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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 9925700 B1

PDFFull Text
Date of Patent:
Mar. 27, 2018

Filed:

Dec. 27, 2013

Method and apparatus of manufacturing molding material, and method of manufacturing resin gear

Applicant:

Hitachi Chemical Company, Ltd., Tokyo, JP;

Inventors:

Masaya Ozawa, Tokyo, JP;

Masao Sugiyama, Tokyo, JP;

Assignee:

HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery, LLP

Primary Examiner:

Sing P Chan

Int. Cl.
CPC ...
B28B 1/26 (2006.01); B28B 19/00 (2006.01); B29C 33/44 (2006.01); B29C 45/17 (2006.01); B29C 45/26 (2006.01); B29C 43/36 (2006.01); B29B 11/12 (2006.01); B29B 11/16 (2006.01); B29C 43/58 (2006.01); B29C 70/12 (2006.01); B29D 15/00 (2006.01); F16H 55/06 (2006.01); F16H 55/17 (2006.01); B29K 105/12 (2006.01); B29L 15/00 (2006.01);
U.S. Cl.
CPC ...
B29C 43/361 (2013.01); B29B 11/12 (2013.01); B29B 11/16 (2013.01); B29C 43/58 (2013.01); B29C 70/12 (2013.01); B29D 15/00 (2013.01); F16H 55/06 (2013.01); F16H 55/17 (2013.01); B29C 2043/3628 (2013.01); B29C 2043/5833 (2013.01); B29K 2105/12 (2013.01); B29L 2015/003 (2013.01); F16H 2055/065 (2013.01);
Abstract

Provided herein is an apparatus of manufacturing a molding material for use in a method of manufacturing a molding material that can prevent a crack from occurring in the molding material. A cylindrical die () is slid downward along an upper hollow compression mold () and a lower hollow compression mold () with a molding material () held between the upper hollow compression mold () and the lower hollow compression mold (). After that, the upper hollow compression mold () is moved upward to relatively move the upper hollow compression mold () and the lower hollow compression mold () away from each other. After a slurry diffusion member () is removed, the molding material () is taken out.

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