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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 9950442 B1

PDFFull Text
Date of Patent:
Apr. 24, 2018

Filed:

Nov. 14, 2014

Method of producing honeycomb structural body

Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Naohiro Hayashi, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Nahida Sultana

Int. Cl.
CPC ...
B28B 3/26 (2006.01); C04B 35/64 (2006.01); B28B 3/20 (2006.01); C04B 38/00 (2006.01); C04B 35/195 (2006.01); C04B 35/565 (2006.01); B29C 47/00 (2006.01); B29C 47/12 (2006.01); B01D 46/24 (2006.01); B01D 46/00 (2006.01); C04B 111/00 (2006.01); F01N 3/28 (2006.01); F01N 13/00 (2010.01); B29C 47/56 (2006.01);
U.S. Cl.
CPC ...
B28B 3/269 (2013.01); B01D 46/0001 (2013.01); B01D 46/2455 (2013.01); B29C 47/0028 (2013.01); B29C 47/128 (2013.01); C04B 35/195 (2013.01); C04B 35/565 (2013.01); C04B 38/0006 (2013.01); B29C 47/56 (2013.01); C04B 2111/0081 (2013.01); C04B 2235/6021 (2013.01); F01N 3/2828 (2013.01); F01N 13/017 (2014.06); F01N 2330/48 (2013.01);
Abstract

A method feeds raw material into a metal die and extrudes the raw material to produce a honeycomb molded body. The method fires the honeycomb molded body to make a honeycomb structural body. The metal die has a first metal die and a second metal die arranged at an upstream side of an extrusion direction of the raw material and a second metal die arranged at a downstream side of the extrusion direction of the raw material. The first metal die has a projection section and the second metal die has a penetration hole. The projection section is fitted to the penetration hole to assemble the first metal die and the second metal die. Communication holes formed in the second metal die communicate with raw material second feeding holes formed in the first metal die.

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