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. 29, 2015
Filed:
Feb. 02, 2012
Applicants:
Maik Grebe, Bochum, DE;
Wolfgang Diekmann, Waltrop, DE;
Stefan Altkemper, Dorsten, DE;
Inventors:
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29C 35/08 (2006.01); B29C 41/02 (2006.01); B29C 67/00 (2006.01); B22F 3/105 (2006.01); B29B 13/00 (2006.01);
U.S. Cl.
CPC ...
B29C 67/0077 (2013.01); B22F 3/1055 (2013.01); B22F 2003/1056 (2013.01); B29B 13/007 (2013.01); Y10T 428/24612 (2015.01);
Abstract
A process for the layer-by-layer production of three-dimensional objects, through selective melting and solidification of pulverulent substrates is provided. According to the process the construction chamber is inertized with an inertizing gas which is of higher density than air. An apparatus for conducting the process is also provided.