The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2001
Filed:
Aug. 14, 1998
Jin-Joo Park, Itami, JP;
Chihiro Kawai, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A ceramic filter module includes a plurality of passage holes (,) and internal passage holes (,) alternately arranged about a plurality of ceramic partitions (,). The internal passage holes are sealed at each end by seals (,). The partitions are at most 1 mm thick and allow fluid to be filtered as the fluid flows from passage holes (,) to the internal passage holes (,). A plurality of discharge holes (,) traversing through the ceramic partitions between adjacent internal passage holes or between an internal passage hole and an outer surface allow the permeate to exit. The module is a porous ceramic body that preferably has an average pore diameter of 1 &mgr;m and is composed of silicon nitride. The ceramic filter module has the advantages of low permeation resistance and very high permeability.