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:
Feb. 01, 1983
Filed:
Jul. 06, 1981
Applicant:
Inventor:
Robert H Ogletree, Carrollton, GA (US);
Assignee:
Southwire Company, Carrollton, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75129 ; 75 53 ; 75 58 ;
Abstract
A resulfurized ferrous alloy including lead characterized in that the lead is well dispersed in the steel matrix and the free lead globules are controlled as to size, is produced by introducing the lead into a steel melt in the form of a fine lead sulfide (PbS), or galena powder. The alloy produced exhibits improved machinability, which characteristic is further enhanced by the formation of manganese sulfide particles which are well distributed and have minimum aspect ratio (i.e., are round) when the melt has been deoxidized with manganese.