US 11,673,325 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., St. Petersburg, FL (US)
Filed by JABIL INC., St. Petersburg, FL (US)
Filed on Sep. 20, 2021, as Appl. No. 17/479,335.
Application 17/479,335 is a continuation of application No. 17/479,112, filed on Sep. 20, 2021.
Application 17/479,112 is a continuation of application No. 17/176,078, filed on Feb. 15, 2021.
Application 17/176,078 is a continuation of application No. 16/902,872, filed on Jun. 16, 2020, granted, now 11,420,385.
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 2022/0001610 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 64/209 (2017.01); B29C 64/386 (2017.01); B29C 64/118 (2017.01); B29C 64/227 (2017.01); B33Y 30/00 (2015.01); B29K 101/12 (2006.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01); B29C 48/285 (2019.01); B29C 64/321 (2017.01); B29C 64/20 (2017.01); B29C 64/205 (2017.01); B29C 64/106 (2017.01); B29C 64/307 (2017.01); B29C 64/343 (2017.01); B29C 64/393 (2017.01); B29C 48/05 (2019.01)
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)] 19 Claims
OG exemplary drawing
 
1. A print head used for additive manufacturing with 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, into the interior chamber, is heated in the melt zone, and is 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 comprising two opposing halves, wherein each of the respective hob's two halves comprises teeth that are offset with respect to the teeth of the opposing hob half; and
a motor capable of imparting a rotation to at least one of the two hobs, wherein the extrusion results from the rotation.