Patent · US Expired

System for controlling a plurality of resistive heating elements

US5990459A · kind A · utility

18Cited by

5References

13Claims

0Family size

Assignees

David & Baader DBK · DE
Alcatel SEG AG · DE

Inventors

Hans-Peter Feustel · Roth, DE
Klaus Beetz · Karlsruhe, DE
Franz Bohlender · Kandel, DE

Key dates

Filing date	Oct 14, 1997
Grant date	Nov 23, 1999
Priority date	—
Expiry date	Oct 14, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG05B11/06
WIPO fieldControl
WIPO sectorInstruments

Abstract

An electric heating system comprising at least two electric heating resistors, the heating power of which being adjusted by a control device comprising a plurality of controllers each one of which has one of the electric heating resistor associated with it, wherein the control range of the control means is distributed over the controllers and wherein a different control range is associated to each controller.

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