A spray gun includes a valve cartridge configured to be axially installed and removed as a single piece. The valve cartridge includes the wear components of the spray gun. A trigger of the spray gun is configured to actuate a slider of the valve cartridge to control spraying by the spray gun. The trigger includes arms that are mounted to the spray gun by a pivot mechanism. The pivot mechanism can be disengaged from the arms to allow the trigger to slide between a spray position, where the trigger prevents forward axial movement of the valve cartridge, and a repair position, where the valve cartridge can move axially forward. The trigger also includes upper and lower portions that are movable relative to each other, such that the length of the trigger can be adjusted.

A method for quickly replacing an air outlet pipe of an air blow gun includes providing a gun body, a C-shaped clamping ring, a rotation knob and a nozzle head, and rotating the rotation knob to rotate the clamping ring, moving the oblique guide faces of each of the clamping jaws of the clamping ring to touch the resting portions of each of the arcuate slots of the mounting head of the gun body, pressing outward each of the clamping jaws of the clamping ring, releasing the clamping jaws of the clamping ring from the locking groove of the nozzle head, detaching the nozzle head from the clamping ring, and detaching the nozzle head from the mounting head of the gun body. Thus, the nozzle head is detached from the gun body quickly.

A method for quickly replacing an air outlet pipe of an air blow gun includes providing a gun body, a C-shaped clamping ring, a rotation knob and a nozzle head, and rotating the rotation knob to rotate the clamping ring, moving the oblique guide faces of each of the clamping jaws of the clamping ring to touch the resting portions of each of the arcuate slots of the mounting head of the gun body, pressing outward each of the clamping jaws of the clamping ring, releasing the clamping jaws of the clamping ring from the locking groove of the nozzle head, detaching the nozzle head from the clamping ring, and detaching the nozzle head from the mounting head of the gun body. Thus, the nozzle head is detached from the gun body quickly.

An electrically powered, compact, ready to use sprayer that includes a main housing. When the sprayer is used in conjunction with an electric motor, self-feeding undulating tentacles, a spinning element, a spherical boot, spherical boot outlet, feed hose, and an extended wand outlet it is able to pump low and high viscosity fluid, create a liquid spray, and dispense fluid in the forward direction with very few moving parts and minimum energy.

There is disclosed a method of printing onto the surface of a substrate, which method comprises i) coating a donor surface with a monolayer of particles, ii) treating the substrate surface to render at least selected regions tacky, and iii) contacting the substrate surface with the donor surface to cause particles to transfer from the donor surface only to the tacky regions of the substrate surface. After printing on a substrate, the donor surface returns to the coating station where the continuity of the monolayer is restored by recovering with fresh particles the regions of the donor surface exposed by the transfer of particles to the substrate.

There is disclosed a method of printing onto the surface of a substrate, which method comprises i) coating a donor surface with a monolayer of particles, ii) treating the substrate surface to render at least selected regions tacky, and iii) contacting the substrate surface with the donor surface to cause particles to transfer from the donor surface only to the tacky regions of the substrate surface. After printing on a substrate, the donor surface returns to the coating station where the continuity of the monolayer is restored by recovering with fresh particles the regions of the donor surface exposed by the transfer of particles to the substrate.

A rotor nozzle structure has a chamber deployed with a rotor connecting to the water outlet and an adjusting element, wherein the rotor nozzle is capable of generating a directing stream and a wide-angle swirl stream, and the adjusting element is switchable by a rotational means for driving the rotor in a rotation or static status in the chamber.

A battery-operated dispenser includes a shell with a moveable slider for extending a barrel of the dispenser to allow targeted application of a fluid or product from a container to which the dispenser is attached.

A battery-operated dispenser includes a shell with a moveable slider for extending a barrel of the dispenser to allow targeted application of a fluid or product from a container to which the dispenser is attached.

A method of assembling a nozzle assembly is disclosed. The method includes: providing a nozzle member having a central passage defined by at least an inner side surface and an inner distal surface; inserting a fluid atomizer into the central passage of the nozzle member; and, with a distal surface of the fluid atomizer arranged adjacent the inner distal surface of the nozzle member, flexing legs of the fluid atomizer in a radially-outward direction for engaging each leg of the legs with the inner side surface of the nozzle member. A fluid atomizer is also disclosed. A nozzle assembly is also disclosed. A method of utilizing a nozzle assembly is also disclosed.