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:
Sep. 10, 1985
Filed:
May. 02, 1983
Otto Karl, Vienna, AT;
Veitscher Magnesitwerke-actien-Gesellschaft, Vienna, AT;
Abstract
A prismatic brick of refractory material for the checker work in chambers of a glass melting furnace, the brick having an octagonal bottom surface, an octagonal top surface, a longitudinal axis extending between the surfaces, a through passage of tetragonal cross section between the surfaces and coaxial with the longitudinal axis, inner walls defining the through passage, outer walls between the surfaces, the walls being parallel to the longitudinal axis, the bottom and top surfaces extending along major axes, one of the surfaces having elevated portions and the other surface having corresponding depressed portions extending in the direction of the major axes, and a passage extending from the through passage to a respective one of the outer walls from at least one of the inner walls.