US 11,904,528 B2
Three-dimensional printing of free-radical polymerizable composites with continuous fiber reinforcement for building components and buildings
Vasily Korshikov, Moscow (RU); Anna Ivanova, Moscow (RU); Egor Yakovlev, Moscow (RU); Maxim Bobryshev, Moscow (RU); Vasiliy Chekhotsiy, Moscow (RU); Sergei Naumov, Moscow (RU); Alexey Dubov, San Mateo, CA (US); Dmitry Starodubtsev, Moscow (RU); Evald Lepp, Moscow (RU); and Stanislav Gudkov, Moscow (RU)
Assigned to Mighty Buildings, Inc., Oakland, CA (US)
Filed by Mighty Buildings, Inc., San Francisco, CA (US)
Filed on Feb. 23, 2021, as Appl. No. 17/183,335.
Prior Publication US 2022/0266516 A1, Aug. 25, 2022
Int. Cl. B29C 64/336 (2017.01); B29C 64/209 (2017.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B29C 64/118 (2017.01); B33Y 10/00 (2015.01); B29C 64/165 (2017.01)
CPC B29C 64/118 (2017.08) [B29C 64/165 (2017.08); B29C 64/336 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12)] 22 Claims
OG exemplary drawing
 
1. A three-dimensional (“3D”) printing apparatus, comprising:
a base composite material channel configured to pass a base composite material through the 3D printing apparatus, wherein the 3D printing apparatus is configured to 3D print the base composite material as a standalone 3D printing material;
a fiber strand channel configured to pass a fiber strand through the 3D printing apparatus, wherein the fiber strand is separate from the base composite material, and wherein the fiber strand channel meets the base composite material channel at a first location within the 3D printing apparatus;
an impregnation material channel configured to pass an impregnation material to impregnate the fiber strand while the fiber strand is within the 3D printing apparatus, wherein the fiber strand channel meets the impregnation material channel at a second location within the 3D printing apparatus that is before the first location; and
a fiber feeding component located along the fiber strand channel proximate the first location and configured to feed the fiber strand through the fiber strand channel, wherein the fiber feeding component facilitates impregnating the fiber strand with the impregnation material at the second location within the 3D printing apparatus to form an impregnated fiber strand and then facilitates combining the impregnated fiber strand with the base composite material at the first location within the 3D printing apparatus to form a layer of a 3D printed building component with the impregnated fiber strand located within the base composite material, and wherein the 3D printing apparatus is also configured to 3D print the base composite material and the impregnated fiber strand as a combined 3D printing material.