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:
Jul. 15, 2008

Filed:

Sep. 29, 2004
Applicants:

Nobumitsu Okazaki, Okayama, JP;

Yoshihiro Takaya, Okayama, JP;

Takashi Matsutani, Toyota, JP;

Takanori Nakada, Toyota, JP;

Makoto Hatano, Aichi, JP;

Takashi Kubota, Aichi, JP;

Inventors:

Nobumitsu Okazaki, Okayama, JP;

Yoshihiro Takaya, Okayama, JP;

Takashi Matsutani, Toyota, JP;

Takanori Nakada, Toyota, JP;

Makoto Hatano, Aichi, JP;

Takashi Kubota, Aichi, JP;

Assignees:

Uchiyama Manufacturing Corp., Okayami-shi, Okayama, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Alsan Kogyo Kabushiki Kaisha, Obu-shi, Aichi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A production method of a water jacket spacer for use in a cylinder block with a water jacket formed around plural cylinder bores. The method comprises the fist step of integrally forming a tubular spacer body with a peripheral wall and a connecting bridge by way of synthetic resin molding so that corresponding regions of the peripheral wall are connected to each other via the connecting bridge, and the second step of cooling the tubular spacer body, with the connecting bridge fixed thereto, to prevent deformation of the tubular spacer body during the cooling process, and the third step of removing the connecting bridge from the tubular spacer body.


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