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:
Jan. 06, 1981
Filed:
Jul. 18, 1979
Applicant:
Inventors:
Pierre J Leroy, St. Germain en Laye, FR;
Jean P Bastien, Saint Priest en Jarez, FR;
Emile J Sprunck, Moyeuvre, FR;
Assignee:
Creusot-Loire, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266268 ; 75 60 ;
Abstract
An improved construction for the refining gas passage of a tuyere for use in refining molten metal in a converter. The transverse section of the refining gas passage has a continuous outer enclosure and a central opening defining a plurality of radially extending branches whose total perimeter exceeds the circumference of a circle having an area equivalent to the central opening.