Patent · US Expired

Printing unit for rotary printing presses

US5046416A · kind A · utility

20Cited by

8References

9Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Norbert Freyer · Altenholz, DE
Norbert Thunker · Weinheim, DE

Key dates

Filing date	Jan 12, 1989
Grant date	Sep 10, 1991
Priority date	—
Expiry date	Jan 12, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41P2235/22
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Printing unit for rotary printing presses having at least one printing unit and at least one ink-conduction cylinder comprising an engageable and disengageable ink-reducing unit assigned to one of the ink-conducting cylinders and having at least one roller, a doctor blade engageable with the one roller and an ink-collection trough, the one roller, while printing is stopped but while ink is being supplied, being in engagement with the ink-conducting cylinder for removing from the ink-conducting cylinder substantially a like portion of ink film which would otherwise be removed by paper being printed in the printing unit.

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