Laser ablated filter
    2.
    发明授权

    公开(公告)号:US06464347B2

    公开(公告)日:2002-10-15

    申请号:US09727202

    申请日:2000-11-30

    摘要: A filter structure having a plurality of pores through the structure each of the pores having a cross section with a length (L) and a width (W) wherein the dimension of L is greater than the dimension of W. The filter can be used with an improved ink jet printhead having an ink inlet in one of its surfaces, a plurality of nozzles, individual channels connecting the nozzles to an internal ink supplying manifold, the manifold being supplied ink through the ink inlet, and selectively addressable heating elements for expelling ink droplets, the improved ink jet printhead comprising a substantially flat filter having predetermined dimensions and being bonded to the printhead containing the ink inlet, the filter having a plurality of pores, therethrough, each of the pores having a cross section with a length=L and a width=W, wherein the dimension of L is greater than the dimension of W. Also disclosed is a method for fabricating a filter element comprising the steps of positioning a thin polymer film in the output radiation path of an ablating laser, and controlling the laser output so that a plurality of pores are formed in portions of the polymer film, each of the pores having a cross section with a length (L) and a width (W), wherein the dimension of L is greater than the dimension of W.

    Thermal ink jet printhead and process for the preparation thereof
    4.
    发明授权
    Thermal ink jet printhead and process for the preparation thereof 失效
    热喷墨打印头及其制备方法

    公开(公告)号:US06260956B1

    公开(公告)日:2001-07-17

    申请号:US09120746

    申请日:1998-07-23

    IPC分类号: B41J204

    摘要: Disclosed is an ink jet printhead which comprises (i) an upper substrate with a set of parallel grooves for subsequent use as ink channels and a recess for subsequent use as a manifold, the grooves being open at one end for serving as droplet emitting nozzles, and (ii) a lower substrate in which one surface thereof has an array of heating elements and addressing electrodes formed thereon, said lower substrate having an insulative layer deposited on the surface thereof and over the heating elements and addressing electrodes and patterned to form recesses therethrough to expose the heating elements and terminal ends of the addressing electrodes, the upper and lower substrates being aligned, mated, and bonded together to form the printhead with the grooves in the upper substrate being aligned with the heating elements in the lower substrate to form droplet emitting nozzles, said upper substrate comprising a material formed by crosslinking or chain extending a polymer of formula I or II.

    摘要翻译: 公开了一种喷墨打印头,其包括(i)具有一组平行凹槽以用于随后用作油墨通道的上基板和用于随后用作歧管的凹槽,所述凹槽在一端开口以用作液滴发射喷嘴, 和(ii)下基板,其中一个表面具有形成在其上的加热元件和寻址电极的阵列,所述下基板具有沉积在其表面上的绝热层,并且在加热元件和寻址电极之上并且被图案化以形成通过其中的凹槽 为了露出寻址电极的加热元件和末端,上基板和下基板对准,配合和结合在一起以形成打印头,上基板中的凹槽与下基板中的加热元件对准以形成液滴 所述上基板包括通过交联或链延长式I或II的聚合物形成的材料。

    Moisture leakage resistant capping surface for ink jet printhead
    5.
    发明授权
    Moisture leakage resistant capping surface for ink jet printhead 失效
    用于喷墨打印头的防潮漏水顶盖表面

    公开(公告)号:US5333007A

    公开(公告)日:1994-07-26

    申请号:US116816

    申请日:1993-08-11

    IPC分类号: B41J2/05 B41J2/165 G01D15/16

    CPC分类号: B41J2/16508 Y10T29/49401

    摘要: A printhead with a printhead die, an ink manifold and heat sink substrate has a continuous sealing surface surrounding the printhead die which is formed by the ink manifold, heat sink substrate and filler material disposed therebetween. The filler material acts as caulking to eliminate gaps around the printhead die, particularly between the ink manifold and heat sink substrate, and to provide a smooth surface for abutment with a capping member. A fluid-tight seal is obtained between the capping member and the continuous sealing surface on the printhead, thus preventing the drying out of ink in the nozzles through evaporation of volatile ink components. In some priming nozzle configurations, the leaktight seal also facilitates priming of the printhead.

    摘要翻译: 具有打印头芯片,墨水歧管和散热器基板的打印头具有围绕打印头芯片的连续密封表面,该密封表面由墨水歧管,散热基板和设置在其间的填充材料形成。 填充材料用作填缝以消除打印头芯片周围的间隙,特别是在墨水歧管和散热器基板之间,并且提供用于与封盖构件邻接的光滑表面。 在封盖构件和打印头上的连续密封表面之间获得流体密封,从而通过挥发性油墨组分的蒸发来防止喷嘴中的油墨干燥。 在一些起动喷嘴构造中,密封密封件还有助于打印头的启动。

    Efficient fluid filtering device and an ink jet printhead including the same
    6.
    发明授权
    Efficient fluid filtering device and an ink jet printhead including the same 有权
    有效的流体过滤装置和包括其的喷墨打印头

    公开(公告)号:US06199980B1

    公开(公告)日:2001-03-13

    申请号:US09431056

    申请日:1999-11-01

    IPC分类号: B41J2175

    摘要: An efficient fluid filtering device is provided for filtering unwanted contaminants from flowing fluid, such as ink flowing into an ink jet printhead. The efficient fluid filtering device includes a generally flat member having a first side and a second side, and a series of fluid flow holes formed through the flat member from the first side to the second side. Importantly, the efficient fluid filtering device also has a series of pillar members, including pillar members defining a trough portion around each fluid flow hole. The pillar members and the trough portions are arranged around each hole so as to efficiently prevent bubbles and contaminants in flowing fluid from impeding fluid flow from the first side through to the second side.

    摘要翻译: 提供了一种有效的流体过滤装置,用于从流动的流体(例如流入喷墨打印头的墨水)中过滤不需要的污染物。 有效的流体过滤装置包括具有第一侧和第二侧的大致平坦的构件,以及从第一侧到第二侧通过平坦构件形成的一系列流体流动孔。 重要的是,有效的流体过滤装置还具有一系列支柱构件,其包括限定围绕每个流体流动孔的槽部的柱构件。 支柱构件和槽部布置在每个孔周围,以有效地防止流动流体中的气泡和污染物阻碍流体从第一侧向第二侧流动。

    Method of operating an ultrasonic transmitter and receiver
    7.
    发明授权
    Method of operating an ultrasonic transmitter and receiver 有权
    操作超声波发射器和接收器的方法

    公开(公告)号:US08667846B2

    公开(公告)日:2014-03-11

    申请号:US13089524

    申请日:2011-04-19

    IPC分类号: G01N29/04

    摘要: Operating an ultrasonic transmitter and receiver includes providing a MEMS composite transducer. The MEMS composite transducer includes a substrate. Portions of the substrate define an outer boundary of a cavity. A first MEMS transducing member includes a first size. A first portion of the first MEMS transducing member is anchored to the substrate. A second portion of the first MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A second MEMS transducing member includes a second size smaller than the first size of the first MEMS transducing member. A first portion of the second MEMS transducing member is anchored to the substrate. A second portion of the second MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A compliant membrane is positioned in contact with the first and second MEMS transducing members. A first portion of the compliant membrane covers the first and second MEMS transducing members. A second portion of the compliant membrane is anchored to the substrate. Electrical pulses are sent to the first MEMS transducing member which causes the first MEMS transducing member and the compliant membrane to vibrate. The vibrations of the first MEMS transducing member and the compliant membrane are transmitted to an object. Echo signals are received from the object. The received echo signals are converted into electrical signals by the second MEMS transducing member.

    摘要翻译: 操作超声波发射器和接收器包括提供MEMS复合传感器。 MEMS复合传感器包括基板。 基板的一部分限定了空腔的外边界。 第一MEMS转换构件包括第一尺寸。 第一MEMS转换构件的第一部分被锚固到基底。 第一MEMS转换构件的第二部分在空腔的至少一部分上延伸并且相对于空腔自由移动。 第二MEMS转换构件包括小于第一MEMS转换构件的第一尺寸的第二尺寸。 第二MEMS转换构件的第一部分被锚固到基底。 第二MEMS转换构件的第二部分在空腔的至少一部分上延伸并且相对于空腔自由移动。 柔性膜定位成与第一和第二MEMS转导构件接触。 柔性膜的第一部分覆盖第一和第二MEMS转导构件。 顺应性膜的第二部分锚定到基底。 电脉冲被发送到第一MEMS转换构件,这导致第一MEMS换能构件和柔性膜振动。 第一MEMS转换构件和柔性膜的振动被传送到物体。 从对象接收回波信号。 所接收的回波信号由第二MEMS转换构件转换成电信号。

    Orientation of air-permeable membrane in inkjet printhead
    8.
    发明授权
    Orientation of air-permeable membrane in inkjet printhead 有权
    喷墨打印头中透气膜的方向

    公开(公告)号:US08277034B2

    公开(公告)日:2012-10-02

    申请号:US12750749

    申请日:2010-03-31

    IPC分类号: B41J2/19

    摘要: An inkjet printhead assembly for use in an inkjet printer, the inkjet printhead assembly includes an array of nozzles disposed along a nozzle array direction; an ink chamber including an ink outlet that is fluidly connected to the array of nozzles; and an air-permeable membrane positioned in the ink chamber at an angle that is inclined relative to the nozzle array direction.

    摘要翻译: 一种用于喷墨打印机的喷墨打印头组件,所述喷墨打印头组件包括沿着喷嘴阵列方向设置的喷嘴阵列; 墨水室,其包括流体地连接到所述喷嘴阵列的墨出口; 以及以相对于喷嘴排列方向倾斜的角度定位在墨室中的透气膜。

    Position detection with two-dimensional sensor in printer
    9.
    发明授权
    Position detection with two-dimensional sensor in printer 有权
    位置检测与二维传感器在打印机

    公开(公告)号:US08251475B2

    公开(公告)日:2012-08-28

    申请号:US12636806

    申请日:2009-12-14

    IPC分类号: B41J29/38

    摘要: An inkjet printing system includes a roller for advancing a recording medium along a recording medium advance direction; an inkjet printhead that ejects drops of ink; a carriage for moving the printhead along a carriage scan direction that is substantially perpendicular or perpendicular to the recording medium advance direction; one or more motors for driving the roller and moving the carriage; a two-dimensional sensor mounted on the carriage which two-dimensional sensor is configured to sense either: a) the recording medium; b) the roller and the recording medium; or c) the roller; and a controller for receiving electrical signals from the two-dimensional sensor and for controlling the one or more motors.

    摘要翻译: 喷墨打印系统包括:用于沿着记录介质前进方向前进记录介质的辊; 喷墨打印头,喷墨墨滴; 用于沿着大致垂直于或垂直于记录介质前进方向的滑架扫描方向移动打印头的滑架; 一个或多个用于驱动滚筒和移动滑架的马达; 安装在托架上的二维传感器,二维传感器被配置为感测:a)记录介质; b)辊和记录介质; 或c)滚筒; 以及用于从二维传感器接收电信号并用于控制一个或多个电动机的控制器。

    Methods for making internal die filters with multiple passageways which are fluidically in parallel
    10.
    发明授权
    Methods for making internal die filters with multiple passageways which are fluidically in parallel 有权
    用于制造具有多个流体平行的多个通道的内部模具过滤器的方法

    公开(公告)号:US07922924B2

    公开(公告)日:2011-04-12

    申请号:US11987492

    申请日:2007-11-30

    申请人: Gary A. Kneezel

    发明人: Gary A. Kneezel

    IPC分类号: B31D3/00

    摘要: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surface(s) of the upper and/or lower substrates, and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.

    摘要翻译: 内部滤波器包括下基板和上基板。 通过将凹槽蚀刻到上基板和/或下基板的表面中和/或在一个或多个中间层中形成流体通道。 通过蚀刻流体连接流体通道的第二凹槽来形成在流体通道之间延伸的过滤器孔。 可以实施两组或更多套一个或两个中间层,以提供额外的过滤通道和/或孔。 每组可以连接到单独的流体源和/或单独的微流体装置。 在另一个内部过滤器中,入口和出口通道和过滤器孔形成在相同的上或下基板上。 入口和出口通道部分地形成在第一步骤中。 在第二步骤中,入口和出口通道在形成过滤器孔的同时完成。