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:
Oct. 24, 1978
Filed:
Aug. 12, 1977
Applicant:
Inventors:
Hans Gruner, Duisburg, DE;
Hans Schrewe, Duisburg, DE;
Fritz Peter Pleschiutschnigg, Dusseldorf, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 53 ; 75 58 ; 75129 ;
Abstract
The steel in a tundish is treated under pressure to add Ca, Mg or a rare earth for reducing dendritic and enhancing globulitic crystallation.