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. 03, 1988
Filed:
Oct. 20, 1986
Applicant:
Inventors:
Sudhir K Sharma, Center Valley, PA (US);
Guido P Brita, Bethlehem, PA (US);
Philip D Stelts, Center Valley, PA (US);
Assignee:
Bethlehem Steel Corporation, Bethlehem, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
266266 ; 266 99 ; 266218 ;
Abstract
Apparatus for introducing reactive and nonreactive gases through the refractory lining of a metallurgical vessel, such as bottom injection of such gases into a BOF to improve mixed blowing efficiency. The apparatus comprises one or more refractory blocks which may be set within a metal canister. The refractory blocks have a plurality of slots each containing one or more small diameter nonreactive metal tubes for conveying gases. The refractory block may also contain means for measuring the rate of wear of the refractory blocks in the canister.