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:
Jan. 30, 1990
Filed:
Jun. 30, 1988
Applicant:
Inventors:
Arndt Jentzsch, Coswig, DD;
Wolfgang Mueller, Coswig, DD;
Falko Missbach, Meissen, DD;
Volker Eichler, Weinboehla, DD;
Assignee:
Veb Kombinat Polygraph 'Werner Lamberz' Leipzig, Leipzig, DD;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41F / ; B41L / ;
U.S. Cl.
CPC ...
101350 ; 101483 ;
Abstract
A stepper drive for an ink doctor roller of a rotary printing machine is power supplied by incremental voltages of uniform magnitude derived from the rotary speed of the machine. The magnitude of an ink metering step of the doctor roller is selected in an evaluation unit which determines the number of incremental voltages supplied to the stepper drive. At the same time, the rate of the selected metering steps is selected in dependency on the rotary speed of the machine by a rate selection means.