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 7635514 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 22, 2009

Filed:

Jul. 01, 2004
Applicants:

Toru Shiraishi, Yokohama, JP;

Akihiro Katsuya, Yokohama, JP;

Inventors:

Toru Shiraishi, Yokohama, JP;

Akihiro Katsuya, Yokohama, JP;

Assignee:

NHK Spring Co., Ltd., Yokohama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/20 (2006.01); B32B 3/10 (2006.01); B32B 3/18 (2006.01); B32B 5/02 (2006.01); B28B 23/02 (2006.01); B28B 23/22 (2006.01); B22D 19/02 (2006.01); B22D 19/04 (2006.01); B22D 19/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portion of a reinforcing member has a stacked structurein which plural iron plates having openingsare stacked. A hollow portionis formed inside the stacked structure, so that the reinforcing member is reduced in weight. Porous bodiescomposed of non-woven fabric of metal fibers are disposed on surfaces contacting matrixes, so that adhesion between the reinforcing member and the matrix is improved, and peeling therebetween is prevented. A cast product which is composed of light metal and has the above reinforcing member has a small thermal expansion. For example, the cast product is desirable for use for a journal portion of an engine block.


Find Patent Forward Citations

Shiraishi, Toru. (2009). Reinforcing member, production method therefor, and engine block (U.S. Patent No. 7635514). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7635514

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