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:
Feb. 03, 2009
Filed:
Dec. 19, 2006
Koei Nakabayashi, Hachinohe, JP;
Mitsutoyo Tanaka, Chino, JP;
Tokihiro Shimura, Hachinohe, JP;
Yoshinari Tanaka, Hachinohe, JP;
Koei Nakabayashi, Hachinohe, JP;
Mitsutoyo Tanaka, Chino, JP;
Tokihiro Shimura, Hachinohe, JP;
Yoshinari Tanaka, Hachinohe, JP;
Seiko Epson Corporation, , JP;
Abstract
A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle having a first member and a second member by which an orifice for injecting water is defined. The first member has a gradually reducing inner diameter portion. A heat insulating layer for cutting off radiant heat emitted from the molten metal is formed on the gradually reducing inner diameter portion of the first member. the nozzle is configured to ensure that the gradually reducing inner diameter portion is prevented, under an action of the heat insulating layer, from being thermally deformed by the radiant heat of the molten metal but a region of the first member near the orifice is thermally deformed in such a direction as to reduce a size of the orifice by absorbing the radiant heat of the molten metal, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.