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. 09, 2020
Filed:
Aug. 29, 2018
Heidelberger Druckmaschinen Ag, Heidelberg, DE;
Andreas Mueller, Heidelberg, DE;
David Ehrbar, Walldorf, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A printing device includes an ink jet print head having individually controllable nozzles for jetting ink drops. An ink line connected to a chamber has a feed and/or return line for the print head. The print head, ink line and chamber move jointly relative to printing material. The ink line is part of a circulation ink supply system for the print head. A mass element associated with the chamber has a position and/or shape relative to the chamber changing as a function of the joint movement so that the chamber volume is a function of the position and/or shape of the mass element to compensate for pressure fluctuations and/or movements of the ink and avoid problems in the ink supply system for a print head in industrial, high-performance ink jet printing and in cooperation with circulation ink supply systems conveying large volumes of ink.