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:
Aug. 11, 2020
Filed:
Oct. 15, 2015
Ivoclar Vivadent Ag, Schaan, LI;
Technische Universität Wien, Vienna, AT;
Jörg Ebert, Buchs, CH;
Robert Gmeiner, Vienna, AT;
Ivoclar Vivadent AG, Schaan, LI;
Technische Universität Wien, Vienna, AT;
Abstract
A stereolithography device having a trough () for accommodating free-flowing, photopolymerizable material, a construction platform () suspended above the trough bottom on a lifting unit (), and having a heating unit for heating the photopolymerizable material in the trough. The heating unit has a transparent, electrically conductive layer (), which covers the entire area of at least the exposure region above the trough bottom, and which is provided outside the exposure region on opposing sides of the layer with electrical contacts () extended over the opposing sides, which are connected to a controlled electrical supplier to enable heating of the entire area of photopolymerizable material above the trough bottom in the exposure region by current flow through the layer.