Bottom pour tiles with self sealing joint for pouring liquid ste

Details Bottom pour tiles with self sealing joint for pouring liquid ste Bottom pour tiles with self sealing joint for pouring liquid ste

1990-09-27

1992-06-02

Reese, Randolph A.

Dispensing

Molten metal dispensing

Flow controllers or assists

285284, 2853321, 285423, 285917, 285187, 266236, F16L 4900

Patent

active

051180162

ABSTRACT:
A low tolerance joint connecting a pair of hollow refractory bricks, e.g., center riser bricks, runner bricks, etc., together for carrying molten metal, e.g., steel, therethrough. Each brick has a pair of ends with a central passageway extending therebetween. One end of one brick comprises a conical walled annular flange projecting therefrom and a shoulder extending about the annular flange. One end of the other brick comprises a matingly shaped circular recess and shoulder extending about the circular recess. The joint comprises the interface between the adjacent surfaces of the annular flange and recess when the flange is located therein. The interface thus formed is an elongated space, free of mortar or other sealing material, into which the molten metal flows to freeze therein and thereby form a seal precluding its egress from the passageway to the ambient surroundings.

REFERENCES:
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patent: 3931913 (1976-01-01), Meier
patent: 4171832 (1979-10-01), Metcalfe
patent: 4363504 (1982-12-01), DeFeo et al.
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patent: 4618126 (1986-10-01), Tinnes et al.
patent: 4660808 (1987-04-01), Duassan et al.
patent: 4747580 (1988-05-01), Tinnes et al.
patent: 4984769 (1991-01-01), Bruckner et al.

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