US 11,745,429 B2
Humidification in a build material recovery system
Justin M. Roman, Vancouver, WA (US); and Luke P. Sosnowski, Vancouver, WA (US)
Appl. No. 16/607,545
Filed by HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
PCT Filed Apr. 25, 2018, PCT No. PCT/US2018/029362
§ 371(c)(1), (2) Date Oct. 23, 2019,
PCT Pub. No. WO2019/209288, PCT Pub. Date Oct. 31, 2019.
Prior Publication US 2021/0362422 A1, Nov. 25, 2021
Int. Cl. B29C 64/357 (2017.01); B29C 64/314 (2017.01); B33Y 40/10 (2020.01); B29C 64/255 (2017.01); B33Y 40/00 (2020.01)
CPC B29C 64/357 (2017.08) [B29C 64/255 (2017.08); B29C 64/314 (2017.08); B33Y 40/00 (2014.12); B33Y 40/10 (2020.01)] 5 Claims
OG exemplary drawing
 
1. A build material recovery system for additive manufacturing, the system consisting of:
a receiving station to receive a portable container containing a build material;
a separator to remove build material from a stream of air;
a first conduit to carry build material in the stream of air from the receiving station to the separator;
a source of negative air pressure to pull the stream of air with the build material through the first conduit from the receiving station to the separator;
a humidifier to add moisture to the stream of air;
a second conduit to carry build material from the separator to the receiving station; and
optionally, the portable container to contain the build material for additive manufacturing.