Reinforced ceramic filter candle and method of making same
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United States of America Patent
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Jun 29, 1993
Grant Date -
N/A
app pub date -
Feb 4, 1991
filing date -
Feb 4, 1991
priority date (Note) -
Expired
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Abstract
A ceramic filter candle is formed by a skeleton of ceramic fibers and spaced apart metallic perforate reinforcing members bonded together by means of a ceramic binder and a porous ceramic coating material which partially fills the interstices between the fibers and the perforations in the reinforcing members. The candle is manufactured in a vacuum forming process wherein an aqueous slurry of the ceramic fibers and a ceramic binder is drawn through a generally cylindrical mold surface and the preformed tubular reinforcing members to deposit the fibers on the mold surface and over the reinforcing members. The fibers and the reinforcing members are subsequently coated with a ceramic material.
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