US 12,433,973 B2
Additive manufacturing of embedded materials
Adam Feinberg, Pittsburgh, PA (US); and Thomas Hinton, Pittsburgh, PA (US)
Assigned to Carnegie Mellon University, Pittsburgh, PA (US)
Filed by Carnegie Mellon University, Pittsburgh, PA (US)
Filed on May 2, 2023, as Appl. No. 18/142,503.
Application 18/142,503 is a continuation of application No. 16/169,023, filed on Oct. 24, 2018, granted, now 11,672,887.
Application 16/169,023 is a continuation of application No. 14/908,637, granted, now 10,150,258, issued on Dec. 11, 2018, previously published as PCT/US2014/048643, filed on Jul. 29, 2014.
Claims priority of provisional application 61/958,484, filed on Jul. 29, 2013.
Prior Publication US 2024/0108790 A1, Apr. 4, 2024
Int. Cl. B33Y 30/00 (2015.01); A61L 27/04 (2006.01); A61L 27/10 (2006.01); A61L 27/14 (2006.01); A61L 27/18 (2006.01); A61L 27/20 (2006.01); A61L 27/22 (2006.01); A61L 27/24 (2006.01); A61L 27/38 (2006.01); A61L 27/52 (2006.01); A61L 27/54 (2006.01); B29C 64/112 (2017.01); B29C 64/118 (2017.01); B29C 64/40 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29L 31/00 (2006.01)
CPC A61L 27/54 (2013.01) [A61L 27/04 (2013.01); A61L 27/10 (2013.01); A61L 27/14 (2013.01); A61L 27/18 (2013.01); A61L 27/20 (2013.01); A61L 27/22 (2013.01); A61L 27/222 (2013.01); A61L 27/225 (2013.01); A61L 27/227 (2013.01); A61L 27/24 (2013.01); A61L 27/38 (2013.01); A61L 27/52 (2013.01); B29C 64/112 (2017.08); B29C 64/118 (2017.08); B29C 64/40 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B29K 2005/00 (2013.01); B29K 2089/00 (2013.01); B29L 2031/7532 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system that is configured for fabricating a structure, the system comprising:
a structure material that is configured to form the structure; and
a support material comprising a plurality of gel microparticles, wherein the support material is configured to transition from behaving as a fluid to behaving as a solid or semi-solid state at a location where the structure material is deposited in the support material to form the structure, the behavior transition being in response to an application to the support material of a shear stress above a threshold shear stress, the behavior transition being a fluid state behavior above the threshold shear stress and a solid state or semi-solid state behavior at and below the threshold shear stress during the depositing of the structure material in the support material, wherein the structure material is configured to apply the shear stress at the location above the threshold shear stress when the structure material is deposited into the support material.