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:
Jan. 07, 2020
Filed:
Jul. 26, 2018
Matsuura Machinery Corporation, Fukui, Fukui, JP;
Kouichi Amaya, Fukui, JP;
Toshihiko Kato, Fukui, JP;
Tetsushi Midorikawa, Fukui, JP;
Mitsuyoshi Yoshida, Fukui, JP;
Kazuhiro Shimizu, Fukui, JP;
Matsuura Machinery Corp., Fukui, Fukui, JP;
Abstract
A three-dimensional shaping apparatus includes a shaping table, a squeegee, a sintering device, a cutting device, transport pathwaysthrough which metal powder and fumes that have been discharged to the outer side of a shaping tankafter cutting with the cutting device, and metal powder that has been discharged to the outer side of a chambersurrounding the shaping tankwithout forming part of the laminated layer, are transported to a sifterlocated at the top of a powder tank, and supply devices for inert gas that does not react with the metal powder at an inletof each transport pathway, so as to suppress oxidation of metal powder in the transport pathway for collected metal powder and fumes, and also dust explosion due to sudden oxidation of the same.