Portable paint sprayer

A portable pump spraying device comprising a container for the liquid to be sprayed, a sprayer housing connected to said container, said housing containing a spray chamber having a substantially vertical spray discharge slot, pump means for pumping liquid to said spray chamber from said container, a vertically oriented spinner disc in said spray chamber, drive means for rotating said spinner disc within said spray chamber, delivery means for delivering the liquid pumped to said spray chamber by said pump means onto a face of said spinner disc, the rotation of said spinner disc being operative by centrifugal force to impel a portion of the liquid delivered thereto through said spray discharge slot as a spray, and interceptor means within said spray chamber to define a pattern of spray dispersion and assist in returning excess liquid to said chamber for recirculation by said pump means, said interceptor means including said spray discharge slot for limiting the horizontal and upper spray dispension, a selectively positionable shutter between said spray discharge slot and said spinner disc to define a plurality of selectable lower limits to the pattern of spray dispersion including a position for preventing any spray from exiting through said spray discharge slot, said shutter being of generally arcuate shape having a convex outer surface facing said spray discharge slot and a concave inner surface facing said spinner disc, and means mounting said shutter for limited pivotal movement between such selectable positions, said means mounting said shutter for movement comprising a rotatable shaft extending through a side wall of said sprayer housing into said spray chamber, and a shutter arm connecting said shutter to said rotatable shaft for pivotal movement therewith.

A portable pump spraying device comprising a container for the liquid to be sprayed, a sprayer housing removably connected to said container, said housing containing a spray chamber having a spray discharge slot, a spinner disc in said spray chamber, pump means for pumping liquid to said spray chamber from said container, delivery means for delivering such pumped liquid onto a face of said spinner disc, and drive means for rotating said spinner disc, said pump means including a pump tube having a generally horizontal portion terminating in a discharge orifice adjacent said spinner disc for discharging the liquid being pumped onto said spinner disc and a generally vertical portion extending from said generally horizontal portion into said container, a conveyor screw rotatably disposed within the lower end of said generally vertical portion, and drive means for drivingly axially connecting said conveyor screw to said spinner disc through approximately a right-angle bend in said pump tube for rotation thereby, said removable connection between said sprayer housing and container comprising a raised collar surrounding an opening in the top of said container communicating with a bottom opening in said sprayer housing, said collar containing a generally L-shape notch on opposite sides of said container opening, and generally L-shape flanges depending downwardly from opposite sides of the bottom of said sprayer housing for snap-lock engagement within said notches.

A portable pump spraying device comprising a container for the liquid to be sprayed, a sprayer housing connected to said container, said housing containing a spray chamber having a substantially vertical spray discharge slot, pump means for pumping liquid to said spray chamber from said container, a vertically oriented spinner disc in said spray chamber, and drive means for rotating said spinner disc within said spray chamber, delivery means for delivering the liquid pumped to said spray chamber by said pump means onto a face of said spinner disc, the rotation of said spinner disc being operative by centrifugal force to impel a portion of the liquid delivered thereto through said spray discharge slot as a spray, said spray chamber having opposite side walls generally perpendicular to the axis of said spinner disc, one of said side walls having a drive shaft projecting therefrom on which said spinner disc is mounted for rotation, said one side wall having a deflector wall thereon, said deflector wall sloping away from said one side wall with increasing height and extending over the top edge of said spinner disc to intercept upwardly directed spray, and a side wall baffle projecting normally from the other side wall, said side wall baffle sloping away from said other side wall with increasing height and extending over the top edge of said spinner disc, the upper edge of said side wall baffle abutting against an upward portion of said deflector wall.