Patent · US Expired

Sheet-fed rotary offset printing machine with a plurality of printing units in series configuration

US5524538A · kind A · utility

7Cited by

11References

4Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Michael Voge · Malsch, DE
Oliver Koch · Eppelheim, DE

Key dates

Filing date	May 15, 1995
Grant date	Jun 11, 1996
Priority date	—
Expiry date	May 15, 2015

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F7/06
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Oscillations caused by machine dynamics in a sheet-fed rotary offset printing machine affect the print quality. The disturbing oscillations are reduced in that printing units of the printing machine are offset relative to one another at a phase angle at which identical print events in at least two printing units occur simultaneously.

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