Patent · US Active

Device for inductive injection of thermal energy into a printing form for fixing an image

US7411164B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Michael Wagner · Bad Abbach, DE
Thomas Kothmayr · Hachenburg, DE
Franz Peter Weissgärber · Augsburg, DE
Johann Dieter Bierl · Starnberg, DE

Key dates

Filing date	May 5, 2005
Grant date	Aug 12, 2008
Priority date	—
Expiry date	Aug 18, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/145
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An image fixing device inductively injects thermal energy into a rotating printing form of a press for fixing an image formed on the rotating printing form by means of a digital imaging system. The fixing device has at least one inductor with at least one induction loop, a high-frequency part that forms a tuned circuit with the inductor, and a supply part that can be coupled to the inductor by means of supply lines suitable for high frequency. The inductor loop is in an elongated form aligned parallel to the circumferential direction of the rotating printing form, with the effect that the zone of energy transfer and therefore the heating zone can be configured specifically in terms of its spread in the printing form, so that a high flux density can be introduced zonally into the printing form at the point which is to be heated.

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