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:
Apr. 18, 2000
Filed:
Feb. 16, 1999
Keiki Tomikura, Kanagawa, JP;
Shinji Kawashima, Kanagawa, JP;
Kabushiki Kaisha Tokyo Kikai Seisakusho, Tokyo, JP;
Abstract
For moistening a water roller in contact with a planographic printing plate on a plate cylinder in an offset printing press, a sprayer produces a more or less flat spray of dampening water. Baffles are positioned in front of the sprayer to define an aperture through which the spray travels before hitting the water roller. The aperture has a width shorter than the longer dimension of the cross section of the spray as measured in a plane containing the aperture, and longer than the shorter dimension of the cross section of the spray in the same plane. Thus the rate at which the dampening water is supplied to the water roller is infinitely variable by changing the angular position of the spray relative to the aperture between a minimum dampening position where the spray has the opposite longitudinal end portions of its cross section interrupted to the utmost by the baffle means and a maximum dampening position where the spray is allowed wholly through the aperture. In practice a series of rotary sprayers may be arranged along the axis of the water roller.