Ceramic foam filter body having a gasket chemically and mechanically bonded thereto
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United States of America Patent
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Sep 15, 1992
Issued Date -
N/A
app pub date -
May 31, 1991
filing date -
May 24, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to ceramic foam filters having a gasket material chemically and mechanically bonded thereto. The filters have particular utility in the filtration of molten metal, especially aluminum. The filters are formed by immersing the porous filter body, preferably in a fired condition, in a gasketing medium consisting of a concentration of ceramic fibers, one or more binders, and the balance a vehicle such as water and applying a vacuum through the porous filter to draw the gasketing medium into contact with the portions of the filter body to be gasketed.
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