Abstract: A housing for a pressure washer for internal components of the washer such as a pump, an electric motor for the pump and a valve assembly. The housing has first and second identical interconnected housing halves. The inner surface of the housing halves include pairs of ribs interacting to engage the internal components.

Abstract: A pneumatic system (10) is shown in its most preferred use in a spray gun (12) to remotely control a pressure washer. The system (10) generally includes an integrally formed, homogenous squeeze box (40) including a location ear (52), a nose tube (46), a bellows (44), and a discharge tube (48). Bellows (44) is generally rectangular in cross section and includes a flat top (62) and bottom (63) and accordion sides (64) having generally longitudinal fold lines (72, 74, 76, 78, 80) which are generally parallel to the mold part line (93) and the tubes (46, 48) but include a 2.degree. draft for ease in mold removal. A valve and spring tube (42) is loosely received on the nose tube (46) for sealing a vent hole (60) provided therein when the bellows (44) is compressed by a trigger (30) of gun (12) and for biasing the trigger (30) to an uncompressed bellows condition.

Abstract: A pressure washer according to the preferred teachings of the present invention is disclosed including a pump driven by a gear reduced, high speed, series universal motor supported in a housing by a switch housing. The motor is stopped and started by a pressure actuation switch to remove the necessity of an unloader valve. A valve assembly is provided which includes provisions for allowing or for preventing weepage through the pump and for relieving excessive pressure. The housing is formed of identical, non-mirror image housing halves which are interconnected end for end. Pairs of ribs upstand from the inner surface of the housing halves, with the first of the pair of ribs of the first housing half interacting with the second of the pair of ribs of the second housing half to engage the internal components while the second of the pair of the first housing half and the first of the pair of the second housing half not interfering with the internal components.

Abstract: A pneumatic system (10) is shown in its most preferred use in a spray gun (12) to remotely control a pressure washer. The system (10) generally includes an integrally formed, homogeneous squeeze box (40) including a location ear (52), a nose tube (46), a bellows (44) and a discharge tube (48). Bellows (44) is generally rectangular in cross section and includes a flat top (62) and bottom (63) and accordion sides (64) having generally longitudinal fold lines (72, 74, 76, 78, 80) which are generally parallel to the mold part line (93) and the tubes (46, 48) but include a 2.degree. draft for ease in mold removal. A valve and spring tube (42) is loosely received on the nose tube (46) for sealing a vent hole (60) provided therein when the bellows (44) is compressed by a trigger (30) of gun (12) and for biasing the trigger (30) to an uncompressed bellows condition.

Abstract: A head for the application of a fluid such as paint to a surface is shown in the most preferred form as a tee fitting which is pivotally mounted to a pad assembly. First and second hoses extend from nipples formed on the manifold base of the pad assembly to tee stems of a tee fitting for providing the dual functions of providing fluid communication therebetween and for placing a torsional spring action between the pad assembly and the applicator pole for placing uniform pressure on the pad to flatly contact the surface. The nipples are in fluid communication with a trough formed in the manifold base corresponding to a removed portion in the fluid impervious backing of the pad. The foam layer of the pad is free of direct fluid communication paths to the flocking such that fluid must flow into and through the foam for even distribution to the flocking in a wicking distribution by capillary action.

Abstract: A fountain applicator handle is disclosed for providing a continuous supply of a liquid coating to an applicator head for application onto a surface. The fountain applicator handle includes an elongated hollow reservoir with a sliding displacement piston disposed therein. A valve body is attached thereto and adapted for attachment to a coating supply, with the valve body allowing the communication of the coating into the reservoir while preventing the outflow of the coating to the applicator, and controllably communicating the coating from the reservoir to the applicator. Specifically, a fill tube is insertable through a check valve and sealable in a tapered segment in the fill channel of the valve body. In the most preferred form, the check valve is biased in a closed position independent of back pressure of the liquid coating.