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:
Apr. 16, 1991
Filed:
Dec. 12, 1988
Mark C Kernion, East Pittsburgh, PA (US);
Ben Davies, deceased, late of Pittsburgh, PA (US);
Dresser Industries, Inc., Dallas, TX (US);
Abstract
A slide gate assembly for use with a metal-working vessel comprising at least one stationary refractory plate and at least one sliding refractory plate slidably engaged with said stationary plate, said refractory plates each having at least one passage therethrough and spaced in relation to each other such that said sliding refractory plate can be moved to bring its passage into and out of alignment with the passage of said at least one stationary plate to effect discharge or retention of molten metal in said metal-working vessel; at least a portion of each of said refractory plates consisting essentially of an unburned high-strength carbon-bonded magnesite refractory containing at least about 5% by weight carbon and at least about 74% by weight magnesite.