US 12,064,921 B2
Forming a sealed fluid flow path
David Chanclon Fernandez, Sant Cugat del Valles (ES); Pablo Antonio Murciego Rodriguez, Sant Cugat del Valles (ES); and Jorge Diosdado Borrego, Sant Cugat del Valles (ES)
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
Appl. No. 17/616,090
Filed by HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
PCT Filed Oct. 15, 2019, PCT No. PCT/US2019/056215
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2021/076101, PCT Pub. Date Apr. 22, 2021.
Prior Publication US 2022/0297378 A1, Sep. 22, 2022
Int. Cl. B29C 64/35 (2017.01); B29C 64/255 (2017.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01)
CPC B29C 64/35 (2017.08) [B29C 64/255 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12)] 15 Claims
OG exemplary drawing
 
1. Apparatus, comprising:
a sealing member for a build unit of a 3D printing system, the build unit comprising a surface which is exposed to residual build material in use, the sealing member adapted to engage with the build unit and form therewith a sealed fluid flow path comprising an inner surface including said surface, a fluid inlet and a fluid outlet, wherein the sealing member operates as a lid that is closed onto the build unit.