公开(公告)号：US11465341B2

公开(公告)日：2022-10-11

申请号：US16073222

申请日：2016-04-28

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

Inventor： Garry Hinch ,  Kevin P. DeKam ,  Sterling Chaffins ,  James William Stasiak

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C67/00

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

公开(公告)号：US20210362408A1

公开(公告)日：2021-11-25

申请号：US17047729

申请日：2018-10-16

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

Inventor： Kevin P. DeKam ,  Sterling Chaffins ,  Cassady Sparks Roop

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

Abstract: The present disclosure is drawn to 3D printing kits, multi-fluid kits for 3D printing, and methods of making 3D printed articles. In one example, a 3D printing kit can include a powder bed material, a fusible fluid, and a magnetic fluid. The powder bed material can include polymer particles. The fusible fluid can include water and a radiation absorber. The fusible fluid can be to selectively apply to the powder bed material. The magnetic fluid can include magnetic particles, and the magnetic fluid can be to selectively apply to the powder bed material.

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：US20210229350A1

公开(公告)日：2021-07-29

申请号：US17047455

申请日：2018-10-19

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

Inventor： Sterling Chaffins ,  David Tucker ,  Kevin P. DeKam ,  David C. Woodlock ,  Lee Dockstader

IPC: B29C64/188 ,  B29C64/153 ,  B29C64/165 ,  B33Y40/20 ,  C25D5/56

Abstract: The present disclosure is drawn to 3D printing kits and methods of making 3D printed articles. In one example, a 3D printing kit can include a powder bed material, a fusible fluid, and an activator fluid. The powder bed material can include polymer particles. The fusible fluid can include a radiation absorber. The fusible fluid can be to selectively apply to the powder bed material. The activator fluid can include a non-conductive electroless metal plating activator. The activator fluid can also be to selectively apply to the powder bed material.

公开(公告)号：US11064572B2

公开(公告)日：2021-07-13

申请号：US16073163

申请日：2016-06-17

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

Inventor： Sterling Chaffins ,  Cassady Sparks Roop ,  Kevin P. DeKam

IPC: H05B1/02 ,  H05B3/14 ,  G01B1/00 ,  G01B7/16 ,  B29C64/165 ,  B29C64/218 ,  G01L1/22 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29K101/12 ,  C09D11/037

Abstract: According to an example, a three-dimensional (3D) printed heater may include a part body formed of fused thermoplastic polymer particles and an electrically resistive element formed of a matrix of conductive particles interspersed between a matrix of thermoplastic polymer particles. The conductive particles and the thermoplastic polymer particles may be provided at respective densities to cause the electrically resistive element to have a predetermined resistance level. The 3D printed heater may also include electrical contacts connected to the electrically resistive element, in which a current is to be applied through the electrically resistive element via the electrical contacts to cause the electrically resistive element to generate a predefined level of heat.

公开(公告)号：US10375765B2

公开(公告)日：2019-08-06

申请号：US16073142

申请日：2016-04-15

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

Inventor： Sterling Chaffins ,  Cassady Roop ,  Kevin P. DeKam

IPC: H05B3/14 ,  G01L1/22 ,  G01B1/00 ,  G01B7/16 ,  B29C64/165 ,  B29C64/218 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29K101/12 ,  C09D11/037

Abstract: A 3-dimensional printed load cell part can include a part body formed of fused thermoplastic polymer particles, and a plurality of strain sensors separately formed of a matrix of conductive particles interlocked with a matrix of fused thermoplastic polymer particles. The plurality of strain sensors can have a first electrical contact at a first end and a second electrical contact at a second end. The particles of the plurality of strain sensors can be continuously fused to the particles of the part body.

公开(公告)号：US20190022930A1

公开(公告)日：2019-01-24

申请号：US16073222

申请日：2016-04-28

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

Inventor： Garry Hinch ,  Kevin P. DeKam ,  Sterling Chaffins ,  James William Stasiak

IPC: B29C64/165

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

公开(公告)号：US20190022929A1

公开(公告)日：2019-01-24

申请号：US16073142

申请日：2016-04-15

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

Inventor： Sterling Chaffins ,  Cassady Roop ,  Kevin P. DeKam

IPC: B29C64/165 ,  B29C64/218 ,  G01L1/22

CPC classification number: H05B3/146 ,  B29C64/165 ,  B29C64/209 ,  B29C64/218 ,  B29K2101/12 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  C09D11/037 ,  G01B1/00 ,  G01B7/18 ,  G01L1/2293 ,  H05B3/145 ,  H05B2203/003 ,  H05B2203/013 ,  H05B2203/017

Abstract: A 3-dimensional printed load cell part can include a part body formed of fused thermoplastic polymer particles, and a plurality of strain sensors separately formed of a matrix of conductive particles interlocked with a matrix of fused thermoplastic polymer particles. The plurality of strain sensors can have a first electrical contact at a first end and a second electrical contact at a second end. The particles of the plurality of strain sensors can be continuously fused to the particles of the part body.