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:
Mar. 18, 2003
Filed:
Jun. 06, 2001
Vincent Boisdequin, Naast, BE;
Vesuyius Crucible Company, Wilmington, DE (US);
Abstract
The present invention concerns a pouring tube of refractory material comprised of a tubular element and equipped at its upper end with a plane plate, the side faces and lower face of the said plate and the upper end of the tubular part being protected by a metallic case, said plate being reinforced in its lower face by mechanical means that increase its stiffness that is characterized in that these stiffening means are comprised of a plurality of U-shaped metallic pieces located on either side of the tube and attached fixedly to the part of the metal case protecting the lower face of the plate. These tubes present a greater resistance to the formation of cracks than conventional tubes.