Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By means introducing treating material
Patent
1992-05-19
1995-06-13
Kastler, Scott
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By means introducing treating material
266217, 264 59, B22D 4158
Patent
active
054235219
ABSTRACT:
An insert member including a plurality of strand members having first and second ends and being oriented in a relative spatial relationship representative of a predetermined path, first end portions for mounting the first ends of the strand members and second end portions for mounting the second ends of the strand members, wherein the first and second means are separated by a predetermined distance to provide the predetermined spatial relationship of the strand members. Also, a combination for making a ceramic gas distribution device which includes this insert member and at least one ceramic in an unfired or green state cast partially therearound. The invention also provides methods for making a ceramic gas distribution device by placing a plurality of strand members in a predetermined orientation representative of a plurality of gas passages; casting a first ceramic about the strand members; allowing the cast ceramic to set to an unfired or green state; and firing the ceramic material to a final state while vaporizing the strand material therein to thus provide gas passages therein. The invention also relates to the ceramic gas distribution devices formed by these methods.
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Lewis Regis W.
Smith Todd E.
Snyder Ronald T.
Stover K. Lawrence
Kastler Scott
Quigley Company Inc.
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