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公开(公告)号：WO2022086564A1
公开(公告)日：2022-04-28
申请号：PCT/US2020/057173
申请日：2020-10-23
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： MONROE, Michael Gabriel , SOLE PONS, Macia , SWIER, Kevin Edward
IPC: B29C64/205 , B29C64/321 , B33Y30/00 , B33Y40/00
Abstract: In one example, a device for dispensing build material powder in an additive manufacturing machine includes a first dispenser including a first scoop rotatable in a first direction to scoop build material powder into the first dispenser, a second dispenser including a second scoop rotatable in a second direction opposite the first direction to scoop build material powder into the second dispenser, and a leveler between the first dispenser and the second dispenser.
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公开(公告)号：WO2017074314A1
公开(公告)日：2017-05-04
申请号：PCT/US2015/057585
申请日：2015-10-27
Applicant: HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In one example, a liquid delivery and gas removal system for a printhead. The system includes a pump to provide a liquid at a positive pressure. The system also includes a filter fluidically coupled to the pump to receive the pressurized liquid at an upstream side, at a first pressure push the liquid through the filter to a downstream side, and at a higher second pressure push gas bubbles in the liquid through the filter to the downstream side. The system further includes a vent having a gas-permeable membrane. A wet side of the membrane is fluidically coupled to the downstream side and to a printhead. A vacuum is applied to a dry side of the membrane.
Abstract translation: 在一个示例中，用于打印头的液体输送和气体去除系统。 该系统包括一个提供正压液体的泵。 该系统还包括流体地连接到泵的过滤器，以在上游侧接收加压液体，在第一压力下将液体通过过滤器推到下游侧，并且在更高的第二压力下，通过液体推动液体中的气泡 过滤到下游侧。 该系统还包括具有透气膜的通气孔。 膜的湿侧与下游侧和打印头流体耦合。 真空施加在膜的干燥侧。
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公开(公告)号：EP3368324A1
公开(公告)日：2018-09-05
申请号：EP15907422.8
申请日：2015-10-27
Applicant: Hewlett-Packard Development Company, L.P.
Abstract: In one example, a liquid delivery and gas removal system for a printhead. The system includes a pump to provide a liquid at a positive pressure. The system also includes a filter fluidically coupled to the pump to receive the pressurized liquid at an upstream side, at a first pressure push the liquid through the filter to a downstream side, and at a higher second pressure push gas bubbles in the liquid through the filter to the downstream side. The system further includes a vent having a gas-permeable membrane. A wet side of the membrane is fluidically coupled to the downstream side and to a printhead. A vacuum is applied to a dry side of the membrane.
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公开(公告)号：EP3368324B1
公开(公告)日：2020-05-06
申请号：EP15907422.8
申请日：2015-10-27
Applicant: Hewlett-Packard Development Company, L.P.
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