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公开(公告)号：US10252527B2
公开(公告)日：2019-04-09
申请号：US15834353
申请日：2017-12-07
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： James A. Feinn , David P. Markel , Albert Nagao , Thomas R. Strand , Paul A. Richards , Lawrence H. White , Erik D. Torniainen
IPC: B41J2/14
Abstract: In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.
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公开(公告)号：US20150190767A1
公开(公告)日：2015-07-09
申请号：US14407005
申请日：2012-09-24
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Erik D. Torniainen , David P. Markel , Pavel Kornilovich
CPC classification number: B01F5/12 , B01F11/0071 , B01F13/0059 , B01F15/00493 , B01L3/50273 , B01L2300/0867 , B01L2300/0883 , B01L2400/0433 , B01L2400/0442 , B01L2400/0487
Abstract: In one embodiment, a microfluidic mixing device includes a mixing channel, a fluid inlet chamber to pass fluids into the mixing channel, an axis-asymmetric mixing actuator integrated within the channel to cause fluid displacements that mix the fluids as they flow through the channel, and an outlet chamber to receive the mixed fluids.
Abstract translation: 在一个实施例中，微流体混合装置包括混合通道，用于将流体输送到混合通道中的流体入口室，集成在通道内的轴对称混合致动器，以引起当流体流过通道时混合流体的流体位移， 以及用于接收混合流体的出口室。
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公开(公告)号：US20230381783A1
公开(公告)日：2023-11-30
申请号：US18032543
申请日：2020-10-19
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Carson Denison , Erik D. Torniainen , Richard W. Seaver
CPC classification number: B01L7/525 , C12Q1/686 , B01L2300/1827 , B01L2400/0442 , B01L3/502784
Abstract: In one example in accordance with the present disclosure, a device for conducting a reaction with a fluid sample is described. The device includes: a microfluidic channel; a number of heating elements along the microfluidic channel; and an inertial pump at each of opposite ends of the microfluidic channel to oscillate the fluid sample along the microfluidic channel.
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公开(公告)号：US11686327B2
公开(公告)日：2023-06-27
申请号：US16493344
申请日：2017-04-07
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Erik D. Torniainen , Alexander Govyadinov , Pavel Kornilovich , David P. Markel
CPC classification number: F04F7/00 , B01L3/50273 , B01L3/502738 , B81B1/006 , F04B53/10 , B01L2200/141 , B01L2200/16 , B01L2400/0605 , B81B2201/051 , B81B2203/0338
Abstract: The present disclosure is drawn to inertial pumps. An inertial pump can include a microfluidic channel, a fluid actuator located in the microfluidic channel, and a check valve located in the microfluidic channel. The check valve can include a moveable valve element, a narrowed channel segment located upstream of the moveable valve element, and a blocking element formed in the microfluidic channel downstream of the moveable valve element. The narrowed channel segment can have a width less than a width of the moveable valve element so that the moveable valve element can block fluid flow through the check valve when the moveable valve element is positioned in the narrowed channel segment. The blocking element can be configured such that the blocking element constrains the moveable valve element within the check valve while also allowing fluid flow when the moveable valve element is positioned against the blocking element.
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公开(公告)号：US11097270B2
公开(公告)日：2021-08-24
申请号：US16300115
申请日：2016-07-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Pavel Kornilovich , Alexander Govyadinov , David P. Markel , Erik D. Torniainen
Abstract: A microfluidic filtering system may include a first microfluidic channel, a first pump to move fluid along the first microfluidic channel in a first direction, a second microfluidic channel, a second pump to move fluid along the second microfluidic channel in a second direction opposite to the first direction and a filter channel extending between and interconnecting the first microfluidic channel and the second microfluidic channel.
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Patent Agency Ranking
公开(公告)号：US10913039B2
公开(公告)日：2021-02-09
申请号：US16300975
申请日：2016-07-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Pavel Kornilovich , Erik D. Torniainen , David P. Markel
Abstract: One example provides a microfluidic mixing device that includes a main fluidic channel to provide main fluidic channel flow and a number of I-shaped secondary channels extending outwardly from a portion of the main fluidic channel. A number of inertial pumps are located within the I-shaped secondary channels to create serpentine flows in the direction of the main fluidic channel flow or create vorticity-inducing counterflow in the main fluidic channel.
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公开(公告)号：US20210001337A1
公开(公告)日：2021-01-07
申请号：US16605706
申请日：2018-03-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Viktor Shkolnikov , Alexander Govyadinov , Pavel Kornilovich , Erik D. Torniainen
IPC: B01L3/00
Abstract: An example system includes an input channel having a first end and a second end to receive particles through the first end, a separation chamber, at least two output channels, and an integrated pump to facilitate flow through the separation chamber. The separation chamber is in fluid communication with the second end of the input channel. The separation chamber has a passive separation structure, the passive separation structure including an array of columns spaced apart to facilitate separation of particles in a flow based on a size of the particles. Each output channel is in fluid communication with the separation chamber to receive separated particles. The integrated pump is positioned within at least one of the input channel or one of the at least two output channels.
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公开(公告)号：US10807376B2
公开(公告)日：2020-10-20
申请号：US16217008
申请日：2018-12-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Erik D. Torniainen , David P. Markel
Abstract: A fluid ejection device may include a first channel having a first end and a second end, a first drop ejector along the first channel, a second channel having a first end and a second end, a second drop ejector along the second channel, a third channel extending between and connecting the first end of the first channel and the first end of the second channel, a fourth channel extending between and connecting the second end of the first channel and the second end of the second channel and a fifth channel extending between and connecting the third channel and the fourth channel.
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公开(公告)号：US10780698B2
公开(公告)日：2020-09-22
申请号：US16073146
申请日：2016-06-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Michael W Cumbie, Jr. , Chien-Hua Chen , Erik D. Torniainen
Abstract: A fluid ejection die includes a substrate including an array of nozzles.
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公开(公告)号：US10562304B2
公开(公告)日：2020-02-18
申请号：US16139716
申请日：2018-09-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： James A. Feinn , Albert Nagao , Thomas R. Strand , David R. Thomas , Erik D. Torniainen , Lawrence H. White
IPC: B41J2/14
Abstract: An inkjet nozzle includes an aperture with a noncircular opening substantially defined by a polynomial equation. A droplet generator is also described which includes a firing chamber fluidically coupled to a fluid reservoir a heating resistor and a nozzle. The nozzle includes an aperture forming a passage from the firing chamber to the exterior of the droplet generator through a top hat layer. The nozzle is defined by a closed polynomial and has a mathematically smooth and mathematically continuous shape around aperture's perimeter wall, with two protrusions extending into the center of the aperture.
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