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. 16, 1999
Filed:
Mar. 26, 1997
Applicant:
Inventors:
Dong Xu, Milpitas, CA (US);
James W Evans, Piedmont, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
222594 ; 222606 ;
Abstract
Molten metal is fed to a caster in a continuous casting operation through a distributor that divides the molten metal into four streams flowing in circulating patterns from the central axis of the caster. Each stream sweeps first along the longer side wall of the caster toward the corner, then back along the shorter side wall toward the center line. The result is a higher degree of fragmentation of metal crystals as they form, and a better distribution of the fragments across the caster cross section, as well as a more even temperature distribution.