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:
Dec. 27, 2011
Filed:
Dec. 14, 2007
Applicants:
Kiyotaka Sugiura, Nagoya, JP;
Kohji Hattori, Hashima-Gun, JP;
Hiroyuki Oyachi, Handa, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 29/62 (2006.01); B01D 29/66 (2006.01); B01D 35/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filtration device is provided having a large number of filters, each comprising a filter element and a casing. The device includes filter strings constructed so that a plurality of filters are connected in a row by header tubes, at least two rows of filter strings are further connected in parallel by a filtrate recovery collecting tube, and the filtrate recovery collecting tube is placed at a higher position than the filtrate recovery header tubes.