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:
Apr. 23, 2002
Filed:
Jul. 09, 1999
Applicant:
Inventors:
William R. Frank, Bettendorf, IA (US);
Jonathan Dorricott, Davenport, IA (US);
Laurie E. Collins, Regina, CA;
Joseph D. Russo, Bettendorf, IA (US);
Robert J. Boecker, Bettendorf, IA (US);
Brian H. Wales, Davenport, IA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 1/116 ;
U.S. Cl.
CPC ...
B22D 1/116 ;
Abstract
Surface defects in rolled steel are remedied by quenching a surface layer of the strand immediately downstream of the caster by transversely differential quenching to match the transverse temperature profile of the strand. The flow rate of the quench spray is differentially adjustable across the width and optionally the length of the strand. An array of spray nozzles controlled by groups provides the quench spray.