公开(公告)号：US08534818B2

公开(公告)日：2013-09-17

申请号：US12767822

申请日：2010-04-27

申请人： Rajesh V. Mehta ,  Ali G. Lopez ,  Kam C. Ng ,  Hrishikesh V. Panchawagh

发明人： Rajesh V. Mehta ,  Ali G. Lopez ,  Kam C. Ng ,  Hrishikesh V. Panchawagh

IPC分类号： B41J2/175

CPC分类号： B41J2/155 ,  B41J2/03 ,  B41J2/16 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2002/031 ,  B41J2002/14403

摘要： A printhead includes a nozzle plate, a filter, and a plurality of walls. Portions of the nozzle plate define a plurality of nozzles. The filter, for example, a filter membrane, includes a plurality of pores grouped in a plurality of pore clusters. Each of the plurality of walls extends from the nozzle plate to the filter membrane to define a plurality of liquid chambers positioned between the nozzle plate and the filter membrane. Each liquid chamber of the plurality of liquid chambers is in fluid communication with a respective one of the plurality of nozzles. Each liquid chamber of the plurality of liquid chambers is in fluid communication with the plurality of pores of a respective one of the plurality of pore clusters. The respective one of the plurality of pore clusters includes two pore sub-clusters spaced apart from each other by a non-porous portion of the filter membrane.

摘要翻译： 打印头包括喷嘴板，过滤器和多个壁。 喷嘴板的一部分限定多个喷嘴。 过滤器，例如过滤膜，包括分组在多个孔群中的多个孔。 多个壁中的每一个从喷嘴板延伸到过滤膜以限定位于喷嘴板和过滤膜之间的多个液体室。 多个液体室中的每个液体室与多个喷嘴中的相应一个流体连通。 多个液体室中的每个液体室与多个孔群中的相应一个的多个孔流体连通。 多个孔群中的相应一个包括通过过滤膜的无孔部分彼此间隔开的两个孔子群。

公开(公告)号：US20110261123A1

公开(公告)日：2011-10-27

申请号：US12767822

申请日：2010-04-27

申请人： Rajesh V. Mehta ,  Ali G. Lopez ,  Kam C. Ng ,  Hrishikesh V. Panchawagh

发明人： Rajesh V. Mehta ,  Ali G. Lopez ,  Kam C. Ng ,  Hrishikesh V. Panchawagh

IPC分类号： B41J2/175

CPC分类号： B41J2/155 ,  B41J2/03 ,  B41J2/16 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2002/031 ,  B41J2002/14403

摘要： A printhead includes a nozzle plate, a filter, and a plurality of walls. Portions of the nozzle plate define a plurality of nozzles. The filter, for example, a filter membrane, includes a plurality of pores grouped in a plurality of pore clusters. Each of the plurality of walls extends from the nozzle plate to the filter membrane to define a plurality of liquid chambers positioned between the nozzle plate and the filter membrane. Each liquid chamber of the plurality of liquid chambers is in fluid communication with a respective one of the plurality of nozzles. Each liquid chamber of the plurality of liquid chambers is in fluid communication with the plurality of pores of a respective one of the plurality of pore clusters. The respective one of the plurality of pore clusters includes two pore sub-clusters spaced apart from each other by a non-porous portion of the filter membrane.

摘要翻译： 打印头包括喷嘴板，过滤器和多个壁。 喷嘴板的一部分限定多个喷嘴。 过滤器，例如过滤膜，包括分组在多个孔群中的多个孔。 多个壁中的每一个从喷嘴板延伸到过滤膜以限定位于喷嘴板和过滤膜之间的多个液体室。 多个液体室中的每个液体室与多个喷嘴中的相应一个流体连通。 多个液体室中的每个液体室与多个孔群中的相应一个的多个孔流体连通。 多个孔群中的相应一个包括通过过滤膜的无孔部分彼此间隔开的两个孔子群。

公开(公告)号：US20110073788A1

公开(公告)日：2011-03-31

申请号：US12570312

申请日：2009-09-30

申请人： Michael A. Marcus ,  Rajesh V. Mehta ,  Kam C. Ng

发明人： Michael A. Marcus ,  Rajesh V. Mehta ,  Kam C. Ng

IPC分类号： F16K31/12 ,  F16K31/02

CPC分类号： F16K99/0001 ,  F16K99/0007 ,  F16K99/0034 ,  F16K99/0044 ,  F16K99/0048

摘要： A micro-electromechanical device for controlling compressed fluid flow is provided. A chamber includes a fluid flow inlet port, a high pressure region exceeding 30 bar, and a fluid flow outlet port. A moveable micro-electromechanical valve is positioned to contact the fluid flow outlet port when the moveable micro-electromechanical valve is in a first position. An electrical connection to the moveable micro-electromechanical valve provides an electrical pulse train to the moveable micro-electromechanical valve to actuate the valve at a rate of 10 KHz or more to move the valve in order to control fluid communication between the high pressure region and a low pressure region downstream from the fluid flow outlet port.

摘要翻译： 提供了一种用于控制压缩流体流动的微机电装置。 腔室包括流体流入口，高压区域超过30巴，以及流体流出口。 当可移动的微机电阀处于第一位置时，可移动的微机电阀定位成接触流体流出口。 与可移动的微机电阀的电连接提供到可移动微机电阀的电脉冲串，以10KHz或更高的速率驱动阀，以便移动阀，以便控制高压区和 在流体出口端口下游的低压区域。

公开(公告)号：US20100259586A1

公开(公告)日：2010-10-14

申请号：US12420846

申请日：2009-04-09

申请人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

发明人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

IPC分类号： B41J2/09

CPC分类号： B41J2/07 ,  B41J2/09 ,  B41J2/095

摘要： A device and method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, the fluid control surface including a pattern; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device using the pattern of the fluid control surface that, when activated, causes adjacent fluid drops to merge or coalesce while the fluid is in contact with the pattern of the fluid control device such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device.

摘要翻译： 提供了一种控制流体流动的装置和方法。 该方法包括提供包括流体流动特征的移动流体; 提供包括流体控制表面的流体控制装置，所述流体控制表面包括图案; 使流体接触流体控制装置的流体控制表面; 并且使用流体控制表面的图案使流体与流体控制装置的流体控制表面相互作用，当流体控制表面被激活时，当流体与流体控制的图案接触时，相邻的流体液滴合并或聚结 装置，使得与流体控制装置的流体控制表面相互作用之后的流体的流体流动特性不同于在与流体控制装置的流体控制表面相互作用之前的流体的流体流动特性。

公开(公告)号：US08746863B1

公开(公告)日：2014-06-10

申请号：US13792329

申请日：2013-03-11

申请人： Thomas W. Palone ,  Kathleen M. Vaeth ,  Kam C. Ng

发明人： Thomas W. Palone ,  Kathleen M. Vaeth ,  Kam C. Ng

IPC分类号： B41J2/185

CPC分类号： B41J2/185

摘要： A printhead includes a jetting module, deflection mechanism, and catcher. The jetting module includes a linear array of nozzles having a pitch and extending along a length of the jetting module. The jetting module is configured to form drops travelling along a first path from liquid jets emitted from the nozzles. The deflection mechanism is configured to cause selected drops to deviate from the first path and begin travelling along a second path. The catcher, positioned to intercept drops travelling along one of the first and second paths, includes a drop contact surface and a liquid removal conduit connected in fluid communication by a Coanda surface including a radial surface having an array of grooves extending in the same direction as that of the nozzles. The array of grooves has a pitch that is greater than the pitch of the nozzle array.

摘要翻译： 打印头包括喷射模块，偏转机构和捕集器。 喷射模块包括具有间距并沿喷射模块的长度延伸的喷嘴的线性阵列。 喷射模块被构造成形成沿着从喷嘴喷射的液体射流沿着第一路径行进的液滴。 偏转机构被配置为使所选择的液滴偏离第一路径并且开始沿第二路径行进。 捕集器定位成拦截沿着第一和第二路径中的一个路线行进的液滴，包括液滴接触表面和液体去除管道，其通过柯恩达表面流体连通，包括径向表面，该径向表面具有沿与 那些喷嘴。 凹槽阵列的间距大于喷嘴阵列的间距。

公开(公告)号：US07946692B2

公开(公告)日：2011-05-24

申请号：US12420846

申请日：2009-04-09

申请人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

发明人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

IPC分类号： B41J2/09

CPC分类号： B41J2/07 ,  B41J2/09 ,  B41J2/095

摘要： A device and method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, the fluid control surface including a pattern; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device using the pattern of the fluid control surface that, when activated, causes adjacent fluid drops to merge or coalesce while the fluid is in contact with the pattern of the fluid control device such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device.

摘要翻译： 提供了一种控制流体流动的装置和方法。 该方法包括提供包括流体流动特征的移动流体; 提供包括流体控制表面的流体控制装置，所述流体控制表面包括图案; 使流体接触流体控制装置的流体控制表面; 并且使用流体控制表面的图案使流体与流体控制装置的流体控制表面相互作用，当流体控制表面被激活时，当流体与流体控制的图案接触时，相邻的流体液滴合并或聚结 装置，使得与流体控制装置的流体控制表面相互作用之后的流体的流体流动特性不同于在与流体控制装置的流体控制表面相互作用之前的流体的流体流动特性。

公开(公告)号：US20100258205A1

公开(公告)日：2010-10-14

申请号：US12420839

申请日：2009-04-09

申请人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

发明人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

IPC分类号： F16K21/04

CPC分类号： B41J2/07 ,  Y10T137/7837

摘要： A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface; providing a mechanism applies a force to the fluid to cause the fluid to temporarily contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device using the mechanism such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device.

摘要翻译： 提供了一种控制流体流动的装置和方法。 该方法包括提供包括流体流动特征的移动流体; 提供包括流体控制表面的流体控制装置; 提供机构对流体施加力以使流体临时接触流体控制装置的流体控制表面; 并且使用所述机构使流体与流体控制装置的流体控制表面相互作用，使得在与流体控制装置的流体控制表面相互作用之后流体的流体流动特性不同于流体的流体流动特性 在与流体控制装置的流体控制表面相互作用之前。

公开(公告)号：US20100258195A1

公开(公告)日：2010-10-14

申请号：US12420837

申请日：2009-04-09

申请人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

发明人： Gilbert A. Hawkins ,  Zhanjun Gao ,  Yonglin Xie ,  Edward P. Furlani ,  Kam C. Ng

IPC分类号： F17D3/00

CPC分类号： F17D1/14 ,  Y10T137/0324 ,  Y10T137/7837

摘要： A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, a portion of the fluid control surface being moveable; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device by moving the moveable portion of the fluid control surface while the fluid is in contact with the fluid control surface such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device depending on the position of the moveable portion of the fluid control surface.

摘要翻译： 提供了一种控制流体流动的装置和方法。 该方法包括提供包括流体流动特征的移动流体; 提供包括流体控制表面的流体控制装置，所述流体控制表面的一部分是可移动的; 使流体接触流体控制装置的流体控制表面; 并且当所述流体与所述流体控制表面接触时，通过移动所述流体控制表面的可移动部分，使所述流体与所述流体控制装置的流体控制表面相互作用，使得在与所述流体控制表面相互作用之后所述流体的流体流动特性 根据流体控制表面的可移动部分的位置，流体控制装置的流体控制表面不同于与流体控制装置的流体控制表面相互作用之前的流体的流体流动特性。

公开(公告)号：US5795512A

公开(公告)日：1998-08-18

申请号：US697746

申请日：1996-08-29

申请人： Jehuda Greener ,  Kam C. Ng

发明人： Jehuda Greener ,  Kam C. Ng

IPC分类号： B65H23/34 ,  G03C1/81 ,  G03C11/00 ,  B29C53/18

CPC分类号： B65H23/34 ,  G03C1/81 ,  G03C11/00 ,  G03C5/267

摘要： A method for reducing curl in a stored photographic film which aids in preventing serious difficulties with downstream film transport and handling of the film. The film, which has been stored as a roll wound on a first core or mandrel is unwound from the first core and wound onto a second core or mandrel in a first direction. The film is then unwound from the second core to yield a traveling web portion. The traveling web portion is preheated to a predetermined temperature while being continuously delivered to a housing. The film is wound onto a third core or mandrel located within the housing in a direction opposite the first direction where it is maintained at about the same predetermined temperature.

摘要翻译： 一种用于减少保存的照相胶片中的卷曲的方法，其有助于防止膜的下游胶片输送和处理的严重困难。 已经被卷绕在第一芯或心轴上的卷存储的薄膜从第一芯展开并在第一方向上卷绕到第二芯或心轴上。 然后将薄膜从第二芯展开，以产生行进的纤维网部分。 行进的腹板部分被预热到预定的温度，同时被连续输送到壳体。 该薄膜沿着与第一方向相反的方向卷绕在位于壳体内的第三芯或心轴上，在该方向上保持大约相同的预定温度。

公开(公告)号：US20130249983A1

公开(公告)日：2013-09-26

申请号：US13424422

申请日：2012-03-20

申请人： Michael A. Marcus ,  Hrishikesh V. Panchawagh ,  Shashishekar P. Adiga ,  Kam C. Ng

发明人： Michael A. Marcus ,  Hrishikesh V. Panchawagh ,  Shashishekar P. Adiga ,  Kam C. Ng

IPC分类号： B41J29/38

CPC分类号： B41J2/03 ,  B41J2/085 ,  B41J2/09 ,  B41J2/185 ,  B41J2002/032 ,  B41J2002/033 ,  B41J2202/02

摘要： A group timing delay device is provided to shift the timing of drop formation waveforms supplied to drop formation devices of nozzles of one of first and second groups so that print drops formed from nozzles of the first and second groups are not aligned relative to each other along a nozzle array direction. A charging device includes a common charge electrode associated with liquid jets formed from the nozzles of the first and second group and a source of varying electrical potential between the charge electrode and liquid jets. The source of varying electrical potential provides a charging waveform that is independent of print and non-print drop patterns. The charging device is synchronized with the drop formation device and the group timing delay device to produce a print drop charge state on print drops and a non-print drop charge state on non-print drops.

摘要翻译： 提供组定时延迟装置，用于移动提供给第一组和第二组之一的喷嘴的液滴形成装置的液滴形成波形的定时，使得由第一组和第二组的喷嘴形成的印刷液滴不沿着彼此对准 喷嘴阵列方向。 充电装置包括与从第一组和第二组的喷嘴形成的液体射流相关联的公共充电电极和在充电电极和液体射流之间具有变化的电势的源。 变化电位的来源提供了独立于打印和非打印丢失模式的充电波形。 充电装置与液滴形成装置和组定时延迟装置同步，以在打印液滴上产生打印液滴充电状态，并在非打印液滴上产生非打印液滴充电状态。