Patent · US Expired

Rotary lead-through assembly for supplying an operating fluid to a rotor of a machine for processing printing material

US6776092B2 · kind B2 · utility

0Cited by

4References

5Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Andreas Geider · St. Leon-Rot, DE
Rolf Kündgen · Annaberg-Buchholz, DE

Key dates

Filing date	Mar 17, 2003
Grant date	Aug 17, 2004
Priority date	—
Expiry date	Mar 17, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F13/10
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A rotary lead-through assembly supplies an operating fluid to a rotor of a machine for processing printing material. An operating cylinder includes an expansion chamber and a piston having a piston outlet opening. The piston is mounted so as to be displaceable towards the rotor for coupling a rotor inlet opening and the piston outlet opening with one another. A pressure generator is connected both to the expansion chamber and to the rotor, when the openings are coupled with one another. A threshold value valve is disposed between the expansion chamber and the piston outlet opening. The valve is automatically openable when a given threshold value of an excess pressure of the operating fluid is exceeded. A machine for processing printing material is also provided.

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