cylinder with two ends having hemispherical caps.

The present invention relates to a system for dispersing live biological control agents, comprising a reservoir of live biological control agents in liquid phase, a source of compressed air, a nozzle comprising a tip, the biological control agent line having a liquid phase outlet for a liquid phase jet to exit the tip in a main direction, and the compressed air line having at least one air outlet, the tip comprising a wall, the liquid phase outlet being defined by an opening in the wall of the tip, the one or more air outlets being arranged in the wall of the tip, the shape of the wall being configured to direct a flow of main air exiting the one or more air outlets in a converging manner towards the liquid phase jet.

A metering and mixing device contains a multichamber cartridge and a cartridge holder having a reception container for the multichamber cartridge and a compressed air connection and a connection for an application device. The reception container has an internal tube arranged coaxially to the walls of the cartridge holder and equipped with static mixing elements. The multichamber cartridge contains an upper portion having a directional valve, a middle portion configured as a tubular empty space surrounded by at least two chambers arranged tubularly in the direction of the longitudinal axis of the cartridge, and a lower portion having a piston for each chamber. The multichamber cartridge is arranged in the cartridge holder such that the inner wall of the inner tube of the multichamber cartridge bears, leak-tight, against the outer wall of the tube of the cartridge holder.

A spray gun includes a gun body having a front body portion and a spray cap assembly attached to the front body portion of the gun body. The spray cap assembly includes a nozzle assembly and a spray cap positioned over the nozzle assembly. The nozzle assembly includes a nozzle piece configured to attach to the front body portion of the gun body and an air flow guide surrounding the nozzle piece. The spray cap interfaces with the air flow guide. The air flow guide is configured to engage with the nozzle piece so that the air flow guide is prevented from moving past the nozzle piece.

A high-pressure low-volume spray system includes a hose disposed between a compressor and a spray gun. The hose acts as an accumulator when the spray gun is deactivated. A check valve is disposed in a fitting connecting the hose to the compressor. The check valve includes a spring that applies a nonlinear force to a downstream end of a valve member, such that the valve member tips open in response to the pressure differential, providing a variable flowpath opening through the check valve.

A system may include a spray device having a body with a first liquid passage configured to flow a first liquid and a second liquid passage configured to flow a second liquid. The spray device also may include a spray head configured to output a spray of the first liquid and the second liquid. In addition, the spray device may include a multi-component container coupled to the body, wherein the multi-component container comprises a first container portion having a first outlet configured to supply the first liquid to the first liquid passage and a second container portion having a second outlet configured to supply the second liquid to the second liquid passage, and the first and second outlets are positioned in close proximity to one another.

A device for generating a scented mist of an atomized liquid fragrance oil includes an atomizer complex, a reservoir assembly, a drainage tube, and a vacuum tube. The atomizer complex can atomize the liquid fragrance oil into a scented mist and deliver the scented mist to air outside of the atomizer complex, where the liquid fragrance oil the fragrance oil that is not atomized into the scented mist delivered to the air outside of the atomizer complex includes collected oil that is collected and drained to a reservoir assembly. A drainage tube extends from a bottom area of the atomizer complex into the liquid fragrance oil. The device can filter the liquid fragrance oil in the reservoir assembly and the collected oil from the atomizer complex that drained down the drainage tube. The vacuum tube can suction the filtered liquid fragrance oil and the collected oil into the atomizer complex for atomization.

A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container configured to contain liquid chemical, a chemical injection port fluidly coupled to the chemical container, an air inlet port configured to be fluidly coupled a source of air, and a nozzle configured for ejecting fluid through an orifice having an orifice diameter. The air inlet port is located between the chemical injection port and the nozzle orifice. In operation, with the orifice diameter being a first orifice diameter, a high pressure operating mode is implemented. In operation, with the orifice diameter being a second orifice diameter greater than the first orifice diameter, a chemical injection operating mode is implemented. In operation, with the orifice diameter being a third orifice diameter greater than the second orifice diameter, a foaming chemical injection mode is implemented.

A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.

A device for generating a scented mist of an atomized liquid fragrance oil includes an atomizer complex, a reservoir assembly, a drainage tube, and a vacuum tube. The atomizer complex can atomize the liquid fragrance oil into a scented mist and deliver the scented mist to air outside of the atomizer complex, where the liquid fragrance oil the fragrance oil that is not atomized into the scented mist delivered to the air outside of the atomizer complex includes collected oil that is collected and drained to a reservoir assembly. A drainage tube extends from a bottom area of the atomizer complex into the liquid fragrance oil. The device can filter the liquid fragrance oil in the reservoir assembly and the collected oil from the atomizer complex that drained down the drainage tube. The vacuum tube can suction the filtered liquid fragrance oil and the collected oil into the atomizer complex for atomization.