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:
May. 11, 2021
Filed:
Aug. 23, 2018
Applicant:
The Regents of the University of California, Oakland, CA (US);
Inventor:
Lawrence Kulinsky, Irvine, CA (US);
Assignee:
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 41/02 (2006.01); B29C 64/35 (2017.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B33Y 70/00 (2020.01); B22F 3/105 (2006.01); B29C 64/153 (2017.01); B29C 64/165 (2017.01); B33Y 40/00 (2020.01); B23K 26/342 (2014.01); B28B 1/00 (2006.01); B29C 64/188 (2017.01); B32B 5/30 (2006.01); B32B 5/32 (2006.01); B29C 64/357 (2017.01); B22F 3/11 (2006.01); B29L 31/60 (2006.01); B29K 27/06 (2006.01); B29L 31/00 (2006.01); B29K 25/00 (2006.01); B29K 23/00 (2006.01); B29K 9/06 (2006.01); B29K 69/00 (2006.01); B29K 77/00 (2006.01);
U.S. Cl.
CPC ...
B29C 64/35 (2017.08); B22F 3/1055 (2013.01); B23K 26/342 (2015.10); B28B 1/001 (2013.01); B29C 64/153 (2017.08); B29C 64/165 (2017.08); B29C 64/188 (2017.08); B29C 64/357 (2017.08); B32B 5/30 (2013.01); B32B 5/32 (2013.01); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B22F 2003/1059 (2013.01); B22F 2003/1106 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); B29K 2009/06 (2013.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2025/06 (2013.01); B29K 2027/06 (2013.01); B29K 2069/00 (2013.01); B29K 2077/00 (2013.01); B29L 2031/608 (2013.01); B29L 2031/721 (2013.01);
Abstract
A method for the additive manufacturing of a closed-cell porous matrix is described herein. A powder-bed, additive manufacturing process is used to create a piece with partially-closed cavities filled with unfused powder. Vacuum, negative pressure, positive pressure, or solvent is used to evacuate the powder from the cavities. Finally, a fresh layer of powder is used to cover the opening of the cavity and the powder is fused on top to close the opening.