Graco Minnesota Inc.

Philp K Snider

David John Thompson

Bradley H Hines

Diane Leigh Olson

William M Blenkush

Harold D Johnson

Eric J Finstad

Jimmy Wing Sum Tam

Jerry D Horning

Mariusz J Luczak

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.

Portable airless sprayer

Growing community of inventors

Red Wing, MN, United States of America

Philp K Snider