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.

Date of Patent:
Nov. 22, 2022

Filed:

Sep. 03, 2019
Applicant:

Eos Gmbh Electro Optical Systems, Krailling, DE;

Inventor:

Sebastian Mehl, Puchheim, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 12/00 (2021.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B23K 26/00 (2014.01); B33Y 10/00 (2015.01); B22F 10/00 (2021.01); B23K 26/14 (2014.01); B23K 26/342 (2014.01); B23K 26/12 (2014.01); B22F 10/10 (2021.01);
U.S. Cl.
CPC ...
B22F 12/00 (2021.01); B23K 26/128 (2013.01); B23K 26/1438 (2015.10); B23K 26/342 (2015.10); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B22F 10/10 (2021.01); B33Y 10/00 (2014.12);
Abstract

In a method of providing a flow for a process chamber of a device for producing a three-dimensional object by layer-wise application and selective solidification of a building material in a build area a process gas is supplied to the process chamber in a lower altitude region of the process chamber, wherein the process chamber includes a gas inlet for introducing the process gas into the process chamber and a gas outlet for discharging the process gas from the process chamber. The gas inlet and the gas outlet are provided in the lower altitude region of the process chamber and the process gas flows in a main flow from the gas inlet to the gas outlet, and wherein a secondary flow is located in a sub-region of the lower altitude region, which sub-region is located above a bottom surface of the process chamber surrounding the build area.


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