Patent ID: 6772466
Filing Date: 2004-08-10
Classification: A46B,Y10S

Abstract:
A brush for cleaning a corrugated surface formed by parallel ridges and valleys, said brush comprising:a brush body; a plurality of bristles carried by and extending downwardly from said brush body, said bristles having undulating lower ends that form parallel ridges and valleys complementary to the parallel ridges and valleys of the corrugated surface; said bristles including valley bristles having lower ends positioned to engage the ridges on the corrugated surface, and ridge bristles having lower ends positioned to extend into the valleys of the corrugated surface; said valley bristles including bristles of a first hardness; said ridge bristles including bristles of a second hardness that is harder than the first hardness; and wherein in use the bristles of the brush are movable along the parallel ridges and valleys of the corrugated surface with the parallel ridges and valleys formed by the lower ends of the bristles in contact with the parallel ridges and valleys of the corrugated surface.