公开(公告)号：US20200061910A1

公开(公告)日：2020-02-27

申请号：US16467412

申请日：2017-12-05

Applicant: President and Fellows of Harvard College ,  ETH Zurich (Swiss Federal Institute of Technology)

Inventor： Jennifer A. Lewis ,  Jochen Mueller ,  Jordan R. Raney ,  Kristina Shea

IPC: B29C64/209 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00

Abstract: In one aspect, the present disclosure provides a nozzle for 3-D printing. The nozzle may include a first nozzle tip defining a first outlet, where the first nozzle tip includes a first channel extending therethrough. The nozzle may further include a second nozzle tip defining a second outlet, where the second nozzle tip includes a second channel extending therethrough, and where the first channel surrounds the second outlet. The second nozzle tip may be retracted longitudinally with respect to the first nozzle tip such that the second outlet of the second nozzle tip is located in the first channel.

公开(公告)号：US12005631B2

公开(公告)日：2024-06-11

申请号：US17982877

申请日：2022-11-08

Applicant: President and Fellows of Harvard College

Inventor： Natalie M. Larson ,  Jochen Mueller ,  Jennifer A. Lewis

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/255 ,  B29C64/264 ,  B29C64/336 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/118 ,  B29C64/209 ,  B29C64/255 ,  B29C64/264 ,  B29C64/336 ,  B33Y10/00 ,  B33Y30/00

Abstract: A printhead comprises a plurality of ink cartridges and a nozzle, where the nozzle and the ink cartridges are configured to rotate together about an axis during printing. The nozzle includes a nozzle body comprising an inlet end, an outlet end, and one or more internal passageways extending through the nozzle body from the inlet end to the outlet end. The one or more internal passageways terminate at one or more outlets at or near the outlet end. The nozzle also includes plurality of nozzle inlets at the inlet end for delivery of flowable inks into the internal passageways, where each nozzle inlet is in fluid communication with a dispensing end of one of the ink cartridges.

公开(公告)号：US10946588B2

公开(公告)日：2021-03-16

申请号：US16081812

申请日：2017-03-03

Applicant: President and Fellows of Harvard College

Inventor： Jennifer A. Lewis ,  Mark Andrew Skylar-Scott ,  Jochen Mueller ,  David Kolesky

IPC: B29C64/393 ,  G05B19/4099 ,  B33Y30/00 ,  B29C64/209 ,  B29C67/00 ,  B29C64/112 ,  G06F30/00 ,  B29C64/118 ,  G06F119/18 ,  B33Y10/00 ,  B33Y50/02

Abstract: A present disclosure relates to a system for automatic design and manufacturing of 3D printing units and 3D products. The system is configured to obtain specification of a target structure corresponding to a 3D product; automatically determine a design and a printing path of a 3D printing unit based on the specification of the target structure, wherein the 3D printing unit is a micronozzle unit configured to print the target structure of the 3D product; automatically determine a manufacturing procedure to print the 3D printing unit based on the specification of the target structure; and instruct a 3D printer to print the 3D printing unit according to the manufacturing procedure and the printing path of the 3D printing unit.

公开(公告)号：US20190070786A1

公开(公告)日：2019-03-07

申请号：US16081812

申请日：2017-03-03

Applicant: President and Fellows of Harvard College

Inventor： Jennifer A. Lewis ,  Mark Andrew Skylar-Scott ,  Jochen Mueller ,  David Kolesky

IPC: B29C64/393 ,  B29C64/118 ,  B29C64/209 ,  G05B19/4099 ,  G06F17/50

Abstract: A present disclosure relates to a system for automatic design and manufacturing of 3D printing units and 3D products. The system is configured to obtain specification of a target structure corresponding to a 3D product; automatically determine a design and a printing path of a 3D printing unit based on the specification of the target structure, wherein the 3D printing unit is a micronozzle unit configured to print the target structure of the 3D product; automatically determine a manufacturing procedure to print the 3D printing unit based on the specification of the target structure; and instruct a 3D printer to print the 3D printing unit according to the manufacturing procedure and the printing path of the 3D printing unit.

公开(公告)号：US20230143048A1

公开(公告)日：2023-05-11

申请号：US17982877

申请日：2022-11-08

Applicant: President and Fellows of Harvard College

Inventor： Natalie M. Larson ,  Jochen Mueller ,  Jennifer A. Lewis

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/264 ,  B29C64/255 ,  B29C64/336

CPC classification number: B29C64/118 ,  B29C64/209 ,  B29C64/264 ,  B29C64/255 ,  B29C64/336 ,  B33Y10/00

Abstract: A printhead comprises a plurality of ink cartridges and a nozzle, where the nozzle and the ink cartridges are configured to rotate together about an axis during printing. The nozzle includes a nozzle body comprising an inlet end, an outlet end, and one or more internal passageways extending through the nozzle body from the inlet end to the outlet end. The one or more internal passageways terminate at one or more outlets at or near the outlet end. The nozzle also includes plurality of nozzle inlets at the inlet end for delivery of flowable inks into the internal passageways, where each nozzle inlet is in fluid communication with a dispensing end of one of the ink cartridges.

公开(公告)号：US11472102B2

公开(公告)日：2022-10-18

申请号：US16467412

申请日：2017-12-05

Applicant: President and Fellows of Harvard College ,  ETH Zurich (Swiss Federal Institute of Technology)

Inventor： Jennifer A. Lewis ,  Jochen Mueller ,  Jordan R. Raney ,  Kristina Shea

IPC: B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118 ,  B33Y70/00 ,  B29C64/106 ,  B33Y80/00

Abstract: In one aspect, the present disclosure provides a nozzle for 3-D printing. The nozzle may include a first nozzle tip defining a first outlet, where the first nozzle tip includes a first channel extending therethrough. The nozzle may further include a second nozzle tip defining a second outlet, where the second nozzle tip includes a second channel extending therethrough, and where the first channel surrounds the second outlet. The second nozzle tip may be retracted longitudinally with respect to the first nozzle tip such that the second outlet of the second nozzle tip is located in the first channel.

公开(公告)号：US11207831B2

公开(公告)日：2021-12-28

申请号：US16466106

申请日：2017-12-05

Applicant: President and Fellows of Harvard College ,  ETH Zurich (Swiss Federal Institute of Technology)

Inventor： Jennifer A. Lewis ,  Jochen Mueller ,  Jordan R. Raney ,  Kristina Shea

IPC: B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118 ,  B33Y70/00 ,  B29C64/106 ,  B33Y80/00

Abstract: A 3D printed core-shell filament comprises an elongated core radially surrounded by an outer shell with a barrier layer in between, where the elongated core comprises a ductile polymer and the outer shell comprises a stiff polymer having a Young's modulus higher than that of the ductile polymer. A lightweight lattice structure may comprise a plurality of the 3D printed core-shell filaments deposited in layers.

公开(公告)号：US11969935B2

公开(公告)日：2024-04-30

申请号：US16467394

申请日：2017-12-05

Applicant: President and Fellows of Harvard College

Inventor： Jennifer A. Lewis ,  Mark A. Skylar-Scott ,  Jochen Mueller

IPC: B29C64/106 ,  B29C48/02 ,  B29C48/05 ,  B29C48/255 ,  B29C48/285 ,  B29C48/30 ,  B29C48/92 ,  B29C64/209 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B29C64/106 ,  B29C48/02 ,  B29C48/05 ,  B29C48/255 ,  B29C48/2888 ,  B29C48/298 ,  B29C48/304 ,  B29C48/92 ,  B29C64/209 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: In one aspect, the present disclosure provides a nozzle for a 3D printing system. The nozzle may include a flowpath with a material inlet and a material outlet. The nozzle may further include a valve in fluid communication with the flowpath between the material inlet and the material outlet, where the valve includes a closed state and an open state, where in the closed state the valve obstructs the flowpath between the material inlet and the material outlet, and where in the open state the material inlet is in fluid communication with the material outlet. The nozzle may further include a compensator in fluid communication with the flowpath, where the compensator includes a contracted state associated with the open state of the valve and an expanded state associated with the closed state of the valve.

公开(公告)号：US20240100767A1

公开(公告)日：2024-03-28

申请号：US18462180

申请日：2023-09-06

Applicant: President and Fellows of Harvard College

Inventor： Jennifer A. LEWIS ,  Mark A. Skylar-Scott ,  Jochen Mueller

IPC: B29C64/106 ,  B29C48/02 ,  B29C48/05 ,  B29C48/255 ,  B29C48/285 ,  B29C48/30 ,  B29C48/92 ,  B29C64/209 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B29C64/106 ,  B29C48/02 ,  B29C48/05 ,  B29C48/255 ,  B29C48/2888 ,  B29C48/298 ,  B29C48/304 ,  B29C48/92 ,  B29C64/209 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: In one aspect, the present disclosure provides a nozzle for a 3D printing system. The nozzle may include a flowpath with a material inlet and a material outlet. The nozzle may further include a valve in fluid communication with the flowpath between the material inlet and the material outlet, where the valve includes a closed state and an open state, where in the closed state the valve obstructs the flowpath between the material inlet and the material outlet, and where in the open state the material inlet is in fluid communication with the material outlet. The nozzle may further include a compensator in fluid communication with the flowpath, where the compensator includes a contracted state associated with the open state of the valve and an expanded state associated with the closed state of the valve.

公开(公告)号：US20200086564A1

公开(公告)日：2020-03-19

申请号：US16467394

申请日：2017-12-05

Applicant: President and Fellows of Harvard College

Inventor： Jennifer A. Lewis ,  Mark Andrew Skylar-Scott ,  Jochen Mueller

IPC: B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/106 ,  B29C64/321 ,  B33Y40/00

Abstract: In one aspect, the present disclosure provides a nozzle for a 3D printing system. The nozzle may include a flowpath with a material inlet and a material outlet. The nozzle may further include a valve in fluid communication with the flowpath between the material inlet and the material outlet, where the valve includes a closed state and an open state, where in the closed state the valve obstructs the flowpath between the material inlet and the material outlet, and where in the open state the material inlet is in fluid communication with the material outlet. The nozzle may further include a compensator in fluid communication with the flowpath, where the compensator includes a contracted state associated with the open state of the valve and an expanded state associated with the closed state of the valve.