Patent 7531086 was granted and assigned to FLSmidth on May, 2009 by the United States Patent and Trademark Office.
A pressure filter apparatus is shown and disclosed with a construction that permits the filter to be operated to produce food grade or pharmaceutical grade products where there are requirements for periodic cleaning, sterilizing or sanitizing of the apparatus. The structures of the filter apparatus are sloped or clad to drain any fluids away from the apparatus. The exterior can be washed in place and the interior can be washed with the exterior washing or can be operated with internal washing cycles.