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1. (WO2017194135) BUILD MATERIAL CONTAINER

Pub. No.:    WO/2017/194135    International Application No.:    PCT/EP2016/060748
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Fri May 13 01:59:59 CEST 2016
IPC: B29C 67/00
B29C 31/02
B65G 53/04
B65D 88/54
B65D 90/34
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors: CHANCLON FERNANDEZ, Ismael
ALONSO BECERRO, Xavier
JONES POPPESCOU, Ernesto Alejandro
Title: BUILD MATERIAL CONTAINER
Abstract:
An additive-manufacturing build-material container (201) comprises a reservoir to hold build material, an outlet opening in a top portion of the reservoir, an outlet tube structure including a longitudinal collection unit to collect build material from the bottom and guide the build material to the outlet opening at the top, upon application of a suction force at the other end thereof, and to guide the collected build material to the outlet opening at the top; and a vent opening in a top portion of the reservoir to admit gas from outside the reservoir into the reservoir to follow a gas flow path through the vent opening, through the reservoir and into said one end of the longitudinal collection tube; wherein on said gas flow path there is at least one turbulent-gas-flow-generation feature (237) to generate turbulent gas flow in a region that is within the reservoir and outside the longitudinal collection tube.