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:
Jun. 03, 2025

Filed:

May. 04, 2022
Applicant:

Nexa3d Inc., Ventura, CA (US);

Inventors:

William Jack MacNeish, Iii, Santa Ana, CA (US);

Charles Brandon Sweeney, Pflugerville, TX (US);

Alex Stockton, Austin, TX (US);

Assignee:

Nexa3D Inc., Ventura, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/209 (2017.01); B29C 64/118 (2017.01); B29C 64/295 (2017.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 64/209 (2017.08); B29C 64/118 (2017.08); B29C 64/295 (2017.08); B29C 64/393 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract

A nozzle assembly for a printer head of a 3D printer includes at least two conduit portions, with each conduit portion including an interfacing surface having a recessed channel that is non-linear. The recessed channels cooperate with one another to define a serpentine path, in response to the interfacing surfaces of the associated conduit portions being engaged to one another. The serpentine path extends from a feed opening to a discharge opening for moving a filament therethrough. The nozzle assembly further includes a heating element connected to the conduit portions for transferring heat to the filament disposed in the serpentine path to fully melt the filament without caramelizing or burning the filament.


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