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. 21, 1986
Filed:
Nov. 08, 1983
Andrew Barnes, Birmingham, GB;
Gary K Elliott, Stourbridge, GB;
William MacFarlane, Birmingham, GB;
Stephen T Pheasant, Makati, PH;
Foseco Trading A.G., Chur, CH;
Abstract
A refractory, heat-insulating slab for use in an inner, expendable lining of a tundish has a facing comprising magnesium oxide, inorganic binder but substantially no organic matter and a different backing. The facing has a combined water content not exceeding 2% by weight and the backing has a permeability of at least 10 AFS units. The facing and backing are joined together during formation of the facing or the backing. In the continuous casting of steel, the slabs have the advantage that there is little or no tendency for a significant amount of hydrogen to be picked up by the steel.