公开(公告)号：US20210197474A1

公开(公告)日：2021-07-01

申请号：US16075328

申请日：2017-04-17

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

Inventor： Miguel ALVAREZ ,  Warren Scott MARTIN ,  Joshua SCHMALE

IPC: B29C64/35 ,  B29C64/209 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A three dimensional printing system, the system including: a printhead; and a removable tray comprising a reservoir, the tray located in a print bed of the three dimensional printing system such that liquid purged from the printhead is deposited in the reservoir, wherein prior to the system purging liquid from the printhead, the system confirms that the tray is in place using a sensor.

公开(公告)号：US20210197475A1

公开(公告)日：2021-07-01

申请号：US16075681

申请日：2017-07-06

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

Inventor： Robert Lawrence WINBURNE ,  Joshua SCHMALE ,  Tait A. REGNIER

IPC: B29C64/35 ,  B29C64/165 ,  B29C64/245 ,  B29C64/357 ,  B33Y30/00 ,  B33Y40/00

Abstract: In one example in accordance with the present disclosure, an additive manufacturing build unit is described. The additive manufacturing build unit includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material. A non-vibrating frame of the build unit supports the vibrating bed. The build unit also includes a bed-frame interface to: couple the vibrating bed to the non-vibrating bed frame, and isolate vibrations to the vibrating bed. A flexible seal of the build unit is disposed between the vibrating bed and non-vibrating frame. The flexible seal prevents build material from contaminating an additive manufacturing system in which the additive manufacturing build unit is disposed and allows relative motion between the vibrating bed and the non-vibrating frame.

公开(公告)号：US20210323232A1

公开(公告)日：2021-10-21

申请号：US16075625

申请日：2017-07-19

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

Inventor： Joshua SCHMALE ,  Robert Lawrence WINBURNE ,  Tait A. REGNIER ,  Michael DUDA ,  Justin M. ROMAN

IPC: B29C64/35 ,  B29C64/245 ,  B29C64/165 ,  B29C64/209 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: In one example in accordance with the present disclosure, an additive manufacturing platform is described. The additive manufacturing platform includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material and operates in at least two extraction modes during a build material extraction period. The additive manufacturing platform also includes a non-vibrating frame to support the vibrating bed.

公开(公告)号：US20210206094A1

公开(公告)日：2021-07-08

申请号：US16075684

申请日：2017-07-06

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

Inventor： Joshua SCHMALE ,  Robert Lawrence WINBURNE ,  Randall WEST ,  Tait A. REGNIER

IPC: B29C64/35 ,  B33Y30/00 ,  B33Y40/20 ,  B29C64/245

Abstract: A three-dimensional printing system may include a build platform, the build platform including at least one hole defined through the build platform, a diffuser plate placed below the at least one hole to maintain an amount of build material between a lower surface of the build platform and an upper surface of the diffuser plate, and a flow channel defined around the diffuser plate and sealing the diffuser plate from atmosphere.

公开(公告)号：US20210206071A1

公开(公告)日：2021-07-08

申请号：US16075597

申请日：2017-07-26

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

Inventor： Tait A. REGNIER ,  Mark GROENENBOOM ,  Robert Lawrence WINBURNE ,  Randall WEST ,  Joshua SCHMALE

IPC: B29C64/245 ,  B29C64/255

Abstract: A build unit may include a build chamber, at least two datum apertures defined in at least two opposite sides of the build unit, and at least two alignment posts that seat within the datum apertures to couple the lift system to the build chamber, and to align the lift system in a first coordinate direction relative to the build chamber.

公开(公告)号：US20210206070A1

公开(公告)日：2021-07-08

申请号：US16075488

申请日：2017-06-27

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

Inventor： Joshua SCHMALE ,  Matt G. DRIGGERS

IPC: B29C64/245 ,  F16J15/3208

Abstract: An example two-part seal for a powder-based 3-D printer includes a flexible film wiper attached to a rectangular platform and disposed on linear segments of a perimeter of the platform. The flexible film wiper extends beyond the perimeter of the platform to provide a sliding seal against corresponding walls of a rectangular enclosure of the platform. The two-part seal also includes a deformable member disposed upon the flexible film wiper that extends beyond the perimeter of the platform to apply sealing pressure to the flexible film wiper.

公开(公告)号：US20190193332A1

公开(公告)日：2019-06-27

申请号：US16077746

申请日：2017-07-28

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

Inventor： Joshua SCHMALE

IPC: B29C64/35 ,  B33Y30/00 ,  B29C64/245 ,  B29C64/386 ,  B33Y50/00 ,  B33Y40/00 ,  B29C64/357 ,  B29C64/153

CPC classification number: B29C64/35 ,  B29C64/153 ,  B29C64/245 ,  B29C64/357 ,  B29C64/386 ,  B29K2055/02 ,  B29K2077/00 ,  B29K2509/08 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/00

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to recycle 3D build material including a 3D printer having a build platform, a vibration generator to alternately apply a first vibration mode to the build platform to move build material on the build platform in a first direction, and to apply a second vibration mode to the build platform to move the build material in a second direction and an air handler to generate an airflow to remove the build material from the build platform.