Method and apparatus for cleaning surfaces

摘要

An apparatus and method for cleaning a surface. The apparatus includes a frame having wheels and a handle extending outwardly therefrom. A disc plate assembly is mounted on the frame for rotation about a first vertical axis and a nozzle assembly is mounted on the disc plate assembly for rotation about a second vertical axis. The disc plate assembly is rotated at a lower speed than the nozzle assembly. Separate pneumatically-operable motors drive the wheels, the disc plate assembly and nozzle assembly. A skirt extends downwardly from the frame and outwardly from nozzles on the nozzle assembly. The nozzles may be raised or lowered relative to the surface to be cleaned. Fluid is delivered from a fluid source to the nozzles and a vacuum port is provided on the frame to enable dirty fluid to be removed from a chamber bounded by the skirt.

主权项

1. A cleaning apparatus comprising:
a frame having a front end and a back end; a plurality of wheels mounted on the frame and adapted to move the cleaning apparatus over the surface to be cleaned; a disc plate assembly mounted on the frame, said disc plate assembly being mounted for rotation at a first speed about a first vertical axis; a nozzle assembly mounted on the disc plate assembly, said nozzle assembly being mounted for rotation at a second speed about a second vertical axis that is different from the first vertical axis; a plurality of motors, wherein one of the plurality of motors is a pneumatically-powered motor that causes the nozzle assembly to rotate; a primary water swivel adapted to be connected to a water source, wherein water from the water source is channeled through the primary water swivel to the nozzle assembly such that the nozzle assembly sprays the water onto the surface to be cleaned; an air swivel adapted to be connected to an air source, wherein air from the air source is channeled through the air swivel in order to power the one of the plurality of motors; and wherein the primary water swivel and air swivel are positioned on the first vertical axis.