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:
May. 30, 2006
Filed:
Aug. 15, 2002
Masakuni Ezumi, Kudamatsu, JP;
Kazushige Fukuyori, Kudamatsu, JP;
Akihiro Satou, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The end of a hollow memberis abutted against the end of a hollow member. The end of a face plateis supported on a protrusion. A small-diameter portionof a rotary toolis inserted into the abutted area, and the toolis moved along the abutted region while being rotated in a clockwise direction as observed from the large-diameter potion. Thus, the pressure of mobilized metal is greater on the right side of the axial center of the rotary tool. The thickness of the member from the tip of the inserted small-diameter portionto the hollow areasandis thicker at the right side where the pressure is higher, thus preventing metal from flowing out into the hollow region