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:
Jun. 22, 2004
Filed:
Apr. 03, 2002
Applicant:
Inventors:
Peter Bartha, Bovenden, DE;
Hans-Jurgen Klischat, Gleichen, DE;
Holger Wirsing, Goettingen, DE;
Guido Weibel, Scheden, DE;
Assignee:
Refratechnik Holding GmbH, Ismaning, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/544 ; C04B 3/5443 ;
U.S. Cl.
CPC ...
C04B 3/544 ; C04B 3/5443 ;
Abstract
A material for refractory shaped bodies or compounds, the material being a pleonaste and/or a spinel of the pleonaste type. In addition to FeO and Al O , the material also includes MgO. The ratio of the iron in the material is calculated as Fe O :Al O , and ranges from 30:70 to 50:40. The material contains from 20 to 60% by mass of MgO, as based on Fe O +Al O .