Abstract: A cleaning apparatus having a pan-shaped housing used to clean horizontal surfaces, such as a floor, conveyor belt and the like. Mounted on the top of the housing is a spinner assembly having a tubular shaft rotatably mounted therein carrying tubular arms located within the housing. Cleaning fluid flows through the spinner assembly into the arms and is discharged through nozzles having orifices mounted on the ends of the arms. A bolt threaded into a connector attaching one of the nozzles to an arm is adjustable to regulate liquid flow rate through the connector to adjust the speed of rotation of the arms. A flexible skirt attached to the bottom of the housing has a lower edge spaced a short distance above the surface to concentrate and prevent dissipation of the cleaning fluid. A three position valve controls the flow of water and disinfectant liquid through the cleaning apparatus.

Abstract: A cleaning apparatus having a pan-shaped housing used to clean surfaces. Mounted on the top of the housing is a spinner assembly having a body containing a longitudinal passage. A tubular shaft rotatably mounted in the passage carries tubular arms located within the housing. The fluid flows from the hollow shaft into the arms and is discharged through nozzles having orifices mounted on the ends of the arms. The shaft has a head located in a chamber at one end of the passage. The diameter of the head is larger than the diameter of the passage and is dynamically balanced by the flow of fluid under pressure through the passage and chamber into the hollow shaft. The rotating shaft is laterally stabilized with a cylindrical boss attached to a cap threaded on the body. Alternatively, the upper end of the shaft has a cylindrical projection rotatably mounted in a recess in the cap to eliminate lateral movement and vibration of the shaft.

Abstract: A fluid pressure cleaning apparatus for cleaning large or inaccessible surfaces, such as a floor or truck sidewall. A housing has a manifold assembly mounted in the interior thereof with a plurality of linearly aligned spray nozzles spaced apart to provide a continuous spray or curtain of cleaning fluid to the surface to be cleaned. Portions of the manifold assembly extend through the housing and are connected to a handle assembly. A first brush array lines the outer edges of the housing and confines the spray from the manifold assembly and assists in cleaning the surface. A second array of scrub brushes is provided within the periphery of the first array. In one form of the cleaning apparatus the manifold assembly has a fluid discharge port and a valve selectively operable to open and close the port. When the valve is closed high pressure fluid is discharged from the nozzles to wash and rinse the surface. Detergent and fluid is directed unto the surface when the valve is open.