Plastic and nonmetallic article shaping or treating: processes – With step of cooling to a temperature of zero degrees c. or...
Patent
1996-06-14
1998-02-10
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
With step of cooling to a temperature of zero degrees c. or...
264628, 264629, 264635, 55523, C04B 3328
Patent
active
057165599
ABSTRACT:
Ceramic filter of various configuration have been used to filter particulates from hot gases exhausted from coal-fired systems. Prior ceramic cross-flow filters have been favored over other types, but those previously horn have been assemblies of parts somehow fastened together and consequently subject often to distortion or delamination on exposure hot gas in normal use. The present new monolithic, seamless, cross-flow ceramic filters, being of one-piece construction, are not prone to such failure. Further, these new products are made by novel casting process which involves the key steps of demolding the ceramic filter green body so that none of the fragile inner walls of the filter is cracked or broken.
REFERENCES:
patent: 3437723 (1969-04-01), Habermann
patent: 3512571 (1970-05-01), Phelps
patent: 4246209 (1981-01-01), Johannson
patent: 4343631 (1982-08-01), Giberti
patent: 4417908 (1983-11-01), Pitcher
patent: 4975225 (1990-12-01), Vivaldi
patent: 5009781 (1991-04-01), Goldsmith
Bacchi David P.
Collins, III Edwin L.
Connors Timothy F.
Larsen David A.
Blasch Precision Ceramics, Inc.
Derrington James
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