公开(公告)号：US20210354391A1

公开(公告)日：2021-11-18

申请号：US16607602

申请日：2018-07-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： David Echevarria Lopez ,  Alejandro Torres Pinero ,  Francesc Salas Roura

IPC: B29C64/364 ,  B29C64/295 ,  B29C64/393 ,  B29C64/165 ,  B33Y40/10 ,  B29C64/264

Abstract: Examples relate to a 3D printing system comprising a connection to a 3D printing chamber; an energy source to apply energy to a 3D build material and an energy source chamber separate from the 3D printing chamber. The energy source chamber contains the energy source. The 3D printing system comprises an air valve system, the air valve system comprising a first valve element selectively connecting the energy source chamber and the connection to the 3D printing chamber and a second valve element selectively connecting an external air input and the connection to the 3D printing chamber. The 3D printing system also comprises a first sensor measuring a temperature representative of a temperature in the 3D printing chamber and an air valve controller connected to the air valve system to regulate the temperature in the 3D printing chamber in function of data provided by the sensor.

公开(公告)号：US12280546B2

公开(公告)日：2025-04-22

申请号：US17272892

申请日：2019-04-22

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Martinez Gonzalez ,  Alejandro Torres Pinero ,  Xavier Gasso Puchal

IPC: B29C64/30 ,  B29C64/386 ,  B33Y40/20 ,  B33Y50/00

Abstract: Apparatus is described comprising a hermetically sealable treatment chamber, a pump and a disperser. The treatment chamber comprises an interior into which an article to be treated can be disposed. The pump is in fluidic communication with the interior of the treatment chamber to form a closed loop about which a dispersed treatment agent can circulate. The disperser is disposed within the closed loop and is arranged to disperse a treatment agent into the interior of the treatment chamber.

公开(公告)号：US12059844B2

公开(公告)日：2024-08-13

申请号：US17414090

申请日：2019-08-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Eduard Galdeano Castillo ,  Guillermo Moliner Clemente ,  Alejandro Torres Pinero

IPC: B29C64/386 ,  B29C64/364 ,  B33Y40/00 ,  B33Y50/00 ,  G05D16/20

CPC classification number: B29C64/386 ,  B29C64/364 ,  B33Y40/00 ,  B33Y50/00 ,  G05D16/2013

Abstract: An apparatus for regulating pressure in a three-dimensional printer comprises a controller and a connector. The controller is configured to receive a value of a measured pressure within the three-dimensional printer. The connector is connectable between a gas outlet of the printer and an inlet of an external gas extraction system. The controller is configured to compare the received value of measured pressure with a predetermined value. If the received value differs from the predetermined value, the controller is configured to permit ambient air to flow into the external extraction system.

公开(公告)号：US20220176634A1

公开(公告)日：2022-06-09

申请号：US17414090

申请日：2019-08-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Eduard Galdeano Castillo ,  Guillermo Moliner Clemente ,  Alejandro Torres Pinero

IPC: B29C64/386 ,  B33Y40/00 ,  B33Y50/00 ,  B29C64/364 ,  G05D16/20

Abstract: An apparatus for regulating pressure in a three-dimensional printer comprises a controller and a connector. The controller is configured to receive a value of a measured pressure within the three-dimensional printer. The connector is connectable between a gas outlet of the printer and an inlet of an external gas extraction system. The controller is configured to compare the received value of measured pressure with a predetermined value. If the received value differs from the predetermined value, the controller is configured to permit ambient air to flow into the external extraction system.

公开(公告)号：US20210354371A1

公开(公告)日：2021-11-18

申请号：US16607770

申请日：2018-06-05

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Miguel Vega Velasco ,  Pedro Garcia Garces ,  Alejandro Torres Pinero

IPC: B29C64/153 ,  B29C64/255 ,  B29C64/314 ,  B29C64/336 ,  B29C64/357 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

Abstract: Certain examples relate to a storage tank loading system for loading powdered build material to a storage tank and generating a quality indicator. In these examples, the quality indicator may be generated by comparing a measured color with at least one predetermined threshold value, in these examples, the color of powdered build material is determined by a color sensor.