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:
Jun. 15, 2021
Filed:
Jan. 03, 2019
3d Systems, Inc., Rock Hill, SC (US);
Andrew Enslow, Escondido, CA (US);
3D Systems, Inc., Rock Hill, SC (US);
Abstract
A three dimensional printing system includes a resin vessel, a light engine, a movement mechanism, a support fixture, and a controller. The resin vessel is for containing a photocurable resin and has a lower portion with a transparent sheet. The light engine is configured to selectively project radiation up through the transparent sheet and over a build plane. The support fixture is coupled to the movement mechanism and has a lower rim that surrounds a central opening and faces the transparent sheet. The controller is configured to: (1) operate the movement mechanism to position the rim at an operating distance from the transparent sheet, (2) operate the light engine and the movement mechanism to form a particle trapping sheet that spans the central opening, and (3) operate the light engine and the movement mechanism to form the three dimensional article.