公开(公告)号：US11292195B2

公开(公告)日：2022-04-05

申请号：US16089065

申请日：2016-09-28

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

Inventor： Ferran Esquius ,  Juan Manuel Valero Navazo ,  Ignacio Alejandre ,  Esteve Comas

IPC: B29C64/295 ,  B22F3/105 ,  B29C64/153 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/205 ,  B22F10/20 ,  B22F10/30

Abstract: In an example, a method includes acquiring a thermal image of a reflector within an additive manufacturing apparatus through a screen. An energy profile of the thermal image of the reflector may be determined and, based on the energy profile, an operational characteristic of the screen may be determined.

公开(公告)号：US20180104896A1

公开(公告)日：2018-04-19

申请号：US15562256

申请日：2015-07-02

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

Inventor： Miguel Angel Lopez ,  Alejandro Manuel De Pena ,  Ignacio Alejandre

IPC: B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/02

Abstract: An airborne particle detector comprises a light source to emit a light beam through a target space adjacent to a heat source of a 3D printer, a detector to detect an amount of light of the light beam having passed through the target space, and a detection engine in communication with the light source and the detector to detect airborne particles in the target space using an amount of light detected by the detector.

公开(公告)号：US10773457B2

公开(公告)日：2020-09-15

申请号：US15562256

申请日：2015-07-02

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

Inventor： Miguel Angel Lopez ,  Alejandro Manuel De Pena ,  Ignacio Alejandre

IPC: B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/30 ,  B29C64/393 ,  B29C64/268 ,  H04N5/232 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F3/105 ,  B22F3/00

Abstract: An airborne particle detector comprises a light source to emit a light beam through a target space adjacent to a heat source of a 3D printer, a detector to detect an amount of light of the light beam having passed through the target space, and a detection engine in communication with the light source and the detector to detect airborne particles in the target space using an amount of light detected by the detector.

公开(公告)号：US20190118421A1

公开(公告)日：2019-04-25

申请号：US16094734

申请日：2016-05-12

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

Inventor： Emilio Carlos Cano ,  Ignacio Alejandre ,  Esteve Comas

IPC: B29C35/16 ,  B29C64/165 ,  B29C64/295

Abstract: In some examples, a lamp assembly for a printing system includes a heating lamp to generate heat in an active region of the printing system, and a housing comprising an inner chamber containing the heating lamp, an airflow inlet to receive a cooling airflow for provision into the inner chamber of the housing to cool the heating lamp, and a plurality of exhaust holes through which heated exhaust air is to exit from the inner chamber of the housing, the plurality of exhaust holes formed in a wall of the housing. The lamp assembly further includes an attachment element to attach the lamp assembly to a carriage of the printing system.

公开(公告)号：US11731363B2

公开(公告)日：2023-08-22

申请号：US16071197

申请日：2016-05-12

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

Inventor： Emilio Carlos Cano ,  Ignacio Alejandre ,  Esteve Comas

IPC: B29C64/364 ,  B29C64/393 ,  B29C64/25 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/364 ,  B29C64/25 ,  B29C64/393 ,  B33Y40/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In one example, an additive manufacturing system. An unsealed air supply enclosure for clean air is maintained at a first pressure above an ambient air pressure to inhibit unfiltered ambient air from leaking into the enclosure. An unsealed processing chamber is maintained at a second pressure below the ambient air pressure to inhibit processing chamber air from leaking out of the processing chamber. An air pathway is disposed between the air supply enclosure and the processing chamber to provide clean air from the air supply enclosure to the processing chamber.

公开(公告)号：US20190061240A1

公开(公告)日：2019-02-28

申请号：US16070454

申请日：2016-05-12

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

Inventor： Ignacio Alejandre ,  Sergi Culubret ,  Salvador Sanchez Ribes ,  Bernardo A. Gutierrez

IPC: B29C64/20 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393

Abstract: In some examples, a printing system includes a printhead that is relatively moveable with respect to a print platform, and an airflow generator assembly to generate a first cooling airflow towards the printhead responsive to the printhead being at in a first inactive region on a first side of the print platform, and generate a second cooling airflow towards the printhead responsive to the printhead being in a second inactive region on a second, different side of the print platform.

公开(公告)号：US11266937B2

公开(公告)日：2022-03-08

申请号：US16087702

申请日：2017-03-28

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

Inventor： Ignacio Alejandre ,  Esteve Comas ,  Sergi Culubret

IPC: B01D50/00 ,  B01D45/12 ,  B04C1/00 ,  B04C11/00

Abstract: In an example, an air filtration apparatus includes a cyclonic particle separation chamber having a first inlet to draw air from a first region, second inlet to draw air from a second region, and an exhaust port. The air filtration apparatus may further include a pressure sensor to sense a pressure of the first region, and a cyclonic air flow controller. The cyclonic air flow controller may control an air inflow received via the second inlet in response to an output from the pressure sensor to maintain a total air flow rate via the exhaust port.

公开(公告)号：US20210221058A1

公开(公告)日：2021-07-22

申请号：US16095781

申请日：2016-07-01

Applicant: Emilio Carlos CANO ,  Ignacio ALEJANDRE ,  Oriol BORRELL CARBONELL ,  Pamela Carolina ZALDUMBIDE SALAVERRIA ,  Oriol ROIG ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Emilio Carlos Cano ,  Ignacio Alejandre ,  Oriol Borrell Carbonell ,  Pamela Carolina Zaldumbide Salaverria ,  Oriol Roig

IPC: B29C64/25 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00

Abstract: Certain examples described herein relate to printer (110, 210) cooling systems of three-dimensional (3D) printers. In an example of a printer (110, 210) cooling system of a three-dimensional (3D) printer (110, 210), a shared air flow volume (120, 220) is for cooling a plurality of internal printer components (130, 140, 230, 240), and a single air inlet (150, 245) delivers ambient air (160) from outside the three-dimensional (3D) printer (110, 210) to the shared air flow volume (120, 220) In certain cases, the shared air flow volume (120, 220) comprises a first air flow conduit (135, 270) for cooling a first internal printer component (130, 230) and a second air flow conduit (145, 275) for cooling a second internal printer component (140, 240). In certain examples, the first and the second air flow conduits (135, 270) are arranged at least partially in parallel.

公开(公告)号：US20210170687A1

公开(公告)日：2021-06-10

申请号：US16071197

申请日：2016-05-12

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

Inventor： Emilio Carlos Cano ,  Ignacio Alejandre ,  Esteve Comas

IPC: B29C64/364 ,  B29C64/393 ,  B29C64/25

Abstract: In one example, an additive manufacturing system. An unsealed air supply enclosure for clean air is maintained at a first pressure above an ambient air pressure to inhibit unfiltered ambient air from leaking into the enclosure. An unsealed processing chamber is maintained at a second pressure below the ambient air pressure to inhibit processing chamber air from leaking out of the processing chamber. An air pathway is disposed between the air supply enclosure and the processing chamber to provide clean air from the air supply enclosure to the processing chamber.

公开(公告)号：US20190160745A1

公开(公告)日：2019-05-30

申请号：US16092375

申请日：2016-05-12

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

Inventor： Ignacio Alejandre ,  Emilio Carlos Cano ,  Sergi Culubret

IPC: B29C64/209 ,  B29C64/393 ,  B29C35/16 ,  B29C64/165 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: In some examples, a carriage for a printing system includes a printhead, a conduit to carry a cooling airflow to the printhead, a return chamber to receive a heated exhaust airflow produced from heating of the cooling airflow by the printhead, and a seal between the printhead and the return chamber to prevent the heated airflow from flowing to a location below the printhead.