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.:
Date of Patent:
Jan. 31, 2006
Filed:
Jul. 26, 2002
Applicants:
Hiroaki Kusunoki, Hiroshima, JP;
Tsutomu Masuda, Hiroshima, JP;
Koji Tomiya, Hiroshima, JP;
Inventors:
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Two beamsandperpendicular to a moving trajectory Q are formed in an intake port openingof a cylinder head material to serve as margins for interfering with deformation of the openingdue to softening of the material, thereby a deformation of the material and a void caused by the deformation can be prevented in the frictional stirring with the rotary tool.