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. 06, 2023
Filed:
Mar. 11, 2019
Applicant:
Planmeca Oy, Helsinki, FI;
Inventors:
Tero Rakkolainen, Helsinki, FI;
Juha Koivisto, Helsinki, FI;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/286 (2017.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B29C 64/245 (2017.01); B29C 64/129 (2017.01); B29C 64/30 (2017.01);
U.S. Cl.
CPC ...
B29C 64/286 (2017.08); B29C 64/129 (2017.08); B29C 64/245 (2017.08); B29C 64/30 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12);
Abstract
A stereolitography apparatus comprises a fixed vat () or a holder for receiving a removable vat for holding resin during stereolithographic 3D printing, and a radiation source () for generating radiation capable of polymerizing portions of said resin in said vat. (). The apparatus comprises a shutter () between said radiation source () and said vat () for allowing only selected portions of the generated radiation to reach said resin, and a cooling channel () between said radiation source () and said shutter (). The apparatus comprises a blower () configured to force coolant gas through said cooling channel ().