Furnace with homogeneous refractory tubular liner
AssigneeIndustrial Insulations, Inc.
InventorsCarl E. Frahme, Gary E. Wygant
Life of this patent
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Abstract
A high temperature furnace having an access opening and a thick-walled heat resistant lining comprising at least one homogeneous tubular member of multiple generally-tubular layers of vacuum deposited refractory fibers. Larger furnaces utilize two or more liner tubes in end-to-end abutment. The abutting ends may be rabbeted and internested to assure a heat barrier.
Claims8
That improvement in a high-temperature furnace having a tubular housing closed at one end and having an access closure at its other end, said improvement comprising a refractory lining for said housing comprising at least one homogeneous rigid tubular member formed of multiple generally annular layers of inter-bonded refractory fibers vacuum deposited from an aqueous suspension thereof to a wall thickness of at least three inches and having a density of the order of 10-12 pounds per cubic foot.
Dependencies are inferred from the claim text.