公开(公告)号：US12251701B2

公开(公告)日：2025-03-18

申请号：US16768881

申请日：2018-10-03

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

Inventor： Hilary Ely ,  Michael W. Cumbie ,  Adam Higgins ,  Rachel M. White ,  Erik D. Torniainen

IPC: C12P19/34 ,  B01L3/00 ,  B01L7/00

Abstract: A fluid thermal processing device may include a substrate, a platform projecting from the substrate, a fluid heating element supported by the platform, a temperature sensing element, distinct from the fluid heating element, supported by the platform and an enclosure supported by and cooperating with the substrate to form a fluid chamber about the platform. The fluid chamber forms a volume of uniform thickness conforming to and about the platform.

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：US20230356229A1

公开(公告)日：2023-11-09

申请号：US17909585

申请日：2020-03-30

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

Inventor： Carson Denison ,  Erik D. Torniainen ,  Richard W. Seaver

IPC: B01L7/00

CPC classification number: B01L7/52 ,  B01L2300/1883

Abstract: In one example in accordance with the present disclosure, a thermal cycling device is described. The thermal cycling device includes a fluid chamber to retain a fluid. A heating element is disposed around multiple sides of a cross-sectional perimeter of the fluid chamber and an insulator is disposed around multiple sides of a cross-sectional perimeter of the heating element. The thermal cycling device also includes a conductive body disposed around multiple sides of a cross-sectional perimeter of the insulator.

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：US11229912B2

公开(公告)日：2022-01-25

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 ,  G01N1/40

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.

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.

公开(公告)号：US20190168512A1

公开(公告)日：2019-06-06

申请号：US16270664

申请日：2019-02-08

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

Inventor： Alexander Govyadinov ,  Tsuyoshi Yamashita ,  Erik D. Torniainen

IPC: B41J2/18 ,  B41J2/14 ,  B41J2/175

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 including a second drop ejecting element, and a fluid circulation path including a first portion communicated with the fluid slot and the second fluid ejection chamber, and a second portion communicated with the first fluid ejection chamber and the second fluid ejection chamber, with the fluid circulation path including a fluid circulating element within the first portion.

公开(公告)号：US10308020B2

公开(公告)日：2019-06-04

申请号：US15747835

申请日：2015-10-27

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：US10286366B2

公开(公告)日：2019-05-14

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

IPC: B01F5/12 ,  B01F11/00 ,  B01F13/00 ,  B01F15/00 ,  B01L3/00

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.