US 12,390,955 B2
Apparatus for additive manufacturing including a batch mixer for cementitious materials
James Lyman Reusch, Salt Lake City, UT (US)
Appl. No. 18/551,750
Filed by James Lyman Reusch, Salt Lake City, UT (US)
PCT Filed Mar. 28, 2022, PCT No. PCT/US2022/022209
§ 371(c)(1), (2) Date Sep. 21, 2023,
PCT Pub. No. WO2022/204602, PCT Pub. Date Sep. 29, 2022.
Prior Publication US 2024/0165850 A1, May 23, 2024
Int. Cl. B28B 1/00 (2006.01); B28C 5/10 (2006.01); B28C 7/04 (2006.01); B28C 7/06 (2006.01); B33Y 40/00 (2020.01); E04G 21/04 (2006.01); B25J 9/02 (2006.01); B25J 19/00 (2006.01); B29C 64/106 (2017.01); B29C 64/321 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/10 (2020.01)
CPC B28B 1/001 (2013.01) [B28C 5/10 (2013.01); B28C 7/0418 (2013.01); B28C 7/06 (2013.01); B33Y 40/00 (2014.12); E04G 21/0418 (2013.01); E04G 21/0463 (2013.01); B25J 9/026 (2013.01); B25J 19/0025 (2013.01); B29C 64/106 (2017.08); B29C 64/321 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/10 (2020.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus for additive manufacturing, comprising:
a supply of dry cement powder having an individually controllable outlet;
a supply of a dry mineral filler having an individually controllable outlet;
a supply of a curing accelerator having an individually controllable outlet;
a supply of water having an individually controllable outlet;
a batch mixer to receive and mix a controlled amount of dry cement powder from the supply of dry cement powder, a controlled amount of dry mineral filler from the supply of dry mineral filler, a controlled amount of curing accelerator from the supply of curing accelerator, and a controlled amount of water from the supply of water, thus forming a batch of cementitious material;
a pump connected to the batch mixer and a hopper to pump the cementitious material, the pump comprising an auger;
a double-walled delivery hose connected to the pump to deliver the cementitious material pumped by the pump from the batch mixer, the delivery hose having an inner hose and an outer hose, the inner hose operable to carry the cementitious material and the outer hose operable to flow a thermal regulation fluid around the inner hose;
a water distribution mixer configured to mix water with dry ingredients, the water distribution mixer connected to an individually-controllable outlet of the water supply; and
a printhead connected to an outlet of the delivery hose, wherein the printhead is positionable in three-dimensional space by a three-dimensional positioning system comprising one of more of a robotic arm, a gantry and a carriage.