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:
Oct. 20, 2015
Filed:
Oct. 23, 2012
Applicants:
Maik Grebe, Bochum, DE;
Sigrid Hessel-geldmann, Haltern am See, DE;
Wolfgang Diekmann, Waltrop, DE;
Inventors:
Assignee:
Evonik Industries AG, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29C 35/08 (2006.01); B32B 3/26 (2006.01); B29C 67/24 (2006.01); B29C 67/00 (2006.01); B22F 3/105 (2006.01);
U.S. Cl.
CPC ...
B29C 67/007 (2013.01); B22F 3/1055 (2013.01); B29C 67/0085 (2013.01); B22F 2003/1056 (2013.01); Y10T 428/24612 (2015.01);
Abstract
The present invention provides a process and an apparatus for the layer-by-layer production of three-dimensional objects, wherein material vapors formed during processing in the construction chamber are prevented from deposition on apparatus components by exposing the gases to deposition surfaces where the materials condense and deposit.