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:
Aug. 25, 2020
Filed:
Nov. 11, 2014
Applicants:
Tai Dung Nguyen, Fremont, CA (US);
Tue Nguyen, Fremont, CA (US);
Inventors:
Tai Dung Nguyen, Fremont, CA (US);
Tue Nguyen, Fremont, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B33Y 10/00 (2015.01); B29C 64/10 (2017.01); B29C 64/182 (2017.01); B29C 64/393 (2017.01); B81C 3/00 (2006.01); B29C 67/00 (2017.01);
U.S. Cl.
CPC ...
B29C 67/0081 (2013.01); B29C 64/10 (2017.08); B29C 64/182 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B81C 3/00 (2013.01); B81C 2201/01 (2013.01);
Abstract
Molds including 3D printed components can be used to cast objects. A model of the object can be separated into multiple components, with each component not having non-printable overhang structures, thus allowing the components to be directly printed without support structures. Shell models and shell molds, e.g., molds with hollow interior, can be used for cost effectiveness. The surface of the printed object can be smoothened, for example, by solvent vapor (such as acetone for plastic), by sanding, or by a smooth coating. The object can be combinatorially cast.