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:
Nov. 13, 2018
Filed:
Nov. 05, 2014
Applicant:
Eagle Industry Co., Ltd., Tokyo, JP;
Inventor:
Takuto Fukuhara, Tokyo, JP;
Assignee:
EAGLE INDUSTRY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 46/24 (2006.01); B03C 1/033 (2006.01); B03C 1/28 (2006.01); F16J 15/00 (2006.01); F16J 15/32 (2016.01); F16J 15/34 (2006.01); F16J 15/43 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0005 (2013.01); B01D 46/24 (2013.01); B03C 1/0332 (2013.01); B03C 1/286 (2013.01); F16J 15/002 (2013.01); F16J 15/32 (2013.01); F16J 15/3444 (2013.01); F16J 15/43 (2013.01); B01D 46/0056 (2013.01); B01D 2271/02 (2013.01);
Abstract
A filter device () includes an annular filter () provided on a shaft () and a rotary seal () for sealing an annular gap between the filter () and a housing (). The rotary seal () includes an annular magnet () provided on the filter () and a flexible annular sealing member () provided on the housing (). The sealing member () is provided on an upstream side of the magnet () and includes an annular opposing portion () that opposes the magnet () in an axial direction, and a magnetic fluid () soaked into the opposing portion (). The opposing portion () makes contact with the magnet ().