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    SUBSTRATES AND LIDS WITH OVERFLOW CHANNELS
    2.
    发明申请
    SUBSTRATES AND LIDS WITH OVERFLOW CHANNELS 有权

    公开(公告)号：US20220250389A1

    公开(公告)日：2022-08-11

    申请号：US16606484

    申请日：2017-11-10

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

    Inventor： Si-lam Choy

    IPC: B41J2/175

    Abstract: A fluid delivery system, in an example, may include a substrate and a lid coupled to a first side of the substrate wherein the substrate comprises a number of fluidic feed slots fluidically coupling the substrate to a die coupled to a second surface of the substrate and wherein the lid includes at least one main chamber to house at least one type of fluid, at least one overflow reservoir with the overflow reservoir fluidically coupled to the main chamber via an overflow channel, and wherein the overflow channel comprises a capillary pinch point to hold an amount of printing fluid within the main chamber.

    Bubblers to provide sequential fluid flow
    4.
    发明授权
    Bubblers to provide sequential fluid flow 有权

    公开(公告)号：US11207894B2

    公开(公告)日：2021-12-28

    申请号：US17045208

    申请日：2018-04-06

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

    Inventor： Si-lam Choy

    IPC: B41J2/175 ,  B41J2/045

    Abstract: An example device includes a first chamber to contain a first fluid and a second chamber to contain a second fluid. The first chamber includes a first fluid outlet, and a first bubbler to ingest bubbles into the first chamber when pressure in the first chamber overcomes a first bubble pressure of the first bubbler. The second chamber includes a second fluid outlet, and a second bubbler to ingest bubbles into the second chamber when pressure in the first chamber overcomes a second bubble pressure of the second bubbler. An outlet node is fluidly connected to the first fluid outlet and the second fluid outlet. The outlet node draws the first fluid from the first chamber when the first bubbler ingests bubbles, and sequentially draws the second fluid from the second chamber when the second bubbler ingests bubbles.

    FLUIDIC DIES
    6.
    发明申请
    FLUIDIC DIES 审中-公开

    公开(公告)号：US20200238699A1

    公开(公告)日：2020-07-30

    申请号：US16634926

    申请日：2017-09-20

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

    Inventor： Si-lam Choy ,  Chien-Hua Chen ,  Michael W Cumbie

    IPC: B41J2/14

    Abstract: A fluidic die includes a fluid channel layer including at least one fluid channel defined along a length of the fluid ejection device. The fluidic die also includes an interposer layer coupled to the fluid channel layer. The interposer layer includes a number of inlet ports defined in the interposer layer to fluidically couple the at least one channel layer to a fluid source, and a number of outlet ports defined in the interposer layer to fluidically couple the at least one channel layer to the fluid source.

    FLUIDIC EJECTION DIES WITH ENCLOSED CROSS-CHANNELS
    7.
    发明申请
    FLUIDIC EJECTION DIES WITH ENCLOSED CROSS-CHANNELS 审中-公开

    公开(公告)号：US20200164647A1

    公开(公告)日：2020-05-28

    申请号：US16630020

    申请日：2017-07-31

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

    Inventor： Si-lam Choy ,  Michael W Cumbie ,  Chien-Hua Chen ,  Jeffrey R Pollard

    IPC: B41J2/14 ,  B41J2/16

    Abstract: In one example in accordance with the present disclosure, a fluidic ejection device is described. The device includes a fluidic ejection die embedded in a moldable material. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages. The device also includes the moldable material which includes supply slots to deliver fluid to and from the fluidic ejection die. A carrier substrate of the device supports the fluidic ejection die and moldable material.

    Biological fluid dilution devices
    9.
    发明授权
    Biological fluid dilution devices 有权

    公开(公告)号：US11441977B2

    公开(公告)日：2022-09-13

    申请号：US16492267

    申请日：2017-04-03

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

    Inventor： Gary G. Lutnesky ,  Si-lam Choy

    IPC: G01N1/38 ,  B01L3/00

    Abstract: A biological fluid dilution device can include a syringe body including a diluent chamber at a front end of the syringe body and a piston tube at a rear end of the syringe body. The diluent chamber can be partially filled with a diluent fluid. A moveable piston can be slidably engaged in the piston tube and form a fluid-tight seal with an interior surface of the piston tube. The moveable piston can include a metering groove to contain a precise volume of a biological fluid between the metering groove and the interior surface of the piston tube. A biological fluid inlet on the piston tube can be capable of delivering the biological fluid to the metering groove. The moveable piston can be slidable toward to diluent chamber to introduce the biological fluid in the metering groove into the diluent chamber.

    FLUID EJECTION ASSEMBLIES
    10.
    发明申请
    FLUID EJECTION ASSEMBLIES 有权

    公开(公告)号：US20210187957A1

    公开(公告)日：2021-06-24

    申请号：US16758061

    申请日：2017-11-02

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

    Inventor： Si-lam Choy ,  Michael W. Cumbie

    IPC: B41J2/175 ,  B41J2/14

    Abstract: A fluid ejection assembly includes a fluid ejection die, and a body supporting the fluid ejection die, with the body having a fluid chamber communicated with the fluid ejection die and including a receptacle to receive a removable fluid supply, with the receptacle having a fluid port communicated with the fluid chamber through the body.

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