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:
Jun. 25, 1985
Filed:
Dec. 13, 1983
Applicant:
Inventor:
Tsuneo Yoshimura, Tokyo, JP;
Assignee:
Mitsubishi Steel Mfg. Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
164468 ; 164473 ; 164475 ;
Abstract
A leaded, free-cutting steel is manufactured by a continuous casting process without causing any pollution of the environment or manufacturing apparatus by toxic gases or fumes and in a high yield of lead addition with a high quality, wherein lead, lead alloy, or a composite lead feed material comprising lead or lead alloy covered with a metallic material harmless for the steel such as, for example, aluminum or iron, is directly added to molten steel which is being electromagnetically stirred in the horizontal direction in a mold.