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:
Sep. 20, 2005
Filed:
Jun. 08, 2001
Masakatsu Yokota, Shinagawa-ku, JP;
Kenji Osumi, Kobe, JP;
Yutaka Nagakura, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Showa Denko K.K., Tokyo, JP;
Sky Aluminium Co., Ltd., Tokyo, JP;
Sumitomo Light Metal Industries, Ltd., Tokyo, JP;
Nippon Light Metal Company, Ltd., Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Mitsubishi Aluminum Co., Ltd., Tokyo, JP;
Abstract
The invention provides an internal filter with an improved filtering ability of removing particularly fine inclusion particles from molten aluminum or molten aluminum alloy. The internal filter includes an aggregate meshed member made of a refractory material and a coating layer formed on a surface of the aggregate meshed member. The coating layer contains a soda silicate that is able to be softened or viscous at a temperature of the molten aluminum alloy.