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:
Dec. 25, 2001
Filed:
Jan. 07, 2000
Applicant:
Inventors:
Michael Hoffmann, Ranco, IT;
Marc Steen, Bergen, NL;
Victor Harrison, Alkmaar, NL;
Robert Danzer, Graz, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 1/908 ;
U.S. Cl.
CPC ...
B01J 1/908 ;
Abstract
The present invention concerns a method for producing a controlled atmosphere having an oxygen partial pressure of below 10,Pa and an operating temperature above 1000° C. According to the invention a furnace is vented by a gas mixture having an oxygen partial pressure lower than 10,Pa but higher than that of said controlled atmosphere, and that a partial volume of said furnace is submitted to a static electric field having a strength of at least 6V/cm and reducing the oxygen partial pressure in this partial volume by orders of magnitude. The invention also relates to a device for implementing this method.