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:
Dec. 23, 2008
Filed:
Sep. 16, 2004
Osamu Ohashi, Niigata, JP;
Koji Wada, Tsukuba-gun, JP;
Keiichi Minegishi, Tsukuba-gun, JP;
Yasunori Yoshida, Tsukuba-gun, JP;
Osamu Ohashi, Niigata, JP;
Koji Wada, Tsukuba-gun, JP;
Keiichi Minegishi, Tsukuba-gun, JP;
Yasunori Yoshida, Tsukuba-gun, JP;
SMC Corporation, Tokyo, JP;
Abstract
A method of connecting a plurality of aluminum alloys molded as a die cast member while maintaining the molded shape of the alloy is provided. An intermediate material in the form of plate or powder made of aluminum alloy is allowed to intercalate between mutually connecting surfaces of die cast members, the die cast member and/or intermediate material is constituted of an aluminum alloy, at least one of mutually contacting surfaces of the connecting surfaces and the intermediate material is constituted of a rough surface to enhance electric resistance between the contacting surfaces and the connecting surfaces are connected by applying electric current through the connecting surfaces.