Patent ID: 6375720
Filing Date: 2002-04-23
Classification: A47L,Y10S

Abstract:
A removable vacuum cleaner filter assembly, comprising:a flange portion having an upper surface, a lower surface, and a flange aperture therethrough; a porous filter element portion attached to the lower surface of the flange portion and extending along a filter axis, the filter element portion having an opening generally aligned with the flange aperture, and the filter element portion having a generally constant cross-sectional area when intersected by a plane generally perpendicular to the filter axis; and a manifold comprising a lower surface, first and second inlet ports through said lower surface, a common outlet port through said lower surface and generally aligned with the flange aperture, a first flow passage extending from said first inlet port to said common outlet port while turning through an angle of approximately 180Â°, and a second flow passage extending from said second inlet port to said common outlet port while turning through an angle of approximately 180Â°, wherein at least a portion of said lower surface of said manifold rests against at least a portion of said upper surface of said flange portion.