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:
Oct. 11, 2011

Filed:

Oct. 03, 2007
Applicants:

Tomoyuki Shinkai, Aichi, JP;

Takahiro Harada, Chiryu, JP;

Kazuhiro Asayama, Nagoya, JP;

Kazuki Watanabe, Toyota, JP;

Inventors:

Tomoyuki Shinkai, Aichi, JP;

Takahiro Harada, Chiryu, JP;

Kazuhiro Asayama, Nagoya, JP;

Kazuki Watanabe, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 41/12 (2006.01); B24B 33/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a dummy head (a jig for processing a cylinder block) having a dummy head body deforming a cylinder bore by assembling into a mounting surface of the cylinder block by bolt fastening, during the finish processing of the cylinder bore, a boss having a contact surface contacting a peripheral portion of the cylinder bore on the head mounting surface is provided on a mounting surface side for the cylinder block of the dummy head body, and at least the dummy head body has a higher rigidity than the cylinder block.


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