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    MEMS fluid sensor
    4.
    发明授权
    MEMS fluid sensor 有权
    MEMS流体传感器

    公开(公告)号：US08356885B2

    公开(公告)日：2013-01-22

    申请号：US12652683

    申请日：2010-01-05

    申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi

    发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi

    IPC分类号： B41J2/05

    CPC分类号： B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2002/14491 ,  B41J2202/20

    摘要： A fluid sensor for detecting fluid in a chamber, has a MEMS sensing element of conductive material with a resistance that is a function of temperature, and electrical contacts for connection to an electrical power source for heating the sensing element with an electrical signal, so that control circuitry can measure the current passing through the sensing element during heating of the sensing element; and determine the temperature of the sensing element from the known applied voltage, the measured current and the known relationship between the current, resistance and temperature. As the temperature of the element will be greater if it is in the presence of gas rather than liquid, the sensor determines if there is liquid or gas in the chamber. This is particularly useful to detect if the chambers of an inkjet printhead are primed with ink.

    摘要翻译： 用于检测腔室中的流体的流体传感器具有导电材料的MEMS感测元件，其具有作为温度的函数的电阻，以及用于连接到用于利用电信号加热感测元件的电源的电触头，使得 控制电路可以在感测元件的加热期间测量通过感测元件的电流; 并根据已知的施加电压，测量的电流和电流，电阻和温度之间的已知关系确定感测元件的温度。 如果元件的温度在气体存在而不是液体的情况下会更大，则传感器确定腔室中是否存在液体或气体。 这对于检测喷墨打印头的腔室是否涂有油墨特别有用。

    Thermal ink jet printhead
    7.
    发明授权
    Thermal ink jet printhead 有权
    热喷墨打印头

    公开(公告)号：US08087751B2

    公开(公告)日：2012-01-03

    申请号：US12778119

    申请日：2010-05-11

    申请人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

    发明人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

    IPC分类号： B41J2/14 ,  B41J2/16

    CPC分类号： B41J2/14427 ,  B41J2/04518 ,  B41J2/0452 ,  B41J2/04555 ,  B41J2/0457 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1408 ,  B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/11 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/21

    摘要： An ink jet printhead includes a plurality of nozzles each having a nozzle aperture; a plurality of bubble forming chambers, each corresponding respectively to one of the plurality of nozzles; an inlet for communicating printing fluid between the nozzle aperture and a printing fluid supply, the inlet and the nozzle aperture being aligned along a common central axis; and a heater element disposed in each of the bubble forming chambers. Each heater element has two bubble nucleation regions suspended within the bubble forming chamber in a plane parallel to that of the nozzle aperture. The two bubble nucleation regions are laterally offset from the central axis, such that the lateral offset of one of the bubble nucleation regions is equal and opposite to the lateral offset of the other bubble nucleation region. The bubble nucleation regions are spaced from each other such that bubbles nucleated at each will grow until they unite to form the gas bubble that causes the ejection of a drop of ejectable liquid.

    摘要翻译： 喷墨打印头包括多个喷嘴，每个喷嘴具有喷嘴孔; 多个气泡形成室，分别对应于所述多个喷嘴中的一个喷嘴; 用于在喷嘴孔和印刷液体供应源之间连通打印流体的入口，入口和喷嘴孔沿共同的中心轴对齐; 以及设置在每个气泡形成室中的加热器元件。 每个加热器元件具有悬浮在气泡形成室内的平行于喷嘴孔的平面的两个气泡成核区域。 两个气泡成核区域从中心轴线横向偏移，使得一个气泡成核区域的横向偏移量与另一个气泡成核区域的横向偏移量相等。 气泡成核区域彼此间隔开，使得在每个气泡成核的气泡将生长直到它们结合形成导致喷射液滴的气泡。

    MEMS integrated circuit comprising microfluidic diaphragm valve
    8.
    发明授权
    MEMS integrated circuit comprising microfluidic diaphragm valve 失效
    MEMS集成电路包括微流体隔膜阀

    公开(公告)号：US08062612B2

    公开(公告)日：2011-11-22

    申请号：US12142789

    申请日：2008-06-20

    申请人： Gregory John McAvoy ,  Emma Rose Kerr ,  Kia Silverbrook

    发明人： Gregory John McAvoy ,  Emma Rose Kerr ,  Kia Silverbrook

    IPC分类号： F16K7/16

    CPC分类号： F16K99/0001 ,  F16K99/0015 ,  F16K99/0044 ,  F16K2099/0092 ,  F16K2099/0094 ,  Y10T137/1624 ,  Y10T137/2224 ,  Y10T137/6606 ,  Y10T137/87096

    摘要： A MEMS integrated circuit comprising one or more microfluidic diaphragm valves and control circuitry for the valves. Each valve comprises: an inlet port; an outlet port; a weir positioned between the inlet and outlet ports, the weir having a sealing surface; a diaphragm membrane for sealing engagement with the sealing surface; and a thermal bend actuator for moving the diaphragm membrane between a closed position in which the membrane is sealingly engaged with the sealing surface and an open position in which the membrane is disengaged from the sealing surface. The control circuitry is configured to control actuation of the actuator so as to control opening and closing of the valve.

    摘要翻译： MEMS集成电路包括一个或多个微流体隔膜阀和用于阀的控制电路。 每个阀包括：入口; 出口口 位于入口和出口之间的堰，堰具有密封表面; 用于与密封表面密封接合的隔膜; 以及热弯曲致动器，其用于在隔膜与密封表面密封接合的关闭位置和膜与密封表面脱离的打开位置之间移动隔膜。 控制电路被配置为控制致动器的致动以控制阀的打开和关闭。

    Printhead Assembly Employing Modular Printheads And Common Substrate Channel
    10.
    发明申请
    Printhead Assembly Employing Modular Printheads And Common Substrate Channel 审中-公开
    使用模块化打印头和普通基板通道的打印头组件

    公开(公告)号：US20110228000A1

    公开(公告)日：2011-09-22

    申请号：US13117097

    申请日：2011-05-26

    申请人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

    发明人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

    IPC分类号： B41J2/145

    CPC分类号： B41J2/1601 ,  B41J2/1412 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1642 ,  B41J11/0095 ,  B41J13/103 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/20

    摘要： A printhead assembly for a pagewidth printer includes a substrate channel; a plurality of printhead modules positioned in the channel to form a pagewidth printhead module assembly; an ink hose positioned within the substrate channel to supply the printhead modules with ink; an extrusion for housing bus bars providing electrical power to the printhead modules; a cover plate securing a flex printed circuit board (PCB) in the assembly, the PCB forming a data bus to the printhead modules; and compressible conductive strips provided between the busbars abutting contacts on an upper side of parts of the flex PCB. The substrate channel defines a series of groups of holes through which the printhead modules are supplied with differently colored inks. The hose defines parallel channels extending a length of the hose, the channels connected to ink containers at one end and sealed with a channel extrusion cap at the other end.

    摘要翻译： 用于页宽打印机的打印头组件包括基板通道; 定位在通道中的多个打印头模块以形成页宽打印头模块组件; 位于衬底通道内的墨水软管，用于向打印头模块供应墨水; 用于容纳母线的挤出物，为打印头模块提供电力; 将柔性印刷电路板（PCB）固定在组件中的盖板，PCB形成到打印头模块的数据总线; 以及设置在汇流条之间的压缩导电条，其邻接柔性PCB的部分的上侧上的接触。 衬底通道限定一系列孔，打印头模块通过这些孔组供给不同颜色的油墨。 软管限定延伸一段长度的软管的平行通道，通道在一端连接到墨水容器，并在另一端用通道挤出盖密封。