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:
Aug. 08, 2017
Filed:
Aug. 24, 2015
Applicant:
North American Refractories Company, Moon Township, PA (US);
Inventor:
Ronald L. Barrett, Fenelton, PA (US);
Assignee:
NORTH AMERICAN REFRACTORIES COMPANY, Moon Township, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 41/02 (2006.01); B66C 1/22 (2006.01); B22D 41/00 (2006.01);
U.S. Cl.
CPC ...
B22D 41/02 (2013.01); B22D 41/00 (2013.01); B66C 1/22 (2013.01);
Abstract
In a steel ladle used for handling molten steel, a precast ladle barrel ring forms part of a refractory structure that covers the bottom wall and side wall of the steel ladle. The precast ladle barrel ring is comprised of a monolithic annular ring formed of a high-temperature, cast refractory. The annular ring further includes means for positioning the precast ladle barrel ring in a steel ladle.