Indresco Inc.

Stanley A Smith

John N Snyder

Lawrence D Fitch

A brick for use in a high temperature furnace, or the like, having a body portion with at least one tongue and groove pair in at least one of the body surfaces with anchor means formed integrally with the body portion. Tie-back brick assemblies are formed by mating at least two of such brick and clamping them together.

Offsetting interlocking tie-back assembly

Mixes for forming high alumina refractory shapes with high resistance to aluminum penetration comprising at least about 60% by weight aluminum oxide, about 1 to 5% by weight boron phosphate, and about 5 to 15% by weight silicon carbide. A phosphorous-containing binder is added and the mix can be formed into brick which when cured or burned to a temperature below the oxidation temperature of silicon carbide can be used to minimize aluminum penetration and dross when the brick are employed in a metallurgical vessel in contact with molten aluminum.

Growing community of inventors

Pittsburgh, PA, United States of America

Stanley A Smith