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    Liquid delivery in an inkjet type dispenser
    1.
    发明授权
    Liquid delivery in an inkjet type dispenser 有权

    公开(公告)号：US11440330B2

    公开(公告)日：2022-09-13

    申请号：US16500396

    申请日：2018-07-08

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

    Inventor： Mark A Devries ,  Paul Mark Haines ,  Ronald J Ender

    IPC: B41J2/175 ,  B41J2/18

    Abstract: In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect a removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.

    FLUID CARTRIDGE
    2.
    发明申请
    FLUID CARTRIDGE 审中-公开

    公开(公告)号：US20200009874A1

    公开(公告)日：2020-01-09

    申请号：US16483289

    申请日：2017-02-10

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

    Inventor： Paul Mark Haines ,  Aik Liang Roy Teh ,  Suriyaprakash Saravanan ,  Anjan Prabhat Pattathil

    IPC: B41J2/175

    Abstract: The subject matter discloses a fluid cartridge comprising a container to hold a predetermined volume of fluid, and a lid for closing the container. The lid comprises a valve-recess and an inlet valve in the valve-recess to transfer a volume of a replacement fluid in the container for replacing depleted volume of fluid in the container. A rocker valve is pivoted in the valve-recess to cover the inlet valve during a regulation phase. The rocker valve is to open the inlet valve during an actuation phase to allow the replacement fluid to enter the container. A spring element is movably disposed on the rocker valve to control actuation of the rocker valve for opening and closing the inlet valve. The spring element slides across the rocker valve, from a regulation zone of the rocker valve to an actuation zone of the rocker valve, to open the inlet valve.

    Fluid ejection and circulation
    6.
    发明授权
    Fluid ejection and circulation 有权

    公开(公告)号：US11667130B2

    公开(公告)日：2023-06-06

    申请号：US17416434

    申请日：2019-04-30

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

    Inventor： Paul Mark Haines ,  Angela W. Bakkom ,  Anjan Prabhat Pattathil

    IPC: B41J2/18 ,  B41J2/175

    CPC classification number: B41J2/18 ,  B41J2/17513 ,  B41J2/17556 ,  B41J2/17563

    Abstract: A fluid ejection and circulation apparatus may include a fluid ejection device, a filter to filter fluid supplied to the fluid ejection device and a pressure regulator. The pressure regulator may include a fluid chamber having a fluid port and a first port extending from the fluid chamber to the filter. The pressure regulator may further include a valve to open and close the fluid port and a compliant chamber within the fluid chamber. The compliant chamber is to undergo different inflation levels in response to fluid chamber pressure. The valve is to open and close the fluid port in response to changes in an inflation level of the compliant chamber. The fluid chamber comprises a second port cooperating with the first port to form a circulation path through the fluid chamber that is directed away from the filter.

    LIQUID DELIVERY IN AN INKJET TYPE DISPENSER
    7.
    发明申请
    LIQUID DELIVERY IN AN INKJET TYPE DISPENSER 有权

    公开(公告)号：US20210323314A1

    公开(公告)日：2021-10-21

    申请号：US16500396

    申请日：2018-07-08

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

    Inventor： Mark A Devries ,  Paul Mark Haines ,  Ronald J Ender

    IPC: B41J2/175

    Abstract: In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect Na removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.

    Rocker valve
    9.
    发明授权
    Rocker valve 有权

    公开(公告)号：US10596821B2

    公开(公告)日：2020-03-24

    申请号：US16092849

    申请日：2016-04-21

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

    Inventor： Paul Mark Haines ,  Mark A. Devries ,  John L. Taylor

    IPC: B41J2/175 ,  B41J29/38

    Abstract: A rocker valve includes a number of rails to transitionally connect an arm of a spring to the rocker valve such that the arm of the spring transitions across the rocker valve to actuate the rocker valve, a first side of the rocker valve to selectively engage with a valve seat based on a position of the arm of the spring relative to the first side of the rocker valve, and a number of pivot arms to pivot the rocker valve between a closed position and an open position such that the first side of the rocker valve selectively engages with the valve seat to regulate pressure inside a print head assembly.

    Ink supply tanks
    10.
    发明授权
    Ink supply tanks 有权

    公开(公告)号：US12043036B2

    公开(公告)日：2024-07-23

    申请号：US17927120

    申请日：2020-05-27

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

    Inventor： William Scott Osborne ,  Kundan Singh ,  Paul Mark Haines ,  Sean Bertles

    IPC: B41J2/175

    CPC classification number: B41J2/17513 ,  B41J2/17509 ,  B41J2/17566 ,  B41J2/17596

    Abstract: The present disclosure is drawn to an ink supply tank for a printer. The ink supply tank includes a main chamber to supply a printer with ink. The main chamber includes a fill port to receive ink during filling and an exchange port to release the ink. A chamber separator device is configured with a fill surface and a vent port. An overflow chamber can be configured with a vent to pass air into the overflow chamber, a first portion of air in the overflow chamber passes through the vent port of the chamber separator device to a feeder chamber to replace a second portion of ink leaving the ink supply tank to feed a print head and the vent port of the chamber separator device to pass a third portion of ink and a second portion of air from the feeder chamber to the overflow chamber.

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