-
公开(公告)号：US20160271940A1
公开(公告)日：2016-09-22
申请号：US15170588
申请日：2016-06-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Eric T. Martin , Andrew L. Van Brocklin , David Maxfield
IPC: B41J2/045
CPC classification number: B41J2/04541 , B41J2/0451 , B41J2/0458 , B41J2/14153 , B41J2002/14354 , G01R27/02
Abstract: Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.
Abstract translation: 测量喷墨喷嘴可以包括在发射发射命令之后进行至少一个阻抗测量，以检测是否存在驱动气泡，并采取另一阻抗测量来检测驱动气泡的崩溃。
-
公开(公告)号：US11858041B2
公开(公告)日：2024-01-02
申请号：US15734604
申请日：2019-01-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Greg Long , Andrew L. Van Brocklin , David Champion
CPC classification number: B22F10/85 , B22F3/003 , B22F10/40 , G01N27/043 , B22F2203/11 , B33Y40/20
Abstract: In an example implementation, a sintering system includes a support structure in a sintering furnace to support a token green object during a sintering process. The system includes wires installed into the furnace and through the support structure to contact the object. An impedance meter is operatively coupled to the wires to determine electrical impedance of the object during the sintering process.
-
公开(公告)号：US11668528B2
公开(公告)日：2023-06-06
申请号：US16972109
申请日：2019-01-04
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： John Liebeskind , Andrew L. Van Brocklin , David Champion
IPC: F27D21/02 , B22F3/00 , B22F3/10 , C03C13/04 , F27B17/00 , F27B17/02 , G01N21/55 , F21V8/00 , C21D1/34 , C21D11/00 , B22F3/22 , G01N21/84
CPC classification number: F27D21/02 , B22F3/003 , B22F3/10 , C03C13/048 , F27B17/0016 , F27B17/02 , G01N21/55 , G02B6/0008 , B22F3/225 , B22F2203/00 , B22F2203/03 , B22F2203/05 , B22F2998/10 , B22F2999/00 , C21D1/34 , C21D11/005 , G01N2021/8411 , G01N2201/1222
Abstract: In an example implementation, a sintering system includes optical fiber installed into a sintering furnace. A support structure inside the furnace is to support a token green object in a predetermined position and to hold a distal end of the fiber adjacent to the predetermined position. A light source is operably engaged at a proximal end of the fiber to transmit light through the fiber into the furnace. A light detector is operably engaged at the proximal end of the fiber to receive reflected light through the fiber that scatters off a surface of the token green object.
-
公开(公告)号：US11491714B2
公开(公告)日：2022-11-08
申请号：US16607469
申请日：2018-04-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , James P. Shields
IPC: B29C64/153 , B33Y10/00 , B33Y50/02 , B29C64/393 , B29C64/165 , B22F10/10 , B22F10/40
Abstract: According to one example there is provided a non-transitory computer readable storage medium comprising instructions that, when executed by a processor, cause the processor to: obtain an object model; analyse the object model; obtain characteristics of an interface agent; generate a modified object model comprising a support structure and an interface between the support structure and the object, the interface being such that after generation of a 3D printed green part and after sintering thereof, the support structure may be released with a predetermined force; and controlling a 3D printer to generate a 3D printed green part based on the modified object model.
-
公开(公告)号：US20210331381A1
公开(公告)日：2021-10-28
申请号：US16607469
申请日：2018-04-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , James P. Shields
IPC: B29C64/153 , B29C64/165 , B29C64/393 , B22F10/10 , B22F10/40 , B33Y10/00 , B33Y50/02
Abstract: According to one example there is provided a non-transitory computer readable storage medium comprising instructions that, when executed by a processor, cause the processor to: obtain an object model; analyse the object model; obtain characteristics of an interface agent; generate a modified object model comprising a support structure and an interface between the support structure and the object, the interface being such that after generation of a 3D printed green part and after sintering thereof, the support structure may be released with a predetermined force; and controlling a 3D printer to generate a 3D printed green part based on the modified object model.
-
Patent Agency Ranking
公开(公告)号：US10112390B2
公开(公告)日：2018-10-30
申请号：US15822348
申请日：2017-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J. Fricke , Andrew L. Van Brocklin , Scott A. Linn
Abstract: In some examples, a piezoelectric fluid ejection assembly includes a micro-electro mechanical system (MEMS) die including a plurality of nozzles, a first application-specific integrated circuit (ASIC) die electrically connected to the MEMS die, and a second ASIC die electrically connected to the MEMS die. The first ASIC die includes a plurality of driver amplifiers for respective nozzles of a first number of the plurality of nozzles, and a plurality of unique waveform data generators to generate respective different waveforms for activating the nozzles of the first number of the plurality of nozzles.
-
公开(公告)号：US10076905B2
公开(公告)日：2018-09-18
申请号：US15709067
申请日：2017-09-19
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J. Fricke , Andrew L. Van Brocklin
CPC classification number: B41J2/14201 , B41J2/14072 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: In some examples, a piezoelectric printhead assembly can include a plurality of piezoelectric micro-electro mechanical system (MEMS) dies, and application-specific integrated circuit (ASIC) dies electrically connected to the piezoelectric MEMS dies.
-
公开(公告)号：US20180072059A1
公开(公告)日：2018-03-15
申请号：US15822348
申请日：2017-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J. Fricke , Andrew L. Van Brocklin , Scott A. Linn
CPC classification number: B41J2/14209 , B41J2/04541 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/14072 , B41J2/14201 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: In some examples, a piezoelectric fluid ejection assembly includes a micro-electro mechanical system (MEMS) die including a plurality of nozzles, a first application-specific integrated circuit (ASIC) die electrically connected to the MEMS die, and a second ASIC die electrically connected to the MEMS die. The first ASIC die includes a plurality of driver amplifiers for respective nozzles of a first number of the plurality of nozzles, and a plurality of unique waveform data generators to generate respective different waveforms for activating the nozzles of the first number of the plurality of nozzles.
-
公开(公告)号：US20180001637A1
公开(公告)日：2018-01-04
申请号：US15709067
申请日：2017-09-19
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J. Fricke , Andrew L. Van Brocklin
CPC classification number: B41J2/14201 , B41J2/14072 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: In some examples, a piezoelectric printhead assembly can include a plurality of piezoelectric micro-electro mechanical system (MEMS) dies, and application-specific integrated circuit (ASIC) dies electrically connected to the piezoelectric MEMS dies.
-
公开(公告)号：US20170008285A1
公开(公告)日：2017-01-12
申请号：US15262248
申请日：2016-09-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Eric T. Martin , Alexander Govyadinov , David Maxfield
IPC: B41J2/14
CPC classification number: B41J2/14153 , B41J2/0451 , B41J2/04555 , B41J2/0458 , B41J2/04586 , B41J29/393 , B41J2002/14354
Abstract: A method for determining an issue in an inkjet nozzle with impedance measurements, includes taking a first impedance measurement to detect a drive bubble with an impedance sensor; and taking a second impedance measurement to detect said drive bubble with said impedance sensor after said first impedance measurement.
Abstract translation: 一种用于通过阻抗测量确定喷墨喷嘴中的问题的方法，包括采用第一阻抗测量来利用阻抗传感器检测驱动气泡; 以及在所述第一阻抗测量之后，用所述阻抗传感器进行第二阻抗测量来检测所述驱动气泡。
-
-
-
-
-
-
-
-
-
Search Results
50
records
(took 0.023 seconds)
