A gyrating nozzle spray gun includes a grip including an air inlet, a valve seat, a gas-delivery tube connected to the valve seat and terminating in a mating connection portion and a trigger operable for letting external compressed air go into the air inlet and the gas-delivery tube, an attachment tube connected to the mating connection portion of the gas-delivery tube, and a gyrating pattern generator including a gas-supply tube connected to the mating connection portion and suspended in an accommodation chamber, a bearing mounted on a connecting portion, a coupling socket mounted on an outer race and a gyrating nozzle fastened to the coupling socket and rotatably disposed in an orifice and defining a gas accumulation chamber and an oblique jet hole for ejection of the intake flow of compressed air that goes through the air inlet, the gas-delivery tube and the gas-supply tube into the gas accumulation chamber.

A gyrating nozzle head spray gun includes grip including air inlet, valve seat, gas-delivery tube connected to valve seat and terminating in mating connection screw rod and trigger operable for letting external compressed air go into air inlet and gas-delivery tube, attachment tube connected to mating connection screw rod of the gas-delivery tube, gyrating nozzle head assembly including gas-supply tube connected to mating connection screw rod and suspended in attachment tube, bearing, cap, linking module and gyrating nozzle head mounted on one end of the gas-supply tube, and water-delivery tube having one end extended bottom of coupling hole of gas-delivery tube and connected to water tank for sucking in water and opposite end thereof inserted through gyrating nozzle head for ejecting fluid for creating mist of fine droplets upon ejection of compressed air through the gas-supply tube and oblique jet hole and central axle hole of the gyrating nozzle head.

An improved structure of gyrating nozzle spray gun includes a grip including an air inlet and a trigger-controlled valve seat, a gas delivery tube connected to the valve seat, and a gyrating nozzle head including a connection nut threaded onto a front tubular mating connection screw rod of the gas delivery tube, an end cap threaded onto outer thread of the connection nut, a bearing positioned in the end cap, and a rotator mounted in the bearing and rotatable with an inner race of the bearing and defining therein a gas accumulation chamber for receiving compressed air from the valve seat via the gas delivery tube and the connection nut and an oblique jet hole eccentrically located in the front wall thereof for ejecting compressed air and causing the rotator to rotate during ejection of compressed air.

A coating device for coating an inside of a hollow body with an atomized fluid has at least one atomizing tube enclosing an atomizing channel. A pressurized propellant gas for atomizing an unatomized fluid can be introduced into the atomizing tube. The atomizing tube has at least one outlet opening and further has at least one hollow needle having a discharge opening for the unatomized fluid. The at least one hollow needle interacts with the atomizing channel and is arranged essentially coaxially thereto. The atomizing tube and the hollow needle form a Venturi arrangement.

A system and method for dermal spraying includes a portable, hand-held dermal application device with one or more disposable cartridges that spray a dermal formulation onto the skin, the disposable cartridge having a nozzle that can be activated by placing the cartridge into the spray device.

A system and method for dermal spraying includes a portable, hand-held dermal application device with one or more disposable cartridges that spray a dermal formulation onto the skin, the disposable cartridge having a nozzle that can be activated by placing the cartridge into the spray device.

In a cleaning method for removing adhesive residues from surfaces, in particular after separating an adhesive connection between adhesively joined partners, liquid carbon dioxide from a reservoir enters a jet apparatus and is guided there through a first dosing unit into an expansion chamber, wherein a cold-resistant liquid is then supplied to a mixture created in the expansion chamber from gaseous carbon dioxide and carbon dioxide particles and wherein the mixture, to which the cold-resistant liquid has been added, exits the jet apparatus via an outlet opening thereof. Furthermore, a jet apparatus removes adhesive residues from surfaces.