US 12,103,233 B2
Apparatus, system and method for an additive manufacturing print head
William MacNeish, St. Petersburg, FL (US); and Erik Gjovik, St. Petersburg, FL (US)
Assigned to JABIL INC.
Filed by JABIL INC., St. Petersburg, FL (US)
Filed on Jun. 23, 2023, as Appl. No. 18/213,317.
Application 18/213,317 is a continuation of application No. 17/479,112, filed on Sep. 20, 2021, granted, now 11,685,116.
Application 17/479,112 is a continuation of application No. 17/176,078, filed on Feb. 15, 2021, granted, now 11,865,778.
Application 17/176,078 is a continuation of application No. 16/902,872, filed on Jun. 16, 2020, granted, now 11,420,385, issued on Aug. 23, 2022.
Application 16/902,872 is a continuation of application No. 16/687,363, filed on Nov. 18, 2019, granted, now 10,919,223, issued on Feb. 16, 2021.
Application 16/687,363 is a continuation of application No. 15/723,856, filed on Oct. 3, 2017, granted, now 10,919,221, issued on Feb. 16, 2021.
Prior Publication US 2023/0330930 A1, Oct. 19, 2023
Int. Cl. B29C 64/209 (2017.01); B29C 64/118 (2017.01); B29C 64/227 (2017.01); B29C 64/386 (2017.01); B29C 48/05 (2019.01); B29C 48/285 (2019.01); B29C 64/106 (2017.01); B29C 64/20 (2017.01); B29C 64/205 (2017.01); B29C 64/307 (2017.01); B29C 64/321 (2017.01); B29C 64/343 (2017.01); B29C 64/393 (2017.01); B29K 101/12 (2006.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/209 (2017.08) [B29C 64/118 (2017.08); B29C 64/227 (2017.08); B29C 64/386 (2017.08); B29C 48/05 (2019.02); B29C 48/2886 (2019.02); B29C 64/106 (2017.08); B29C 64/20 (2017.08); B29C 64/205 (2017.08); B29C 64/307 (2017.08); B29C 64/321 (2017.08); B29C 64/343 (2017.08); B29C 64/393 (2017.08); B29K 2101/12 (2013.01); B33Y 30/00 (2014.12); B33Y 50/00 (2014.12); B33Y 50/02 (2014.12)] 17 Claims
OG exemplary drawing
 
1. A print head used for additive manufacturing using a print filament, comprising:
a nozzle having an interior chamber extending between first and second longitudinal ends thereof and providing a melt zone therein, wherein the print filament is fed into the first longitudinal end of the nozzle, then into the interior chamber where the print filament is heated in the melt zone, and is then extruded from the second longitudinal end of the nozzle;
two proximate hobs suitable to receive and feed therebetween into the first longitudinal end the print filament for the additive manufacturing, each of the two hobs having an engagement length correspondent to a diameter of each hob in a range of 20 mm-40 mm, and each of the two hobs comprising two sets of teeth along the engagement length, the two sets of teeth being offset with respect to each other; and
a motor capable of imparting a rotation to at least one of the two hobs, wherein the extrusion results from the rotation.