Power Flo Products Corp.

Wagner Spray Tech Corporation

J. Wagner Gmbh

Gary C Polk

Steve A Larson

Ronald E Albrecht

Ewald Kille

Leo F Wildgen

Warren J Walsh

Gerald E Peterson

Richard W Gunderson

Daniel Theodore West

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.

Pressure washer

High pressure washer

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. The switch housing interacts with abutting ribs of the interconnected first and second housing halves to create an air baffle for dividing the housing into hot and cold compartments, with the electrical components of the washer located in the hot compartment and the water components of the washer located in the cold compartment. The switch housing includes a key slot which clamps the pressure line to a nipple on the switch and which holds the switch in the switch housing protected from the elements by the motor supported thereon.

There is disclosed herein a liquid spray gun which includes an improved heat dissipation system and an improved leakage flow recirculating system. The improved heat dissipation system results from an improved and stronger air flow through the gun housing and around the electromagnetic coils. The improved air flow is created by a venturi or aspiration effect at the spray tip created by the action of the piston pump in spraying liquid at high velocity reducing the air pressure adjacent the tip. The internal portion of the housing communicates with the low pressure area so air in the housing is drawn from the housing to the low pressure area. Vents are provided in the housing adjacent the electromagnetic coils for outside air to be drawn into said housing over said coils and to the low pressure area, thus improving air flow and heat dissipation.

Air aspirated cooling for spray guns

An apparatus for cleaning both the interior and exterior of a paint dispensing roller that has a water inlet attachable to a faucet with a one-way valve to prevent reverse water flow through the inlet, a first water outlet from which water is supplied through a conduit into the inside of the roller flushing it clean, and a ring holding the roller having a second water outlet communicating with the water inlet to supply water to clean the exterior of the paint roller. The ring snugly fits around the roller in order to hold it in place, and also functions to wipe the water from the roller.

Apparatus for cleaning exterior and interior of a paint dispensing roller

There is disclosed herein a liquid spray gun which may be used for spraying paint. The gun includes a piston pump for withdrawing liquid from a reservoir and providing a force for spraying the liquid. The gun also includes a nozzle for receiving liquid from the piston and spraying the liquid under pressure. The piston pump includes a collection port for accumulating leakage liquid or flow from within the pump. A fluid circuit collects leakage liquid from the collection port and delivers the leakage liquid to a position forward and adjacent the nozzle. The fluid circuit includes a conduit having an inlet end connected to the collection port and an outlet end positioned adjacent the nozzle. The high velocity spray creates a low pressure area adjacent the nozzle and a venturi effect in the fluid circuit means for cooperation in drawing the liquid from the collection port to the nozzle.

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Eden Prairie, MN, United States of America

Gary C Polk