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:
Oct. 09, 1984
Filed:
Aug. 12, 1983
Applicant:
Inventors:
Cecil M Jones, Worcester, MA (US);
Malcolm E Washburn, Princeton, MA (US);
Louis J Trostel, Jr, Princeton, MA (US);
Assignee:
Norton Company, Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501 89 ; 501 92 ; 501 97 ; 501 98 ; 501123 ; 501133 ;
Abstract
A novel raw batch and improved fired refractory cement is described. A bulk refractory grain mass is initially bonded with a fired bond, which upon being fired includes Si.sub.3 N.sub.4 and/or Si.sub.2 ON.sub.2 reaction component that better protects the ultimate high temperature sintered cement product from erosion when the cement is used as a liner for furnace walls, troughs, and runners that contain a flow of molten iron or slag, as well as induction furnaces which process corrosive slag.