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. 27, 2015
Filed:
Nov. 12, 2008
Gerald Nitzl, Bocholt, DE;
Norman Edward Rogers, Derbyshire, GB;
Gerald Nitzl, Bocholt, DE;
Norman Edward Rogers, Derbyshire, GB;
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO KG, Vienna, AT;
Abstract
Stopper rod having an elongate body with an inlet at an upper first end and an outlet at a lower second end. The second end of the body defines a nose for insertion into a tundish outlet. A continuous axial bore extends through the body from the inlet in the first end to the outlet in the second end. A restrictor having an inlet, an outlet and a passageway therebetween is positioned in the axial bore such that the inlet of the restrictor is closer to the first end than the second end. A gas supply conduit is arranged to supply gas into the axial bore above the inlet of the restrictor.