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:
Sep. 23, 1986
Filed:
Feb. 21, 1985
Applicant:
Inventors:
Sadayuki Saito, Chiba, JP;
Shunji Hamada, Chiba, JP;
Tadaaki Iwamura, Chiba, JP;
Ryoji Takabe, Chiba, JP;
Assignee:
Kawasaki Steel Corporation, Kobe, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266 83 ; 266216 ; 266267 ;
Abstract
Disclosed herein is an apparatus for blowing a powdery refining agent into a refining vessel which is adapted to blow the powder into a molten metal bath of the refining vessel together with a refining gas by feeding the powder from a pressure vessel to a main pipe for the supply of the refining gas. The pressure vessel is connected to the main pipe through a plurality of transportation pipes each provided with an on-off valve and connected to a secondary gas pipe for introduction of the refining gas downstream of the on-off valve. The secondary gas pipe is provided with a flow control valve.