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.

Date of Patent:
Nov. 05, 2019

Filed:

Sep. 10, 2018
Applicant:

President and Fellows of Harvard College, Cambridge, MA (US);

Inventors:

Jennifer A. Lewis, Cambridge, MA (US);

Thomas J. Ober, Cambridge, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/21 (2006.01); B41J 2/175 (2006.01); B01F 15/00 (2006.01); B01F 13/00 (2006.01); B01F 7/06 (2006.01); B01F 3/12 (2006.01); B01F 3/08 (2006.01); B28C 5/02 (2006.01); B05B 1/30 (2006.01); B01F 7/24 (2006.01); B28C 5/12 (2006.01); B33Y 30/00 (2015.01); B29C 64/209 (2017.01);
U.S. Cl.
CPC ...
B01F 15/00389 (2013.01); B01F 3/0861 (2013.01); B01F 3/0865 (2013.01); B01F 3/1221 (2013.01); B01F 7/06 (2013.01); B01F 7/248 (2013.01); B01F 13/0059 (2013.01); B01F 13/0064 (2013.01); B01F 15/00253 (2013.01); B05B 1/30 (2013.01); B28C 5/026 (2013.01); B28C 5/1292 (2013.01); B29C 64/209 (2017.08); B33Y 30/00 (2014.12); B41J 2/175 (2013.01); B41J 2/211 (2013.01);
Abstract

A microfluidic printing nozzle for 3D printing may include a mixing chamber, a first inlet for connecting with a first ink source, the first inlet located at a first end of the mixing chamber, and a second inlet for connecting with a second ink source, the second inlet located at the first end of the mixing chamber. An outlet may be located at a second end of the mixing chamber, and a generally cylindrical impeller may be rotatably disposed in the mixing chamber between the first end and the second end. The cylindrical impeller may include an outer surface, and the outer surface of the impeller includes a groove, a protrusion, or both, to facilitate mixing of fluidic inks flowing from the first end to the second end of the mixing chamber.


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