Patent · US Expired

Device for melting and/or refining inorganic compounds

US6414982B1 · kind B1 · utility

4Cited by

6References

6Claims

0Family size

Assignee

Schott Glas · DE

Inventors

Guido Räke · Bingen, DE
Michael Kohl · Britzingen, DE
Hildegard Römer · Karben, DE
Wolfgang Schmidtbauer · Mainz, DE
Werner Kiefer · Ingelheim am Rhein, DE

Key dates

Filing date	Aug 18, 2000
Grant date	Jul 2, 2002
Priority date	—
Expiry date	Aug 18, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/24
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high-frequency device for melting and refining inorganic compounds having a high-frequency oscillation system and a crucible. The high-frequency system includes an induction coil looping around the crucible and at least two oscillator circuits connectable in parallel to the induction coil and providing redundant high frequency energy. Each self-exciting oscillator includes one of the capacitors and the induction coil. The device may further include a power supply, a control cabinet having operating units, and a process control system.

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