Gas washing device

US4711432A · kind A · utility

Assignee

• Didier-Werke AG · DE

Inventors

• Michael James Heinz · Livermore, US
• Joachim Lange · Hagenbach, DE
• Udo Muschner · Tönisvorst, DE
• Herbert Naefe · Wiesbaden, DE
• Hans Rothfuss · Wiesbaden, DE
• Manfred Winkelmann · Krefeld, DE
• Hans Winkler · Backnang, DE

Key dates

• Filing date: Jun 23, 1986
• Grant date: Dec 8, 1987
• Expiry date: Jun 23, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D1/005
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A gas washing device includes a permeable gas sink, a gas inlet for supplying gas through the sink to a molten metal container, a gas flow meter positioned upstream of the gas inlet, and a further gas sink having a gas permeability greater than that of the first-mentioned gas sink and positioned between the gas inlet and the first-mentioned gas sink.