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US 3,942,293 AGranted
Metal oxide coated refractory brick
AssigneePPG Industries, Inc.
InventorRichard S. Cook
Life of this patent
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Abstract
Refractory brick that is treated with refractory metal oxide powder, e.g., titanium oxide, is used as a reactor lining. Joints between a dry assembly of refractory brick are filled with refractory metal oxide powder.
Claims4
A dry assembly of refractory bricks wherein joints between individual bricks are grouted with material consisting essentially of substantially dry, finely divided, free flowing refractory metal oxide powder having a melting point greater than the temperature to which the refractory brick is exposed, the exposed faces of said grouting consisting essentially of said refractory metal oxide powder.
Dependencies are inferred from the claim text.