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:
Feb. 02, 1993
Filed:
Jan. 22, 1991
Dieter Rogge, Lengerich, DE;
Windmoller & Holscher, Lengerich, DE;
Abstract
A doctor device for the washing inking unit of a rotary printing press includes a doctor carrier, on which two doctor blades are attached. The doctor blades are parallel to and coextensive with each other and are able to be put into engagement with an inking roller. Together with the inking roller, the doctor carrier and sealing means provided at the end thereof, the doctor blades define a sealed ink chamber. The ink is supplied to and removed from the ink chamber through ducts. The doctor carrier is able to be brought into engagement with the inking roller by sealing moldings. In order to ensure that no ink is able to escape from the ink chamber, even when the doctor device oscillates, the sealing moldings are formed of elastic or elastomeric material, which, on their sides facing the inking roller, have dihedral, downwardly sloping surfaces for supporting the end parts of the doctor blades. Between the dihedral surfaces, a curved sealing surface is provided. The curved sealing surface has the shape of a cylindrical shell and is able to be brought into engagement with the inking roller. The sealing surface has a radius of curvature corresponding to the inking roller.