公开(公告)号：US10850511B2

公开(公告)日：2020-12-01

申请号：US16402969

申请日：2019-05-03

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

Inventor： Alexander Govyadinov ,  Tsuyoshi Yamashita ,  Erik D. Torniainen ,  Nicholas McGuinness ,  David P. Markel

IPC: B41J2/14

Abstract: A fluid ejection device includes a fluid slot, a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element, a second fluid ejection chamber communicated with the fluid slot and including a second drop ejecting element, a fluid circulation path communicated with the first fluid ejection chamber and the second fluid ejection chamber, and a fluid circulating element within the fluid circulation path.

公开(公告)号：US20190255845A1

公开(公告)日：2019-08-22

申请号：US16402969

申请日：2019-05-03

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

Inventor： Alexander Govyadinov ,  Tsuyoshi Yamashita ,  Erik D. Torniainen ,  Nicholas McGuinness ,  David P. Markel

IPC: B41J2/14

Abstract: A fluid ejection device includes a fluid slot, a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element, a second fluid ejection chamber communicated with the fluid slot and including a second drop ejecting element, a fluid circulation path communicated with the first fluid ejection chamber and the second fluid ejection chamber, and a fluid circulating element within the fluid circulation path.

公开(公告)号：US10272691B2

公开(公告)日：2019-04-30

申请号：US15205900

申请日：2016-07-08

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

Inventor： Pavel Kornilovich ,  Alexander Govyadinov ,  David P. Markel ,  Erik D. Torniainen

IPC: F04B19/20 ,  B41J2/18 ,  B41J2/14 ,  B41J2/175 ,  B01L3/00 ,  F04B19/00 ,  F04B19/24

Abstract: A network of microfluidic channels may include at least three loops interconnected at a junction. Each of the loops may include a fluid channel having a length extending from the junction to a second end; and a fluid actuator along the fluid channel and located at a first distance from junction along the length of the fluid channel and at a second distance less than the first distance from the second end. Activation of the fluid actuator of selected ones of the at least three loops may selectively produce net fluid flow in different directions about the loops. In one implementation, a fluid channel having a fluid actuator may have a bridging portion that extends over another fluid channel.

公开(公告)号：US20190111698A1

公开(公告)日：2019-04-18

申请号：US16217008

申请日：2018-12-11

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

Inventor： Alexander Govyadinov ,  Eric D. Torniainen ,  David P. Markel

IPC: B41J2/18 ,  B01L3/00 ,  F04B19/24 ,  B41J2/14 ,  B41J2/175 ,  F04B19/00 ,  F04B19/20

CPC classification number: B41J2/18 ,  B01L3/502715 ,  B01L3/50273 ,  B01L3/502746 ,  B01L2300/0816 ,  B01L2300/088 ,  B01L2300/123 ,  B01L2400/0481 ,  B01L2400/082 ,  B41J2/1404 ,  B41J2/14201 ,  B41J2/1753 ,  B41J2002/14467 ,  B41J2202/12 ,  F04B19/006 ,  F04B19/20 ,  F04B19/24

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.

公开(公告)号：US20190048309A1

公开(公告)日：2019-02-14

申请号：US16079482

申请日：2016-04-22

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

Inventor： Alexander Govyadinov ,  Erik D. Torniainen ,  David P. Markel ,  Pavel Kornilovich

IPC: C12M1/00 ,  C12N1/06 ,  B01L3/00

Abstract: In an example implementation, a method of cell lysis includes moving cell fluid from a first reservoir through a microfluidic channel toward a second reservoir, activating a lysing element multiple times as a cell from the cell fluid passes through the microfluidic channel, and moving lysate fluid that results from the activating through the microfluidic channel and into the second reservoir.

公开(公告)号：US20180272340A1

公开(公告)日：2018-09-27

申请号：US15763402

申请日：2015-09-25

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

Inventor： Alexander Govyadinov ,  Erik D. Torniainen ,  Pavel Kornilovich ,  David P. Markel

IPC: B01L3/00

CPC classification number: B01L3/50273 ,  B01L3/502707 ,  B01L2300/0816 ,  B01L2300/0861 ,  B01L2400/043 ,  B01L2400/0436 ,  B01L2400/0439 ,  B01L2400/0442 ,  B01L2400/0481 ,  B01L2400/06

Abstract: Example fluidic channels for microfluidic devices are disclosed. In examples disclosed herein, an example microfluidic device includes a body having a microfluidic network. The microfluidic network includes a main fluid channel to transport a biological fluid from a first cavity of the microfluidic network to a second cavity of the microfluidic network. An auxiliary fluid channel is in fluid communication with to the main fluid channel. The auxiliary fluid channel has a first end and a second end. The first end is in fluid communication with the main fluid channel and the second end is spaced from the main fluid channel. A fluid actuator is positioned in the auxiliary fluid channel to induce fluid flow in the main fluid channel.

公开(公告)号：US11911731B2

公开(公告)日：2024-02-27

申请号：US16316896

申请日：2016-10-21

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

Inventor： Erik D. Torniainen ,  Alexander N. Govyadinov ,  Pavel Kornilovich ,  David P. Markel ,  Richard W. Seaver

IPC: B01F33/30 ,  B01F23/41 ,  B01F25/20 ,  B01F25/31 ,  B01F35/71

CPC classification number: B01F23/41 ,  B01F25/20 ,  B01F25/31 ,  B01F33/30 ,  B01F35/71755 ,  B01F35/717612

Abstract: An immiscible droplet generation system may include a chip, a microfluidic channel integrated into the chip, an input to the microfluidic channel through which the microfluidic channel is to be filled with a first fluid that is to be moved through the microfluidic channel and a droplet generator. The droplet generator is integrated into the chip to generate a droplet of a second fluid, immiscible within the first fluid, and to inject the droplet into the first fluid in the microfluidic channel.

公开(公告)号：US11278891B2

公开(公告)日：2022-03-22

申请号：US15763402

申请日：2015-09-25

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

Inventor： Alexander Govyadinov ,  Erik D. Torniainen ,  Pavel Kornilovich ,  David P. Markel

IPC: B81B1/00 ,  B01L3/00

Abstract: Example fluidic channels for microfluidic devices are disclosed. In examples disclosed herein, an example microfluidic device includes a body having a microfluidic network. The microfluidic network includes a main fluid channel to transport a biological fluid from a first cavity of the microfluidic network to a second cavity of the microfluidic network. An auxiliary fluid channel is in fluid communication with to the main fluid channel. The auxiliary fluid channel has a first end and a second end. The first end is in fluid communication with the main fluid channel and the second end is spaced from the main fluid channel. A fluid actuator is positioned in the auxiliary fluid channel to induce fluid flow in the main fluid channel.

公开(公告)号：US20210023852A1

公开(公告)日：2021-01-28

申请号：US17065831

申请日：2020-10-08

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

Inventor： Alexander Govyadinov ,  Erik D. Torniainen ,  David P. Markel

IPC: B41J2/18 ,  B41J2/14 ,  B41J2/175 ,  F04B19/00 ,  F04B19/20 ,  F04B19/24 ,  B01L3/00

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 firs channel and the second end of the second channel and a fifth channel extending between and connecting the third channel and the fourth channel.

公开(公告)号：US20210010488A1

公开(公告)日：2021-01-14

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

IPC: F04F7/00 ,  F04B53/10 ,  B01L3/00 ,  B81B1/00

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.