公开(公告)号：US11822995B2

公开(公告)日：2023-11-21

申请号：US17414789

申请日：2019-04-12

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

Inventor： M. Anthony Lewis ,  William J. Allen ,  Douglas Pederson ,  Jarrid Wittkopf ,  Kristopher J. Erickson ,  Robert Ionescu

IPC: G06K7/10 ,  G06K19/067

CPC classification number: G06K7/10009 ,  G06K19/0672

Abstract: In one example in accordance with the present disclosure, a system is described. The system includes at least one directional antenna to 1) emit energy waves towards a mass in which an object is disposed and 2) receive reflected signals from a resonator disposed on the object as the mass is moved relative to the directional antenna. The system also includes a controller to, based on received reflected signals, determine a pose of the object within the mass.

公开(公告)号：US20210187840A1

公开(公告)日：2021-06-24

申请号：US17045534

申请日：2018-09-14

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

Inventor： Vladek Kasperchik ,  David A. Champion ,  Douglas Pederson

IPC: B29C64/165

Abstract: A three-dimensional (3D) object printing kit includes a polymeric material; a fusing agent including at least 5 vol % of a polar solvent; and a detailing agent. The detailing agent includes a non-polar, hydrophobic substance selected from the group consisting of a non-polar, hydrophobic liquid in its liquid state at a temperature ranging from about −80° C. to about 40° C., and a non-polar, hydrophobic wax having a melting temperature less than 120° C.

公开(公告)号：US11660808B2

公开(公告)日：2023-05-30

申请号：US16607919

申请日：2018-07-26

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

Inventor： David Soriano ,  Douglas Pederson ,  Nicola Baldo ,  Steve Ringwald ,  Samrin Sing ,  Matthew Baker

IPC: B29C64/153 ,  B33Y40/00 ,  B33Y50/00 ,  B29C64/386 ,  B29C64/35 ,  B22F12/50 ,  B22F12/90 ,  B22F10/30 ,  B33Y10/00 ,  B22F10/14 ,  B22F12/10

CPC classification number: B29C64/153 ,  B22F10/30 ,  B22F12/50 ,  B22F12/90 ,  B29C64/35 ,  B29C64/386 ,  B33Y40/00 ,  B33Y50/00 ,  B22F10/14 ,  B22F12/10 ,  B33Y10/00

Abstract: In example implementations, a powder level sensor is provided. The powder level sensor includes a capacitive sensor, a processor, and a cleaning mechanism. The processor is communicatively coupled to the capacitive sensor. The processor interprets a measurement of the capacitive sensor to detect a layer of residual build material on a surface of the powder level sensor. The cleaning mechanism may be communicatively coupled to the processor. The processor activates the cleaning mechanism to remove the layer of residual build material on the surface of the powder level sensor.

公开(公告)号：US11292189B2

公开(公告)日：2022-04-05

申请号：US16488715

申请日：2017-11-17

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

Inventor： Andrew Van Brocklin ,  Kevin P. DeKam ,  Vladek Kasperchik ,  Johnathon Holroyd ,  Douglas Pederson ,  Sterling Chaffins

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00

Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (εr) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.

公开(公告)号：US11318537B2

公开(公告)日：2022-05-03

申请号：US16074457

申请日：2017-01-31

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

Inventor： Greg Scott Long ,  Douglas Pederson ,  David A. Champion

IPC: B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N22/02 ,  B22F10/28 ,  B22F10/85

Abstract: A system and method for additive manufacturing (AM) including forming a product via AM, placing a resonator adjacent the product as the product is being formed in the AM, and determining a property of the product. The resonator operates over a microwave frequency spectrum and emanates electromagnetic energy.

公开(公告)号：US20220019193A1

公开(公告)日：2022-01-20

申请号：US17299765

申请日：2019-04-12

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

Inventor： M. Anthony Lewis ,  William J. Allen ,  Kristopher J. Erickson ,  Jarrid Wittkopf ,  Robert lonescu ,  Douglas Pederson

IPC: G05B19/4099 ,  B29C64/379 ,  B29C64/393 ,  B33Y40/20 ,  B33Y50/02 ,  B29C64/165 ,  B33Y30/00

Abstract: In one example in accordance with the present disclosure, a system is described. The system includes a movement device to move a mass with an object disposed therein. A receiver of the system receives accelerometer data from at least one accelerometer disposed within the mass in which the object is disposed. A controller of the system determines a pose of the object within the mass based on received accelerometer data.

公开(公告)号：US20210402695A1

公开(公告)日：2021-12-30

申请号：US16607919

申请日：2018-07-26

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

Inventor： David Soriano ,  Douglas Pederson ,  Nicola Baldo ,  Steve Ringwald ,  Samrin Sing ,  Matthew Baker

IPC: B29C64/35 ,  B29C64/153 ,  B29C64/386 ,  B33Y40/00 ,  B33Y50/00

Abstract: In example implementations, a powder level sensor is provided. The powder level sensor includes a capacitive sensor, a processor, and a cleaning mechanism. The processor is communicatively coupled to the capacitive sensor. The processor interprets a measurement of the capacitive sensor to detect a layer of residual build material on a surface of the powder level sensor. The cleaning mechanism may be communicatively coupled to the processor. The processor activates the cleaning mechanism to remove the layer of residual build material on the surface of the powder level sensor.

公开(公告)号：US20210283834A1

公开(公告)日：2021-09-16

申请号：US16488715

申请日：2017-11-17

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

Inventor： Andrew Van Brocklin ,  Kevin P. DeKam ,  Vladek Kasperchik ,  Johnathon Holroyd ,  Douglas Pederson ,  Sterling Chaffins

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00

Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (εr) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.

公开(公告)号：US11872757B2

公开(公告)日：2024-01-16

申请号：US17052087

申请日：2018-10-30

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

Inventor： David A. Champion ,  Douglas Pederson

IPC: B29C64/264 ,  B33Y30/00 ,  B29C64/393 ,  B22F10/85 ,  B28B1/00 ,  B28B17/00 ,  B22F12/41 ,  B22F10/14 ,  B22F10/73 ,  B22F12/10 ,  B22F12/60 ,  B33Y50/02

CPC classification number: B29C64/264 ,  B22F10/85 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/14 ,  B22F10/73 ,  B22F12/10 ,  B22F12/41 ,  B22F12/60 ,  B22F2998/10 ,  B22F10/14 ,  B22F3/10

Abstract: According to examples, an apparatus may include an agent delivery device to deliver a coalescing agent to selected locations of a build material layer and a plurality of microwave energy emitters, each of the microwave energy emitters including a tip to generate a focused microwave energy field onto a respective area near the tip, in which the tip is to be positioned to place a portion of the build material layer within the focused microwave energy field. The apparatus may also include a controller that may control the microwave energy emitters to direct microwave energy onto the build material layer.

公开(公告)号：US20230091752A1

公开(公告)日：2023-03-23

申请号：US17802832

申请日：2020-07-28

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

Inventor： David R. Otis, Jr. ,  Kevin E. Swier ,  Michael G. Monroe ,  Daniel Mosher ,  Douglas Pederson

IPC: B29C64/214 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/141 ,  B29C64/165 ,  B29C64/393 ,  B33Y50/02

Abstract: A 3D printer is disclosed herein. The 3D printer comprises a build material distributor to generate layers of a build material in a spreading direction along a spreading axis; a resonator mounted on the build material distributor to vibrate the build material distributor along the spreading axis at a frequency; and a controller. The controller is to control the resonator to vibrate the build material distributor at the frequency while controlling the build material distributor to spread a volume of build material over a platform to generate a layer of build material.