The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2003
Filed:
Aug. 24, 2000
Volkwin Koester, Kehl-Bodersweier, DE;
Techint Compagnia Tecnica Internazionale S.p.A., Milan, IT;
Abstract
The invention relates to a method for cooling a lance provided for converting a medium into a molten mass and/or for measuring the properties of the molten mass. A gas/liquid mixture is fed as a cooling medium into a cooling circuit which is closed up to the lance end ( ) situated on the melting side. The invention provides that the gas/liquid mixture or the components thereof is/are fed and permitted to expand under pressure up to the area of the lance end ( ) situated on the melting side. The invention also relates to a lance which has a mixing chamber ( ) connected to the cooling circuit The mixing chamber has the connections ( ) for a gas and liquid supply which is designed to produce the gas/liquid mixture, whereby the mixing chamber ( ) is connected via a pressure line ( ) to at least one two-component nozzle ( ) arranged in the area of the lance end ( ) which is situated on the melting side.