US 11,806,931 B2
Bulk ink bags for 3-dimensional printing
Robert Swartz, Highland Park, IL (US); Leonard Wanger, Chicago, IL (US); John Bayldon, Evanston, IL (US); Drew Marschner, Chicago, IL (US); Michael Rohrer, Third Lake, IL (US); Gintaras Vaisnys, Chicago, IL (US); and Giovanni Meier, Madison, CT (US)
Assigned to Impossible Objects, Inc., Northbrook, IL (US)
Filed by Impossible Objects, Inc., Northbrook, IL (US)
Filed on Jan. 23, 2021, as Appl. No. 17/156,540.
Claims priority of provisional application 62/965,083, filed on Jan. 23, 2020.
Prior Publication US 2021/0229355 A1, Jul. 29, 2021
Int. Cl. B29C 64/259 (2017.01); B33Y 40/00 (2020.01); B29C 64/307 (2017.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); B29C 64/386 (2017.01); B22F 12/90 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B22F 12/50 (2021.01)
CPC B29C 64/259 (2017.08) [B22F 12/50 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B22F 12/90 (2021.01); B29C 64/307 (2017.08); B29C 64/386 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/00 (2014.12)] 6 Claims
OG exemplary drawing
 
1. A system to allow fluid bag changing in a composite-based additive manufacturing (CBAM) system without disruption comprising:
a scale configured to measure fluid bag weight;
a hook attached to the scale;
at least one fluid bag having a quick-disconnect, self-sealing nozzle, the fluid bag in fluid communication with one or more ink cartridges;
a gravity fed de-bubbling device in fluid communication with the fluid bag, the de-bubbling device having a sight constructed to determine an amount of air in the system.