Abstract: The device (10) utilizes a standard reversible airless tip (12). The air cap (18) is provided with four air passages (20) which aim radially inwardly at 45° from the centerline of the housing (30). The passages (20) have a 12° angle from being perpendicular to the longitudinal axis (24) of the assembly (10). The four jets (20) provided by these passages are guided by four channels (28) in the surface of the housing (30) (also having the 12° ramp angle) so as to guide the air flow to the center of the oval orifice (14a) in the carbide (14). Two pairs of opposing air jets (22) are also provided in the air cap (18) directed perpendicularly to the fan (26) of paint or other atomized material and these jets (22) are angled at about 20.5° relative to the plane that is perpendicular to the longitudinal axis (24) of the assembly (10). Each pair is directed at one another and is spaced laterally from the longitudinal axis (24) to help in removing tails from the pattern.

Abstract: A fluid dispensing device comprises a housing body, a reciprocating piston fluid pump, a primary drive element, a wobble assembly and a spray tip. The reciprocating piston fluid pump has a piston disposed within a pumping chamber inside the housing body. The primary drive element is coupled to the housing body to provide a rotary input. The wobble assembly connects the primary drive element to the reciprocating piston fluid pump to convert the rotary input into reciprocating input to the piston. The spray tip connects to an outlet of the pumping chamber.

Abstract: A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.

Abstract: A handheld airless fluid dispensing device comprises a pump, a drive element and an orifice element. The pump directly pressurizes a fluid. The drive element supplies power to the pump. The orifice element is connected to the pump and atomizes un-thinned architectural coating to a particle size of no greater than approximately 150 microns. The pump generates orifice pressures up to approximately 2.48 MPa and the orifice has an area of approximately 18.7 mm2. In one embodiment, the pump, drive element and orifice element are integrated into a handheld housing. In one embodiment, the pump comprises a reciprocating piston fluid pump comprising at least two pumping chambers configured to be actuated out of phase by at least one piston. In another embodiment, the reciprocating piston fluid pump comprises two pistons having different displacements that are linearly actuated by a wobble assembly driven by a gear reducer and an electric motor.

Abstract: A sprayer attachment for a hand-supported power tool comprises a motion converting mechanism, a pumping mechanism, a spray assembly and a housing. The motion converting mechanism has an input shaft. The pumping mechanism is driven by the motion converting mechanism. The spray assembly is fluidly coupled to the pumping mechanism. The housing assembly couples the motion converting mechanism, the pumping mechanism and the spray assembly. The sprayer attachment may further comprise an anti-rotation bracket extending from the housing. The sprayer attachment may further be coupled to a handheld power tool, such as a cordless drill or a reciprocating saw, with the anti-rotation bracket.

Abstract: A fluid dispensing device comprises a housing body, a reciprocating piston fluid pump, a primary drive element, a wobble assembly and a spray tip. The reciprocating piston fluid pump has a piston disposed within a pumping chamber inside the housing body. The primary drive element is coupled to the housing body to provide a rotary input. The wobble assembly connects the primary drive element to the reciprocating piston fluid pump to convert the rotary input into reciprocating input to the piston. The spray tip connects to an outlet of the pumping chamber.

Abstract: A handheld airless fluid dispensing device comprises a pump, a drive element and an orifice element. The pump directly pressurizes a fluid. The drive element supplies power to the pump. The orifice element is connected to the pump and atomizes un-thinned architectural coating to a particle size of no greater than approximately 150 microns. The pump generates orifice pressures up to approximately 2.48 MPa and the orifice has an area of approximately 18.7 mm2. In one embodiment, the pump, drive element and orifice element are integrated into a handheld housing. In one embodiment, the pump comprises a reciprocating piston fluid pump comprising at least two pumping chambers configured to be actuated out of phase by at least one piston. In another embodiment, the reciprocating piston fluid pump comprises two pistons having different displacements that are linearly actuated by a wobble assembly driven by a gear reducer and an electric motor.

Abstract: The device (10) utilizes a standard reversible airless tip (12). The air cap (18) is provided with four air passages (20) which aim radially inwardly at 45° from the centerline of the housing (30). The passages (20) have a 12° angle from being perpendicular to the longitudinal axis (24) of the assembly (10). The four jets (20) provided by these passages are guided by four channels (28) in the surface of the housing (30) (also having the 12° ramp angle) so as to guide the air flow to the center of the oval orifice (14a) in the carbide (14). Two pairs of opposing air jets (22) are also provided in the air cap (18) directed perpendicularly to the fan (26) of paint or other atomized material and these jets (22) are angled at about 20.5° relative to the plane that is perpendicular to the longitudinal axis (24) of the assembly (10). Each pair is directed at one another and is spaced laterally from the longitudinal axis (24) to help in removing tails from the pattern.