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, 1980
Filed:
Aug. 30, 1978
Applicant:
Inventors:
Yoshihiro Kajinaga, Chiba, JP;
Minoru Nitta, Chiba, JP;
Ichio Sakurada, Chiba, JP;
Shunji Ito, Chiba, JP;
Assignee:
Kawasaki Steel Corporation, Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22D / ; C22C / ;
U.S. Cl.
CPC ...
266129 ; 219 1047 ; 219 / ; 219 1051 ; 266137 ; 266259 ;
Abstract
A shaft furnace for producing low-oxygen iron-base metallic powder for metallurgy is disclosed. The shaft furnace comprises a zone of storing and feeding a metallic raw powder, a preheating zone, an induction heating zone and a zone of cutting and cooling a product cake in a vertical array from top to bottom. The preheating zone and induction heating zone have a special structure for ensuring a smooth descent of the raw powder and the cake.