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:
Nov. 03, 2020
Filed:
Nov. 14, 2017
CL Schutzrechtsverwaltungs Gmbh, Lichtenfels, DE;
Jens Stammberger, Rödental, DE;
Christian Diller, Lichtenfels, DE;
Ralf Hetzel, Bad Staffelstein, 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, comprising a pipe structure (), and a filter device () that is connected to the pipe structure (), provided for filtering the process gas (), wherein the filter device () comprises several filter modules () that can be or are arranged exchangeably connected to the pipe structure ().