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:
Jul. 21, 1998
Filed:
Feb. 27, 1996
Toshihiro Murakawa, Saitama-ken, JP;
Mitsuo Kuwabara, Saitama-ken, JP;
Yukihiro Yaguchi, Saitama-ken, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An arm main body of a welding gun is formed of an aluminum alloy. An anodic oxide coating is formed on an entire surface of the arm main body. The arm main body is then machined to remove the anodic oxide coating formed on a power feeing terminal portion and an electrode tip connecting portion which are provided in the arm main body. The anodic oxide coating may be subjected to a sealing treatment with a dispersion liquid in which a magnetic material is mixed in dispersion. Alternatively, the arm main body formed of an aluminum alloy may be subjected to an anodic oxide coating treatment with a treatment liquid in which a magnetic material is mixed in dispersion.