公开(公告)号：US20210031188A1

公开(公告)日：2021-02-04

申请号：US17046126

申请日：2018-11-22

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

Inventor： John LAHMANN ,  Pavel KORNILOVICH ,  Silam J CHOY

IPC: B01L3/00

Abstract: An example device includes a chamber to receive a fluid, a first channel in communication with the chamber, a second channel in communication with the chamber, a target microfluidic network at the second channel, a first droplet ejector positioned at the first channel to draw a first portion of fluid through the first channel, and a second droplet ejector positioned at the second channel downstream of the target microfluidic network. The second droplet ejector is to draw a second portion of fluid through the second channel and into the target microfluidic network.

公开(公告)号：US20170203578A1

公开(公告)日：2017-07-20

申请号：US15326081

申请日：2014-07-25

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

Inventor： Silam J CHOY ,  David Olsen ,  Kevin E Swier

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/175 ,  B41J2/17563 ,  B41J2/18 ,  F16K31/44

Abstract: A regulator component includes a pressure regulator, a liquid filter, a vent with air filter downstream of the liquid filter, a second vent with air filter upstream of the liquid filter, and an outlet.

公开(公告)号：US20210138458A1

公开(公告)日：2021-05-13

申请号：US17045873

申请日：2018-11-22

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

Inventor： John LAHMANN ,  Pavel KORNILOVICH ,  Silam J CHOY

IPC: B01L3/00

Abstract: An example method includes providing fluid to a chamber. The chamber feeds a first channel terminating at a first droplet ejector and a second channel terminating at a second droplet ejector. The method further includes sequencing ejection of droplets at the first droplet ejector and the second droplet ejector to induce negative pressure to provide a sequenced output flow of the fluid through the first channel to a first target microfluidic network and through the second channel to a second target microfluidic network, and controlling the first and second target microfluidic networks to perform an analytical process with the fluid.

公开(公告)号：US20210023555A1

公开(公告)日：2021-01-28

申请号：US17045739

申请日：2018-11-21

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

Inventor： John LAHMANN ,  Silam J CHOY ,  Pavel KORNILOVICH

IPC: B01L3/00

Abstract: An example device includes a chamber including a fluid inlet, a fluid outlet, and a negative-pressure port. The negative-pressure port is positioned relative to the fluid inlet to draw a droplet of a fluid from the fluid inlet into the chamber when the fluid is applied to the fluid inlet and negative pressure is applied to the negative-pressure port. The fluid outlet is positioned relative to the fluid inlet to collect the droplet. The example device further includes a downstream microfluidic channel connected to the fluid outlet of the chamber. The downstream microfluidic channel communicates capillary action to the fluid outlet of the chamber. The capillary action resists flow of the fluid from the fluid outlet into the chamber induced by the negative pressure applied to the negative-pressure port.

公开(公告)号：US20170028713A1

公开(公告)日：2017-02-02

申请号：US15303998

申请日：2014-04-23

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

Inventor： Silam J CHOY ,  Peter James Fricke

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04541 ,  B41J2/04581 ,  B41J2/1404 ,  B41J2/14201 ,  B41J2/1433 ,  B41J2002/14491 ,  B41J2202/20

Abstract: In one example, a printhead assembly includes multiple printheads arranged along a line in a staggered configuration in which each printhead in a group of far printheads overlaps a printhead in a group of near printheads. Each printhead includes a pedestal, a printhead die mounted to the pedestal, an IC to drive fluid ejector elements in the printhead die, and a flex circuit. The IC is connected to the printhead die and mounted to the pedestal next to the die. The body of a flex circuit is connected to and covers the IC. The tail of each flex circuit from a far printhead extends past a pedestal in a near printhead.

Abstract translation: 在一个示例中，打印头组件包括沿着交错配置的线布置的多个打印头，其中一组远打印头中的每个打印头与一组近打印头中的打印头重叠。 每个打印头包括基座，安装到基座的打印头芯片，用于驱动打印头芯片中的流体喷射器元件的IC和柔性电路。 IC连接到打印头芯片，并安装在模具旁边的基座上。 柔性电路的主体连接并覆盖IC。 来自远打印头的每个柔性电路的尾部经过靠近打印头中的基座延伸。