Patent ID: 6189177
Filing Date: 2001-02-20
Classification: A47L

Abstract:
A system for cleaning a planar surface comprising:a central rotating fluid jet for supplying a high pressure fluid against the surface to be cleaned;a vacuum chamber associated with a vacuum source, said central rotating fluid jet and said vacuum chamber both being mounted on a central body portion; anda base portion provided with drive means for driving said body portion along a surface to be cleaned, said central rotating fluid jet being mounted for relative rotation on said base portion, but for movement with said base portion, said base portion having a cylindrical neck portion, and a seal having a cylindrical portion received on said cylindrical neck portion, said seal having a hinge portion positioned radially outwardly of said cylindrical portion, and an outer portion including a plurality of brush bristles for contacting a wall surface, said outer portion being positioned radially outwardly of said hinge portion.