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:
Aug. 03, 1999
Filed:
Mar. 20, 1998
Applicant:
Inventor:
Michael J Strelbisky, Burlington, CA;
Assignee:
A.H. Tallman Bronze Co, Ltd., Burlington, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266 47 ; 266135 ; 266270 ; 266D / ;
Abstract
A method of removing slag and/or steel build-up from lances in steel making furnaces includes blasting dry ice (solid CO.sub.2) pellets on to a hot lance as it is being drawn out of a furnace. A refractory or ceramic coating may be applied to the lance while it is being inserted into the furnace.