Patent · US Expired

Sheet guide arrangement in a printing machine

US6726203B1 · kind B1 · utility

1Cited by

7References

6Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Peter Michel · Burgdorf, CH
Petra Franz · Offenbach, DE
Stefan Hartmann · Eggolsheim, DE
Peter Wulf · Ennepetal, DE

Key dates

Filing date	Jun 11, 2001
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Jun 11, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F21/102
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An air assisted sheet guide device in a printing machine which is operable during either positive pressure (blast) air operation as well as suction air operation to permit reliable and stable sheet guidance with reduced air flow turbulence. The sheet guide device includes at least one module that defines a guide surface having air flow openings therein and an air flow channel, and a pneumatic system for creating either a positive or suction pressure generated air flow in the flow channel. One or more plate-like air directional elements are mounted within the air flow channel which create a uniform pressure distribution on the guide surface during positive (blast) air operation and which more uniformly direct air to the pneumatic system during suction pressure operation.

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