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:
Jan. 24, 2023
Filed:
May. 13, 2020
Applicant:
Drexel University, Philadelphia, PA (US);
Inventors:
Gongyao Zhou, Wilmington, DE (US);
Dajing Gao, Xi'an Shaanxi, CN;
Assignee:
Drexel University, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B41J 2/06 (2006.01); B29C 64/295 (2017.01); B29C 64/209 (2017.01); B29C 64/118 (2017.01); B41J 2/095 (2006.01); B29C 64/364 (2017.01);
U.S. Cl.
CPC ...
B29C 64/209 (2017.08); B29C 64/118 (2017.08); B29C 64/295 (2017.08); B41J 2/06 (2013.01); B41J 2/095 (2013.01); B29C 64/364 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12);
Abstract
A system and method for three-dimensionally printing high viscosity materials using electrohydrodynamics is provided. The system uses a relatively low voltage electric field to draw high viscosity polymers (not in solution) from a nozzle to form three-dimensional objects with lines less than 10 microns in width. Pressurized gas at the nozzle outlet can be used to print large size/dimension parts, instead of or in addition to the electric field to draw the polymers from the nozzle.