Patent ID: 6941606

Claim:
A cleaning apparatus for cleaning from a moving web particles which are adhered to it by static electricity, of the type having a pair of oppositely facing suction hoods each having a pair of ionizing bars providing a source of high velocity ionized air, comprising: a plate having oppositely facing face sides, said plate having in a first face side thereof a central tapered elongate first opening, said first opening being of tapered width a greater width thereof at a first end thereof and a lesser width at a second end thereof; through openings in said plate extended from the opposite face side of said plate to, and in communication with, said central tapered elongate first opening; a pair of elongate longitudinal side openings is said first face side, said side openings in said plate further being in communication with said through openings; a series of spaced, first parallel ridges and second parallel ridges extended on a second face side thereof, portions of spaces between said first parallel ridges and portions of spaces between said second parallel ridges being said through openings; wherein said first and second parallel ridges are disposed bilaterally symmetrically about a transverse central axis of said plate.