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:
Dec. 13, 2011
Filed:
May. 22, 2006
Albert Fruth, München, DE;
Hans Perret, München, DE;
Albert Fruth, München, DE;
Hans Perret, München, DE;
EOS GmbH Electro Optical Systems, Krailling, DE;
Abstract
An apparatus for layerwise manufacturing of a three-dimensional object by solidification of a material, which can be solidified via electromagnetic radiation, includes a source for the electromagnetic radiation, a building space for manufacturing the three-dimensional object, a coupling window, for transmitting the electromagnetic radiation into the building space and a heating element for heating the coupling window. By the heating element the temperature of the lens is increased during the building of the three-dimensional object. By the increased temperature the accumulation of contamination on the coupling window is prevented.