Abstract: A dual roller stencil applicator for applying a stencil pattern to a surface. The applicator has a frame with a handle supporting first and second rollers, the first roller having a porous outer layer for receiving and holding paint and a second roller having a raised stencil design thereon, with the first and second rollers in alignment and movable with respect to each other. The second roller is mounted for selective displacement from the first roller such that when the first roller is to be loaded with paint, the second roller is not in contact with the first roller, and when the apparatus is in an operating condition, the first and second rollers are urged together, permitting the first roller to supply paint to the raised stencil of the second roller. The stencil roller is completely removable from the applicator for cleaning. A drive wheel assembly is coupled to the second roller to rotate the second roller when the second roller is urged against a surface to which a stencil pattern is to be applied.

Abstract: An improved internal feed paint brush having a flexible liquid-impermeable paint distribution manifold interior of a plurality of filaments formed of a flat, woven nylon cloth conduit coated with polyurethane film and sealed to a rigid plastic end cap and having a plurality of channels in the distribution manifold formed by a plurality of spaced-apart, longitudinally extending bonds in the coated nylon material. The manifold is sonically welded to the end cap and the filament and manifold assembly is sealed with epoxy.

Abstract: An airless spray paint gun having an improved swirl valve which is less susceptible to erosion and reduces the amount of sputtering in the paint spray. The spray paint gun includes a gun assembly including a handle, a motor, and a switch for controlling the motor. A pump subassembly mounted to the gun assembly includes a pumping chamber having a discharge end with a beveled seat, a piston mounted within a pump housing and driven by the motor for pumping paint from the container through the discharge end of the pumping chamber, and a swirl valve mounted within the discharge end of the pumping housing. The swirl valve includes a valve body having first and second opposite sides, three paint swirl apertures extending through the valve body between the first and second opposite sides, a beveled seat-engaging surface on the second side of the valve body formed of an elastomeric material co-molded with the valve body. The elastomeric material is softer than the material of the valve body.

Abstract: A suction apparatus seal for portable paint spray guns having a suction apparatus received via mating conical surfaces in a salient inlet port, the seal formed of resilient, low-density polyethylene and having a radially inwardly directed lip sized to seal around the suction apparatus and a cylindrical mediate section sized to seal around the salient inlet port and a radially outwardly flared flange to aid in installing the seal on the inlet port of the spray gun. The seal also provides positive engagement of the suction apparatus when it is initially loosely engaged with the paint inlet of the gun.

Abstract: A user-replaceable pumping chamber for a consumer piston pump has a reciprocating piston seal secured to the end of a piston by a threaded fastener. The chamber further has a smooth-bored cylindrical sleeve surrounding the seal to form a cylindrical wall for the chamber. The seal is retained to the piston by a threaded shoulder screw and washer acting against an O-ring in an end face of the seal. The housing has an aperture providing access to the cylindrical sleeve to permit levering a worn sleeve out of the housing.

Abstract: A roller arm guide allows conversion of a paint spray gun for use as a paint roller, with optional attachment of an in-line cartridge filter. A track on the base of the spray gun retains a channel member on the elongate body of the roller arm guide. A filter support ring at the proximal end of the roller arm guide provides support for a conventional in-line filter and a crescent shaped roller arm engaging lip on the exterior of the filter support ring provides support for a paint roller arm.

Abstract: An accessory for inflating and deflating inflatable articles comprises a conduit 13, an intake 17, an outtake 19 and an injector 35. In use, conduit 13 functions as a venturi tube for rapid inflation and deflation of inflatable articles, preferably, articles having a large, low pressure air volume. For inflation, outtake 19 is connected to the inflatable article. For deflation, intake 17 is connected to the inflated article. For inflation and deflation, a source of pressurized air, preferably, an electric air compressor is connected to injector 35.

Abstract: This invention is concerned with a machine and method for automatically removing a curing film or membrane from a concrete floor surface and etching that surface in preparation for applying a surface coating and doing this in less time than has heretofore been required for such floor preparation.

Abstract: This invention is concerned with a machine for automatically removing a curing film or membrane from a concrete floor surface and etching that surface in preparation for applying a surface coating and doing this in less time than has heretofore been required for such floor preparation.

Abstract: In a combination sweeping, polishing and scrubbing floor maintenance machine, the present invention includes a debris hopper removably positioned in a frame secured to a portion of the machine. The debris hopper has a rearward opening facing a pair of substantially side-by-side disc tools, e.g. brushes. The brushes preferably rotate in the same rotational direction with one brush positioned slightly ahead of the other brush. Immediately in front of the forward edge of the leading brush is a conduit means secured to the hopper. Adjacent the conduit means and extending along the hopper opening is a flexible member. Both the flexible member and the conduit means serve as debris receiving means for directing swept debris upwardly into the debris hopper. Blade members may be provided forward of the debris receiving means and beneath the hopper to guide debris into a central area of the machine's path of travel.