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. 15, 2005
Filed:
Oct. 26, 2001
Applicants:
Ulrich Fiebag, Rosenweg, DE;
Hans-joachim Timpe, Bahnhofstrasse, DE;
Uwe Tondock, Langer Hagen, DE;
Andreas Vihs, Bachstr, DE;
Inventors:
Ulrich Fiebag, Rosenweg, DE;
Hans-Joachim Timpe, Bahnhofstrasse, DE;
Uwe Tondock, Langer Hagen, DE;
Andreas Vihs, Bachstr, DE;
Assignee:
Kodak Polychrome Graphics, LLC, Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F007/30 ;
U.S. Cl.
CPC ...
Abstract
A method and an apparatus for the refreshment and reuse of loaded developers used in lithographic printing are disclosed. The pH of an aqueous, essentially silicate-free loaded developer is reduced to below about 11. Insoluble material is separated, and the pH increased to about 12.0 to 14.0 to produce a refreshed developer. The refreshed developer may be used to develop additional exposed printing plate precursors.