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公开(公告)号:US20220143924A1
公开(公告)日:2022-05-12
申请号:US17416174
申请日:2019-07-30
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/393 , B33Y50/02 , G01G17/06 , G01G19/52 , B33Y30/00
Abstract: Apparatus is described comprising a chamber (101), which further comprises an interior (130), a sensor (102), a fluid dispenser (103) and a controller (104). A 3D printed object can be disposed in the chamber (101). The sensor (102) is arranged to weigh the chamber (101) or the whole contents of the chamber (101). The fluid dispenser (103) is arranged to dispense fluid into the interior (130) of the chamber (101) and the controller (104) can determine the weight of the 3D printed object and control the fluid dispenser (103). A system and a non-transitory machine-readable storage medium encoded with instructions executable by a processor.
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公开(公告)号:US20220227058A1
公开(公告)日:2022-07-21
申请号:US17609271
申请日:2019-10-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/393 , F25B21/04 , G05D23/19 , B29C64/295 , B33Y10/00 , B33Y30/00 , B33Y50/02
Abstract: A system (2) is provided with a temperature controlled chamber (4) having a wall (6) extending about a space (8) to receive a three-dimensional printed job. A plurality of temperature control elements (10,12) are mounted to the wall, wherein each of the temperature control elements is operable separately from each other of the temperature control elements. A controller (14) operates the plurality of temperature control elements, each of which is selectively operable by the controller in dependence upon parameters of a three-dimensional printed job to be temperature controlled within the chamber.
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公开(公告)号:US20220134656A1
公开(公告)日:2022-05-05
申请号:US17416369
申请日:2019-07-23
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/232 , B33Y40/00 , B33Y30/00 , B29C64/245 , B33Y10/00
Abstract: A 3D printer comprises a printing machine to accommodate a build unit in a print position and a conveyor to move the build unit into the print position and out of the print position. The conveyor is to move the build unit vertically downward into the print position and to move the build unit vertically downward out of the print position. The 3D printer is to move a build platform of the built unit vertically downward relative to the a frame of the build unit as successive layers of build material are formed on the build platform and are selectively processed while the build unit is in the print position.
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公开(公告)号:US20210053294A1
公开(公告)日:2021-02-25
申请号:US17051423
申请日:2018-09-26
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Miguel Vega Velasco , Alejandro Torres Pinero , Pedro Garcia Garces
IPC: B29C64/393 , B29C64/314 , B33Y40/00 , B33Y50/02
Abstract: An example of an apparatus is disclosed. The apparatus comprises a controller to obtain a desired quality level for an object to be printed based on an input. The controller is also to determine a ratio of a first build material and a second build material based on the desired quality level. The first build material is a higher quality build material than the second build material. The controller is further to prepare a mix of build material of the determined ratio to be used during generation of the object.
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公开(公告)号:US20220379561A1
公开(公告)日:2022-12-01
申请号:US17755122
申请日:2020-03-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/35 , B29C64/153 , B22F10/20
Abstract: The invention relates to a decake apparatus. The decake apparatus has a chamber with a base to support a build cake. The build cake includes a build object and non-solidified build material. The apparatus includes a distributor from which to force a fluidisation medium into a lower portion of a build cake supported on the base to fluidise non-solidified build material around the build object so that the build object sinks through the fluidised non-solidified build material towards the base. The also includes a material outlet through which non-solidified build material can be removed from the chamber.
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公开(公告)号:US20220152930A1
公开(公告)日:2022-05-19
申请号:US17416147
申请日:2019-08-05
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/35 , B33Y50/02 , B33Y30/00 , B33Y40/00 , B29C64/218 , B29C64/393 , B29C64/165 , B28B1/00 , B22F12/63
Abstract: A spreading system for an additive manufacturing machine. The system has a roller rotatable about a rotary axis and having an exterior cylindrical surface to spread build material. A sensor senses material attached to the exterior cylindrical surface of the roller. A cleaning member abuts the exterior cylindrical surface of the roller and removes attached material therefrom. A controller rotates the roller whilst in abutment with the cleaning member in response to the sensor sensing material attached to the exterior cylindrical surface of the roller.
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公开(公告)号:US20210187852A1
公开(公告)日:2021-06-24
申请号:US17272892
申请日:2019-04-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
IPC: B29C64/30 , B33Y40/20 , B29C64/386 , 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.
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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.
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.
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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.
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.
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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.
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