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. 13, 2009
Filed:
Jul. 19, 2005
Naoto Sato, Hamamatsu, JP;
Tomohiko Tsuchiya, Hamamatsu, JP;
Toshihide Kiriyama, Hamamatsu, JP;
Syouji Takano, Hamamatsu, JP;
Katsuyoshi Aoshima, Hamamatsu, JP;
Naomi Takagi, Hamamatsu, JP;
Naoto Sato, Hamamatsu, JP;
Tomohiko Tsuchiya, Hamamatsu, JP;
Toshihide Kiriyama, Hamamatsu, JP;
Syouji Takano, Hamamatsu, JP;
Katsuyoshi Aoshima, Hamamatsu, JP;
Naomi Takagi, Hamamatsu, JP;
Yutaka Giken Co., Ltd., Shizuoka, JP;
Abstract
An impeller for a fluid transmitting device includes a hub and a bowl-shaped shell connected to an outer peripheral portion of the hub via an annular weld seam. An inner peripheral surface of the shell is fitted to an outer peripheral surface of the hub, and the weld seam is formed therebetween by laser welding over an entire length of fitting depth. Thus, it is possible to form the annular weld seam between the hub and the shell with a relatively small amount of heat input, and to precisely perform a visual inspection as to whether the weld seam is good or not without any skill.