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:
Feb. 07, 2023
Filed:
Dec. 03, 2019
3d Systems, Inc., Rock Hill, SC (US);
David Sabo, San Diego, CA (US);
3D SYSTEMS, INC., Rock Hill, SC (US);
Abstract
A three-dimensional printer includes a light engine, a support plate, and a resin vessel. The light engine is configured to selectively harden photocurable resin at a build plane in the resin vessel. The support plate is formed from cast metal and is in a fixed vertical relation to the light engine. The support plate includes an upper side with an upstanding ridge. The upstanding ridge has an upper datum surface that has been machined to a controlled height. The support plate also includes a separately formed ring disposed upon the upper datum surface. The separately formed ring defines a crest of the upstanding ridge. The resin vessel includes a transparent sheet that defines a lower bound for resin contained in the resin vessel. The transparent sheet impinges upon the crest to define a vertical location of the build plane in relation to the light engine.