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.

Date of Patent:
Dec. 20, 2022

Filed:

Jan. 24, 2020
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventors:

Toshikazu Kawaguchi, Nagaokakyo, JP;

Masaru Banju, Nagaokakyo, JP;

Takashi Kondo, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2022.01); B01D 12/00 (2006.01);
U.S. Cl.
CPC ...
B01D 46/005 (2013.01); B01D 12/00 (2013.01); B01D 2201/32 (2013.01); B01D 2311/04 (2013.01); B01D 2311/25 (2013.01);
Abstract

A filtration device includes a first channel member, a second channel member, and a filter. The first channel member has a recess recessed inward from an outer wall surface. A groove is formed is the recess and has an opening in a recessed surface of the recess. First and second channels, each defined by a through-hole, are formed in the first channel member and are connected to the groove. A first connection part connects the groove with the first channel. The second channel member has a projection that detachably mates with the recess. The second channel member includes a discharge channel that has an opening in a projecting surface of the projection, the opening being located over the groove. The filter is disposed along the groove, and positioned at the opening of the discharge channel. When the first and second channel members are placed in a operative relationship, a third channel is formed by the projecting surface of the projection and the opening of the groove. The third channel is connected to the first channel via the first connection part. The third channel at which the filter is positioned has a smaller cross-sectional area than the first channel.


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