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. 17, 2020
Filed:
Jul. 06, 2018
Nexa3d Inc., Ventura, CA (US);
Nexa3D Inc., Ventura, CA (US);
Abstract
A 3D printing apparatus includes a tank holding a photo-curing liquid polymer. A transparent membrane forms a bottom surface of the tank. A circular-shaped disk is disposed below the membrane, and is supported by a frame that has a radiation-transparent printing window. The liquid polymer is cured into desired shapes by exposure to radiation as the membrane is rotated about an axis. The rotation of the membrane causes a first region thereof to be rotated out of the printing window and a second region thereof to be rotated into the printing window. A light source projects the radiation through the printing window, through the second region of the membrane, into the photo-curing liquid polymer and onto a focal plane in the photo-curing liquid polymer, thereby curing a portion of the photo-curing liquid polymer.