Patent · US Active

Device for supplying liquid ink to an ink print head in an ink printing machine

US11279136B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Joerg Fischer · Laboe, DE
Michael Schoepke · Schwentinental, DE

Key dates

Filing date	Jul 13, 2020
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Jul 13, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/18
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A device for supplying liquid ink to an ink print head in an ink printing machine includes an ink reservoir, a line for guiding the ink from the reservoir to the print head, a line for guiding the ink from the print head to the reservoir, and a damper for damping pressure fluctuations in the liquid ink. The damper has a movable and/or deformable membrane with a given thickness. In a position of repose, the membrane has a length L and a width W, and the length L is at least twice as long as the width W. The device renders possible in a simple and cost-efficient way to reliably avoid even large pressure fluctuations, in particular high pressure peaks in the liquid ink.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.