Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Charles Gary Atwell0
Date of Patent
April 14, 2009
Patent Application Number
11605081
Date Filed
November 28, 2006
Patent Primary Examiner
Patent abstract
A method of removing dust, dirt and the like from the surface of a paper substrate comprises the steps of transporting the paper substrate along a path of travel, and training the paper substrate over and in direct contact with at least a portion of the outer surface of a vacuum drum having openings therein. Suction is applied to the openings as the paper moves over the drum at a slightly different linear velocity from the surface velocity of the drum. Dust, dirt and the like are drawn away from one surface of the paper substrate through the openings of the drum as the paper substrate sweeps over the vacuum drum surface.
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