Skull pot for melting or refining inorganic substances

US6577667B1 · kind B1 · utility

Assignee

• Schott Glas · DE

Inventors

• Hildegard Römer · Karben, DE
• Wolfgang Schmidbauer · Mainz, DE
• Werner Kiefer · Ingelheim am Rhein, DE
• Guido Räke · Bingen, DE
• Frank-Thomas Lentes · Bingen, DE

Key dates

• Filing date: Jun 12, 2002
• Grant date: Jun 10, 2003
• Expiry date: Jun 12, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/57
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

According to the invention, the skull pot is provided with the following characteristics: a pot wall (1), a bottom (3) and an induction coil (9) which surrounds the pot wall (1) and by means of which high-frequency energy can be coupled into the contents of the pot. The pot wall (1) is made of a ring of metal pipes (1.1) which can be connected to a cooling medium. Slits are embodied between adjacent metal pipes (1.1). The metal pipes (1.1) are bent at a right angle at the upper ends thereof in such a way that said pipes extend towards the outside, when the pot wall (1) is viewed from above, and form a collar (2). The collar (2) is surrounded by an additional wall (upper wall 4). The upper edge of said wall is situated on a higher level than the collar (2) in such a way that the melt covers the collar (2) during operation.