Stopper rod with an improved gas distribution

Details Stopper rod with an improved gas distribution Stopper rod with an improved gas distribution

1990-07-19

1991-12-10

Seidel, Richard K.

Dispensing

Molten metal dispensing

Flow controllers or assists

222603, 266272, 266225, 164259, 164415, 164437, 164337, B22D 3700

Patent

active

050710435

ABSTRACT:
The stopper rod for regulating the flow of a liquid has a body traversed by an axial channel and having at one end a porous nose fed with gas from the channel. The nose has a free space in the form of a hemisphere-shaped slot or lattice network communicating with the channel for delivery of gas thereto. Preferably, a plurality of spaced-apart bridges of solid material connect the two faces of the free space in order to increase the strength of the porous nose.

REFERENCES:
patent: 3083422 (1963-04-01), Finkl
patent: 3214804 (1965-11-01), Saccomano
patent: 4492365 (1985-01-01), Desaar
patent: 4520861 (1985-06-01), Sobolewski
patent: 4779775 (1988-10-01), Kimura et al.
patent: 4791978 (1988-12-01), Fishler
World Intellectual Property Organization Publication No. 85/05056 (21-11-85) by Lee.
Japanese Patent Abstract, vol. 10, No. 273, dated Sep. 17, 1986.

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