The present invention relates to a portable spraying device (1) for discharging a fluid, in particular an agricultural formulation, having a container (2) for holding the fluid, a pump (15), which is in fluid connection with the container (2), for pumping the fluid out of the container (2), a spray gun (21), which comprises a spray opening (27) and an electrically controllable application valve (20) for opening and closing a passage to the spray opening (27), an application line (17), which establishes a fluid connection between the pump (15) and the spray gun (21). The spraying device (1) according to the invention is distinguished by a pressure sensor (19), which is arranged in the application line (17), for detecting the fluid pressure in the application line (17), and an electric control device (28), which is coupled to the application valve (20) and the pressure sensor (19) in terms of data transmission, by means of which device an electric control signal for opening the application valve (20) for a certain predetermined time interval and for closing the application valve (20) on expiry of the time interval can be produced in accordance with the fluid pressure detected by means of the pressure sensor (19), with the result that a defined volume of the fluid is discharged via the spray opening (27).

A handheld pet spray wand may be configured for use in washing or bathing a pet, for example, a dog. The handheld pet spray wand may be configured for attachment to a hose that is further attached to a water supply source. The handheld pet spray wand may be operable to have a number of spray modes to assist in the cleaning of the pet. The handheld pet spray wand may further be configured to provide selective nozzle array sizes designed for both small and large pets. The form factor of the spray wand may further be ergonomically formed to provide a spray pattern conforming to the body of the pet.

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 high temperature protective valve and the use thereof in a shower head, wherein the high temperature protective valve includes a body, the body having a complete one-way waterway, and also a thermo-sensitive assembly and a pivot valve assembly. The thermo-sensitive assembly is fixed inside the body and has a memory alloy body which can be immersed in the waterway and extend and retract along the direction of the flow. The pivot valve assembly is also fixed inside the body downstream waterway of the thermo-sensitive assembly. The pivot valve assembly has a pivot valve plug which is controllable by the thermo-sensitive assembly so as to cut off the waterway. The high temperature protective valve of such a structure has a fast response and can achieve good protective effects at a high temperature.

A nozzle through which a liquid coolant is discharged is provided with an outer tube, a projecting member and an inner tube disposed inside the outer tube, and an elastic body disposed between the inner tube and a discharge port of the outer tube. If foreign matter accumulates on a nozzle opening of the inner tube, the elastic body is compressed by the inner tube under the pressure of the coolant, so that the inner tube moves toward the discharge port. Consequently, the projecting member penetrates the nozzle opening, thereby automatically removing the foreign matter accumulated on the nozzle opening.

A modular spray gun manifold having a plurality of spray gun modules arranged in a lateral array each separated by an adjacent support assembly. Each spray gun module has a central liquid passage communicating with a spray nozzle and a transversely oriented liquid inlet port communicating through an outer side of the spray gun module for connection with an independently controllable liquid supply. The spray gun modules further include a recirculation port communicating between the central passageway and a recirculation conduit in an adjacent support assembly. A control valve of each module is operable when in open spraying position for blocking communication of liquid from the central passageway to the circulation port and when in a valve closing position blocking the liquid flow to the spray nozzle while redirecting liquid from the liquid inlet to the recirculation port for recirculation through the manifold array.

A high pressure capable fluid sprayer includes a piston pump, a main pump housing, and a spray tip. The piston pump has a piston disposed to pump a fluid. The spray tip has an outlet aperture configured to atomize and spray the fluid. The main pump housing is formed of compliant plastic and rated for at least 1600 psi, defines a main pump chamber surrounding the piston, and is disposed to receive fluid from a fluid source.

A drip emitter for subsurface irrigation includes a valve chamber defining a hollow interior, an entry port and at least one exit port. A flexible diaphragm is mounted in the hollow interior of the valve chamber for movement in response to pressurized water being supplied to the hollow interior through the entry port. The drip emitter further includes a tortuous path water flow channel that limits the flow of water from the hollow interior of the valve chamber to the at least one exit port. A closure member is moved by the flexible diaphragm to open the at least one exit port when pressurized water enters the hollow interior to allow water to be discharged through the at least one exit port. A spring moves the closure member to close the at least one exit port when the supply of pressurized water is shut OFF.

A trigger sprayer for connection to a container or liquid product which is to be dispensed is disclosed. The trigger sprayer includes a trigger body with a first engagement member and a nozzle with a second engagement member. The first engagement member is constructed and arranged to receive the second engagement member. The second engagement member is moveable relative to the first engagement member between a first position and a second position. Movement of the second engagement member relative to the first engagement member between the first and second positions encounters a region of increased resistance.

A trigger sprayer for connection to a container or liquid product which is to be dispensed is disclosed. The trigger sprayer includes a trigger body with a first engagement member and a nozzle with a second engagement member. The first engagement member is constructed and arranged to receive the second engagement member. The second engagement member is moveable relative to the first engagement member between a first position and a second position. Movement of the second engagement member relative to the first engagement member between the first and second positions encounters a region of increased resistance.