A spray wand includes: a hollow tubular main body; a nozzle mounted on the output end of the main body; and a valve assembly configured to mount the input end of the main body. The valve assembly includes: a housing having an input conduit for coupling the valve assembly with a fluid source; a sealing piston biased within the input conduit toward a sealing position thereof; and a valve core having a column rotatable within the interior space of the housing and a handle extending from the column, the valve core being rotatable between at least one open position corresponding to an open condition of the valve assembly and at least one closed position corresponding to a closed condition of the valve assembly. Upon rotation of the column to at least one open position thereof, the sealing piston biased within the input conduit is pressed from the sealing position.

A method and device for coating projecting surfaces of discrete projections of a product substrate that has functional units arranged at least partially in recesses. The method includes the steps of: bringing the projecting surfaces into contact with a coating material that is applied on a carrier substrate, and separating the carrier substrate from the projecting surfaces in such a way that the coating material remains partially on the product substrate. In addition, this invention relates to a corresponding device.

Handheld gas spray systems for mixing and dispensing multi-component compositions.

A system, including a spray cap configured to couple to a spray tool, wherein the spray cap includes a body and an air shaping passage through the body. The air shaping passage includes a flow control passage, an expansion chamber downstream from the flow control passage, and one or more air shaping outlets downstream from the expansion chamber.

A system, including a spray cap configured to couple to a spray tool, wherein the spray cap includes a body and an air shaping passage through the body. The air shaping passage includes a flow control passage, an expansion chamber downstream from the flow control passage, and one or more air shaping outlets downstream from the expansion chamber.

The present invention relates to an air spray device for a heterogeneous mixture coating solution without a separate stirring device. The air spray device 100 comprises: a main body 110 provided with a heterogeneous mixture coating solution inlet 111 and an inlet 112 for compressed air from the outside; an extension block 120 coupled in a downwardly extended shape at the lower end of the main body; a nozzle assembly 130 coupled at the lower end of the extension block; a communication path 140 vertically formed in the centers of the main body, the extension block and the nozzle assembly; a needle valve 150 provided inside the communication path; and a plunger 160 formed in a plate shape to be positioned in proximity to the bottom side of the communication path of the extension block to stir the heterogeneous mixture coating solution.

The present invention relates to an air spray device for a heterogeneous mixture coating solution without a separate stirring device. The air spray device 100 comprises: a main body 110 provided with a heterogeneous mixture coating solution inlet 111 and an inlet 112 for compressed air from the outside; an extension block 120 coupled in a downwardly extended shape at the lower end of the main body; a nozzle assembly 130 coupled at the lower end of the extension block; a communication path 140 vertically formed in the centers of the main body, the extension block and the nozzle assembly; a needle valve 150 provided inside the communication path; and a plunger 160 formed in a plate shape to be positioned in proximity to the bottom side of the communication path of the extension block to stir the heterogeneous mixture coating solution.

Embodiments of the present invention generally provide plasma etch process chamber improvements. An improved gas injection nozzle is provided for use at a central location of the lid of the chamber. The gas injection nozzle may be used in an existing plasma etch chamber and is configured to provide a series of conic gas flows across the surface of a substrate positioned within the chamber. In one embodiment, an improved exhaust kit for use in the plasma etch chamber is provided. The exhaust kit includes apparatus that may be used in an existing plasma etch chamber and is configured to provide annular flow of exhaust gases from the processing region of the chamber.

A plural component mixing system includes an automatic balance feature to balance the pressure of two or more components as they are mixed. The pressures or flow rates of the two components are monitored. If there is a difference in pressure or flow rate greater than a specified amount, a bleed valve is opened for a short period of time to balance the flows. A computer with a touch screen is used to set the pressure and flow rate differences that trigger the bleed, and to set the time period for the bleed.

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.