公开(公告)号：US20210362423A1

公开(公告)日：2021-11-25

申请号：US16607755

申请日：2018-07-31

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

Inventor： Justin M Roman ,  David R. Otis ,  John Geile ,  Luke P. Sosnowski

IPC: B29C64/364 ,  B29C64/314 ,  B29C64/321 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y50/02

Abstract: An example of an apparatus is provided. The apparatus includes a build material transport path to transport a build material with air flow. The apparatus includes a humidifying element to receive the air flow and to add moisture to the air flow. The apparatus includes an inlet to introduce ambient air into the build material transport path to decrease moisture content in the air flow. The apparatus includes a valve to connect the humidifying element and the inlet to the build material transport path. The valve is to adjust an amount of ambient air introduced into the build material transport path. The apparatus includes a sensor to detect the moisture content in the air flow and to generate a signal to indicate the moisture content. The apparatus includes a processor to receive the signal to control the valve to maintain a moisture content in the air flow.

公开(公告)号：US11607849B2

公开(公告)日：2023-03-21

申请号：US17547908

申请日：2021-12-10

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

Inventor： Mike Rode ,  John Geile ,  Pierre J. Kaiser ,  Wesley R. Schalk ,  Arthur H. Barnes

IPC: B29C64/329 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/214 ,  B29C64/218 ,  B29C64/307 ,  B29C64/336 ,  B33Y40/00 ,  B29C64/255 ,  B29C64/295 ,  B33Y40/10

Abstract: A build material dispensing device may include a material spreader to spread an amount of build material along a build platform, and at least one hopper for dispensing the build material. The at least one hopper dispenses a plurality of doses of the build material in front of the progression of the material spreader as the material spreader is moved over the build platform.

公开(公告)号：US11225022B2

公开(公告)日：2022-01-18

申请号：US16608430

申请日：2018-01-25

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

Inventor： Mike Rode ,  John Geile ,  Pierre J. Kaiser ,  Wesley R. Schalk ,  Arthur H. Barnes

IPC: B29C64/329 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/214 ,  B29C64/255 ,  B29C64/295 ,  B29C64/218 ,  B29C64/307 ,  B29C64/336

Abstract: A build material dispensing device may include a material spreader to spread an amount of build material along a build platform, and at least one hopper for dispensing the build material. The at least one hopper dispenses a plurality of doses of the build material in front of the progression of the material spreader as the material spreader is moved over the build platform.

公开(公告)号：US20220134665A1

公开(公告)日：2022-05-05

申请号：US17578153

申请日：2022-01-18

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

Inventor： Brent EWALD ,  John Geile ,  Tristan Dudik ,  Michael Rode

IPC: B29C64/321 ,  B33Y30/00 ,  B33Y40/00 ,  B22F12/52

Abstract: In order to have ensure a proper dosing of a 3D printing system, it is disclosed a feeding mechanism for feeding build material to a surface that comprises: a receptacle to receive build material; and an outlet of the build material having a substantially quadrilateral opening with a first dimension and a second dimension orthogonal to one another; the outlet further comprising a third dimension orthogonal to the first dimension and the second dimension defining the height of the outlet, and the feeding mechanism being to selectively feed build material from to the receptacle through the outlet onto a surface as the feeding mechanism moves along a travel direction over the surface, being such travel direction parallel to the first dimension of the outlet, the feeding mechanism further comprising an actuator to modify the magnitude of at least one of the second dimension or the third dimension outlet.

公开(公告)号：US20220097302A1

公开(公告)日：2022-03-31

申请号：US17547908

申请日：2021-12-10

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

Inventor： Mike Rode ,  John Geile ,  Pierre J. Kaiser ,  Wesley R. Schalk ,  Arthur H. Barnes

IPC: B29C64/329 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/214 ,  B29C64/255 ,  B29C64/295 ,  B29C64/218 ,  B29C64/307 ,  B29C64/336

Abstract: A build material dispensing device may include a material spreader to spread an amount of build material along a build platform, and at least one hopper for dispensing the build material. The at least one hopper dispenses a plurality of doses of the build material in front of the progression of the material spreader as the material spreader is moved over the build platform.

公开(公告)号：US20200346408A1

公开(公告)日：2020-11-05

申请号：US16608430

申请日：2018-01-25

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

Inventor： Mike Rode ,  John Geile ,  Pierre J. Kaiser ,  Wesley R. Schalk ,  Arthur H. Barnes

IPC: B29C64/329 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/218 ,  B29C64/214 ,  B29C64/255 ,  B29C64/295 ,  B33Y10/00

Abstract: A build material dispensing device may include a material spreader to spread an amount of build material along a build platform, and at least one hopper for dispensing the build material. The at least one hopper dispenses a plurality of doses of the build material in front of the progression of the material spreader as the material spreader is moved over the build platform.

公开(公告)号：US11254056B2

公开(公告)日：2022-02-22

申请号：US16076122

申请日：2017-07-25

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

Inventor： Brent Ewald ,  John Geile ,  Tristan Dudik ,  Michael Rode

IPC: B29C64/321 ,  B33Y30/00 ,  B33Y40/00 ,  B22F12/52

Abstract: In order to have ensure a proper dosing of a 3D printing system, it is disclosed a feeding mechanism for feeding build material to a surface that comprises: a receptacle to receive build material; and an outlet of the build material having a substantially quadrilateral opening with a first dimension and a second dimension orthogonal to one another; the outlet further comprising a third dimension orthogonal to the first dimension and the second dimension defining the height of the outlet, and the feeding mechanism being to selectively feed build material from the receptacle through the outlet onto a surface as the feeding mechanism moves along a travel direction over the surface, being such travel direction parallel to the first dimension of the outlet, the feeding mechanism further comprising an actuator to modify the magnitude of at least one of the second dimension or the third dimension outlet.

公开(公告)号：US20210276266A1

公开(公告)日：2021-09-09

申请号：US16608448

申请日：2018-01-29

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

Inventor： Arthur H. Barnes ,  Haseeb Yusef ,  John Geile

IPC: B29C64/393 ,  B29C64/295 ,  B29C64/321 ,  B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

Abstract: Some examples include an additive manufacturing machine including a dose plate to receive build material onto, a heating element to selectively heat the build material dispensed on the dose plate, the build material selectively heated in at least two zones, a sensor to detect a temperature of each of the at least two zones, and a controller to control the heating element based on the temperatures of each of the at least two zones.