A paint gun for atomizing (in particular by way of compressed-air-assisted atomization) and applying a coating material such as a paint has a material-guiding part, a non-material-guiding part, and a transmitting and/or receiving device for wireless signal transmission. In order to increase the functional reliability and provide optimal operability in the environment in which the coating material is applied, the transmitting and/or receiving device for wireless signal transmission is arranged at a distance from the material-guiding part and is associated with the non-material-guiding part. Alternatively or additionally, an increased functional reliability is achieved by designing the transmitting and/or receiving device for wireless signal transmission in accordance with two different radio standards. Furthermore, a material application system comprising such a paint gun as well as a method for operating same are described.

Systems and methods are provided in which residual materials are removed from an interior surface of a drum or similar vessel at the end of a duty cycle. This is followed by application of a non-siliceous aqueous solution to the cleaned surface, which provides a durable low-friction coating to the interior wall of the rotating drum mixer throughout the following duty cycle or use.

In a spraying process for coating a substrate with a substance atomised in a stream of gas, a spray head is used to generate a stream of gas that acts upon the substrate. The substance is present in a syringe-like application container equipped with an application tip. The application tip of the application container containing the substance is introduced into the stream of gas outside the spray head at a distance therefrom and transversely with respect to the main direction of flow of the stream of gas, and the substance is introduced from the application container into the stream of gas at that location.

A fluid nozzle device includes: at least one fluid nozzle which includes a nozzle body having a first inner surface, a second inner surface that is opposite to and spaced apart from the first inner surface, an inner bottom surface that interconnects the first and second inner surfaces and that cooperates with the first and second inner surfaces to define a receiving space thereamong; a gas-intake tube disposed on top of the nozzle body; a liquid-intake tube formed with a liquid inlet and having at least one liquid outlet that is distal from the gas-intake tube; and a plurality of ejecting channels spaced apart from each other and disposed in the nozzle body.

The invention relates to a spray gun apparatus (10) for spraying a fine film coating of liquid, such as paint, lacquer or bond, onto a surface. The spray gun comprises a main body (12) having a fluid throughbore (22), a gas throughbore (16), and a main trigger lever (80) for allowing a user to spray fluid from the gun. A fluid flow adjustment mechanism (52, 58, 74) facilitates adjustment of the quantity of fluid sprayed from the gun for a given displacement of the main trigger lever (80). An engagement surface (86) is provided on the trigger lever and adapted to engage with a corresponding engagement surface (90) of the fluid flow adjustment mechanism. Pivoting movement of the main trigger lever (80) results in translational movement of at least a portion of the fluid flow adjustment mechanism to thereby selectively spray fluid from the gun upon displacement of the main trigger lever.

There is provided a delivery unit for a cleaning system and a method of operation. The delivery unit has a liquid nozzle for delivering a liquid jet and directing the liquid jet towards a surface of a sensor system, an air nozzle for delivering an air jet and directing the air jet towards the surface of the sensor system, and a deflection orifice for delivering an other air jet for deflecting the liquid jet away from the air nozzle. The liquid nozzle is located proximate to the air nozzle. The air nozzle and the deflection orifice are in fluid communication with a single air manifold.

A spray device includes side-by-side spray tips that are spaced from one another at a distal end of the spray device. A first spray tip has a first fluid pathway defining a first flow area. The first fluid pathway has a first swirl chamber having an outer perimeter and flutes having inner ends that direct a first fluid into the outer perimeter of the first swirl chamber for rotating the first fluid in a circular pattern. A second spray tip has a second fluid pathway that defines a second flow area that is larger than the first flow area. The second fluid pathway has a second swirl chamber having an outer perimeter and flutes having inner ends that direct a second fluid into the outer perimeter of the second swirl chamber for rotating the second fluid in a circular pattern.

A liquid slurry spraying system for spraying highly viscous slurries, including those with solids content, while maintaining the slurry in agitated condition for optimum discharge. The spraying system includes a nozzle body with a liquid flow passage having a liquid slurry inlet adjacent an upstream end and a spray tip at a downstream end, a valve needle supported in the liquid flow passage for reciprocating movement between spray tip closing and opening positions, and a bladed rotor having a plurality of vanes rotatably supported on the valve needle for rotation as an incident to the direction of liquid slurry from said liquid inlet when the valve needle is in an open position for agitating the liquid slurry for direction to the spray tip.

A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (21) of the mixer housing (2). The inlet channel (41) is arranged asymmetrically with respect to the longitudinal axis (A).

An injecting body of the injector is provided with two outlets. One outlet is connected to an auxiliary nozzle in a threaded manner, and the other outlet is connected to an injecting element body in a threaded manner. The water taking signal nozzle circularly takes signal water and air conveniently and reliably, so that a low-pressure vortex region is discontinuously formed at one side of the injecting element body; formation and disappearance of a pressure difference between a left cavity and a right cavity can be implemented in an automatic control manner, and wall attachment of water and rotation of the injector are implemented. The auxiliary nozzle is primarily used for supplementing near water distribution of the double-nozzle injector capable of spraying at a medium and low pressure, so as to improve spraying evenness.