A lance, in particular for jointly dispensing a pressurized fluid and an additive for penetrating walls, includes a lance body, a handle arrangement, multiple channels and actuator arrangements interacting therewith, a nozzle arrangement as well as at least one container for the additive. The actuator arrangements selectively control the fluid being conducted in the first channel, the additive being conducted in the second channel, and the ambient air being conducted in the third channel to a first nozzle body. The third channel forms a line connection between the ambient air and a mixing chamber of the first nozzle body. The second actuator arrangement with its second actuator directly acts on the third channel and indirectly controls the admixing of the additive via the second channel into the mixing chamber.

The invention provides novel systems and methods for liquid-mediated delivery of pollen to a female reproductive part of a recipient plant. The systems provided herein include a container configured to receive a liquid pollen suspension solution, and an applicator attached to the container configured to spray the liquid pollen suspension solution onto the recipient plant. The methods provided herein include spraying a liquid pollen suspension solution onto at least a first female reproductive part of a recipient plant using the system provided herein, thereby pollinating the recipient plant.

A siphon-type airbrush, comprising a front handle, a tail handle, a needle, a sprayer, a nozzle, an air inlet valve and a nozzle base; the front handle corresponds to the tail handle to form an airbrush body; the airbrush body is internally formed with an accommodating cavity; the accommodating cavity is internally provided with the needle; the front handle is internally provided with a siphon channel; the air inlet valve is disposed at the middle part of the airbrush body; the rear end of the nozzle base is in threaded connection with the front handle; the front end of the nozzle base is in threaded connection with the sprayer; the nozzle comprises a nozzle body; the nozzle body is pressed between the sprayer and the nozzle base; the front end of the nozzle body extends to form a nozzle tip.

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.

An air-assisted airless spray gun includes a valve cartridge configured to control a flow of air or spray fluid through the spray gun. The valve cartridge includes a housing configured to interface with the spray gun body and fully supporting the flow control components of the valve cartridge. The housing is secured within a bore of the spray gun body. The valve member is supported by the housing and actuatable relative to a seat. The valve is formed between the seal end of the valve member and the seat.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

A device for adjusting air pressure of a spray gun, and a method for adjusting air pressure of a spray gun includes installing an air adjustment valve in a first chamber located at the rear end of a rear path of the spray gun. The spray gun is connected with a compressor and the users operates the air adjustment valve to reduce the pressure in the first chamber, and the second chamber is supplied with a pre-set pressure so as to stably provide constant pressure to the front path to proceed paint spraying task.

A device for adjusting air pressure of a spray gun, and a method for adjusting air pressure of a spray gun includes installing an air adjustment valve in a first chamber located at the rear end of a rear path of the spray gun. The spray gun is connected with a compressor and the users operates the air adjustment valve to reduce the pressure in the first chamber, and the second chamber is supplied with a pre-set pressure so as to stably provide constant pressure to the front path to proceed paint spraying task.

A beauty shower comprises a shower body. The shower body comprises a water flow passage connected to a water inlet port and a water outlet nozzle and a cavity for storing a liquid beauty medium, the cavity is connected to the water flow passage through a liquid suction device, and the shower body further comprises a water flow driving device configured to drive the liquid suction device to pump the liquid beauty medium to the water flow passage.

A device for rotating a fluid inside a spray nozzle includes a body defining at least one helical slot and/or a helical hole for the passage of all or part of the fluid. This device can be secured to a spray nozzle or a needle valve closing the spray nozzle. An application device includes such a device for rotating a fluid inside a spray nozzle.