The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1989
Filed:
Jun. 24, 1988
Francisco L Ziegelmuller, Penfield, NY (US);
Carl R Bothner, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A brush-vacuum cleaning apparatus, for removing toner particles from the image-bearing surface of a copier or printer, includes an airfoil located on the inside wall of a cylindrical brush housing. The airfoil relative to the rotation of the brush is positioned adjacent to, and on the upstream side of, a perpendicular slot that connects the interior of the brush housing to a vacuum source. The airfoil contacts and compresses the rotating fibers of the brush causing the fibers to rub against one another and thereby to loosen the toner particles entrained therein. In addition, the airfoil serves to aerodynamically deflect and accelerate the airstream moving with the fibers, deep into the fibers, thereby flushing the loose toner particles out of the brush and out of the housing.