Patent · US Expired

Method of and a circuit for metering ink in printing machines

US4896602A · kind A · utility

1Cited by

1References

6Claims

0Family size

Assignee

VEB Kombinat Polygraph Werner Lamberz Leipzig · DE

Inventors

Arndt Jentzsch · Coswig, DE
Wolfgang Mueller · Wappingers Falls, US
Falko Missbach · Whitemarsh, US
Volker Eichler · Coswig, DE

Key dates

Filing date	Jun 30, 1988
Grant date	Jan 30, 1990
Priority date	—
Expiry date	Jun 30, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F31/12
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A stepper drive for an ink doctor roller of a rotary printing machine is power supplied by incremental voltages of uniform magnitude derived from the rotary speed of the machine. The magnitude of an ink metering step of the doctor roller is selected in an evaluation unit which determines the number of incremental voltages supplied to the stepper drive. At the same time, the rate of the selected metering steps is selected in dependency on the rotary speed of the machine by a rate selection means.

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