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:
Jun. 11, 2002
Filed:
Nov. 18, 1999
Frank C. Corrado, Rochester, NY (US);
James W. Fischer, Rochester, NY (US);
Gary R. Larsen, Webster, NY (US);
Ronald W. Sweet, Conesus, NY (US);
Other;
Abstract
A system for cleaning first and second surfaces of a moving web substrate. First and second turret subsystems are disposed sequentially along the web path. Each turret is rotatable about an axis transverse to the direction of web conveyance but there is no axial cross-shaft. Each turret includes at least two contact cleaning rollers spaced apart in the turret on opposite sides of the turret axis. The web path proceeds through each pair of rollers such that in each turret the first roller of the pair is adjacent a first surface of the web and the second roller of the pair is adjacent a second surface of the web. When the turrets are rotated to a null position, none of the rollers is in contact with the web. When the turrets are rotated to a web cleaning position, the web is engaged with the rollers on both sides of the web and follows a serpentine path through the turrets. In a preferred embodiment, each turret is provided with four rollers such that any pair of rollers in either turret may be cleaned at any time without breaking continuity of cleaning of the web surfaces by two rollers on each web surface.