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:
Apr. 27, 2021
Filed:
Nov. 13, 2017
CL Schutzrechtsverwaltungs Gmbh, Lichtenfels, DE;
Florian Bechmann, Lichtenfels, DE;
Tobias Dressel, Wilhelmsthal, DE;
Viktor Engel, Coburg, DE;
Christian Diller, Lichtenfels, DE;
Concept Laser GMBH, Lichtenfels, DE;
Abstract
An apparatus () for additive manufacturing of three-dimensional objects () by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material () that can be solidified by means of an energy beam in a process chamber () of the apparatus with a defined process chamber height (H), comprising a flow device () provided for generating an, especially inert, gas flow () flowing through the process chamber () between an inflow section () and an outflow section (), wherein the gas flow () flows through the process chamber () across the entire process chamber height (H), wherein the gas flow () is subdivided into several partial gas flows (-) flowing through the process chamber () parallel on top of each other, which differ in at least one flow parameter affecting the flow characteristics of the respective partial gas flows (-).