logo

For the Inventor, By the Inventor

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.:

US 9427687 B1

PDFFull Text
Date of Patent:
Aug. 30, 2016

Filed:

Apr. 02, 2014

Ceramic filter

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Makoto Teranishi, Nagoya, JP;

Hideyuki Suzuki, Nagoya, JP;

Manabu Isomura, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Amber R Orlando

Int. Cl.
CPC ...
B01D 39/06 (2006.01); B01D 39/14 (2006.01); B01D 39/20 (2006.01); B01D 50/00 (2006.01); B01D 24/00 (2006.01); B01D 63/06 (2006.01); B01D 65/00 (2006.01); B01D 71/02 (2006.01); C03C 8/24 (2006.01); C04B 38/00 (2006.01); B01D 46/24 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01D 39/2068 (2013.01); B01D 46/2429 (2013.01); B01D 46/2444 (2013.01); B01D 63/066 (2013.01); B01D 65/003 (2013.01); B01D 71/024 (2013.01); C03C 8/24 (2013.01); C04B 38/0012 (2013.01); B01D 2313/04 (2013.01); C04B 2111/00793 (2013.01);
Abstract

Provided is a ceramic filter that can be used for a long time at a high temperature, including a porous substrate having a partition wall that defines and forms a cell extending from one end face to the other end face, the porous substrate being made of ceramic a separation membrane disposed on a wall face in the cell; and glass seal disposed at the one end face and the other end face so as not to block open frontal areas of the cell. The glass seal includes glass and inorganic particles dispersed in the glass, the inorganic particles being made of clay, and a ratio of a coefficient of thermal expansion of the glass seal to a coefficient of thermal expansion of the porous substrate is 90% or less.

Find Patent Forward Citations

Loading…