公开(公告)号：US08182068B2

公开(公告)日：2012-05-22

申请号：US12511138

申请日：2009-07-29

Applicant: Hrishikesh V. Panchawagh ,  Edward P. Furlani

Inventor： Hrishikesh V. Panchawagh ,  Edward P. Furlani

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/03 ,  B41J2002/031 ,  B41J2002/032

Abstract: A printhead includes a first nozzle bore, a liquid chamber, and a second nozzle bore. The liquid chamber is positioned between the first nozzle bore and the second nozzle bore and extends beyond the opening of the first nozzle bore. The first nozzle bore is in liquid communication with the second nozzle bore through the liquid chamber.

Abstract translation: 打印头包括第一喷嘴孔，液体室和第二喷嘴孔。 液体室位于第一喷嘴孔和第二喷嘴孔之间并且延伸超过第一喷嘴孔的开口。 第一喷嘴孔与通过液体室的第二喷嘴孔液体连通。

公开(公告)号：US20100259586A1

公开(公告)日：2010-10-14

申请号：US12420846

申请日：2009-04-09

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

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

IPC: B41J2/09

CPC classification number: B41J2/07 ,  B41J2/09 ,  B41J2/095

Abstract: 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.

Abstract translation: 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：US20090033723A1

公开(公告)日：2009-02-05

申请号：US11831156

申请日：2007-07-31

Applicant: Kathleen M. Vaeth ,  Ali G. Lopez ,  Edward P. Furlani

Inventor： Kathleen M. Vaeth ,  Ali G. Lopez ,  Edward P. Furlani

IPC: B41J2/09

CPC classification number: B41J2/09

Abstract: A printhead includes a droplet-forming heater operable in a first state to form droplets from a fluid stream having a first volume traveling along a path direction and in a second state to form droplets from the fluid stream having a second volume traveling along the path direction. A droplet deflector system is positioned relative to the droplet-forming heater, which applies a force to the droplets traveling along the path direction, whereby the droplets having the first volume diverge from the path direction by a greater extent than do the droplets having the second volume. A droplet-steering heater is adapted to selectively asymmetrically apply heat to the stream such that the path direction is changed.

Abstract translation: 打印头包括可在第一状态下操作的液滴形成加热器，以从具有沿路径方向行进的第一体积的流体流形成液滴，并且处于第二状态，从具有沿路径方向行进的第二体积的流体流形成液滴 。 液滴偏转器系统相对于液滴形成加热器定位，该液滴形成加热器对沿着路径方向行进的液滴施加力，由此具有第一体积的液滴比具有第二体积的液滴的路径方向更大程度地偏离 卷。 液滴转向加热器适于选择性地不对称地对流施加热量，使得路径方向改变。

公开(公告)号：US07405480B2

公开(公告)日：2008-07-29

申请号：US11020909

申请日：2004-12-22

Applicant: Edward P. Furlani ,  Richard W. Wien ,  Tabrez Y. Ebrahim ,  David L. Patton

Inventor： Edward P. Furlani ,  Richard W. Wien ,  Tabrez Y. Ebrahim ,  David L. Patton

IPC: H01L23/48

CPC classification number: H01L51/0097 ,  G02F1/133305 ,  G02F2203/60 ,  Y02E10/549

Abstract: A flexible electronic display device is provided comprising a substrate; an imaging layer zone; a transparent superstrate; and a thermal control layer. The device is able to resist thermal deformation caused by the heating generated by the operation of the display.

Abstract translation: 提供一种柔性电子显示装置，包括：基板; 成像层区; 透明的上衣; 和热控制层。 该装置能够抵抗由显示器的操作产生的加热引起的热变形。

公开(公告)号：US20080043062A1

公开(公告)日：2008-02-21

申请号：US11504960

申请日：2006-08-16

Applicant: Gilbert A. Hawkins ,  Siddhartha Ghosh ,  Christopher N. Delametter ,  Edward P. Furlani

Inventor： Gilbert A. Hawkins ,  Siddhartha Ghosh ,  Christopher N. Delametter ,  Edward P. Furlani

IPC: B41J2/05

CPC classification number: B41J2/03 ,  B41J2002/022

Abstract: A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore.

Abstract translation: 打印机包括打印头和液体源。 打印头包括喷嘴孔。 液体的压力足以通过喷嘴孔喷出液体柱。 液体有一个温度。 热调制器与喷嘴孔相关联。 热调制器可操作以在液体通过喷嘴孔喷出时瞬时降低液体的温度。

公开(公告)号：US06886920B2

公开(公告)日：2005-05-03

申请号：US10693162

申请日：2003-10-24

Applicant: David P. Trauernicht ,  Edward P. Furlani ,  John A. Lebens

Inventor： David P. Trauernicht ,  Edward P. Furlani ,  John A. Lebens

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/16 ,  B41J2/05

CPC classification number: B41J2/14427 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1639 ,  B41J2/1646 ,  B41J2/1648

Abstract: An apparatus for a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element extending from the base element and normally residing at a first position before activation. The cantilevered element includes a first layer constructed of an electrically resistive material, such as titanium aluminide, patterned to have a first resistor segment and a second resistor segment each extending from the base element; a coupling device that conducts electrical current serially between the first and second resistor segments; and a second layer constructed of a dielectric material having a low coefficient of thermal expansion and attached to the first layer. A first electrode connected to the first resistor segment and a second electrode connected to the second resistor segment are provided to apply an electrical voltage pulse between the first and second electrodes thereby causing an activation power density in the first and second resistor segments and a power density maximum within the coupling device resulting in a deflection of the cantilevered element to a second position and wherein the power density maximum is less than four times the activation power density. The coupling device may be formed as a segment in the first layer or in a third layer of an electrically active material. Methods of operating a liquid drop emitter having a thermal actuator are disclosed which avoid the generation of vapor bubbles.

Abstract translation: 公开了一种用于微机械装置的热致动器的装置，特别是诸如喷墨打印头的液滴发射器。 所公开的热致动器包括基座元件和从基座元件延伸的通常位于激活之前的第一位置处的悬臂元件。 悬臂元件包括由诸如钛铝化物的电阻材料构成的第一层，其被图案化以具有每个从基底元件延伸的第一电阻器段和第二电阻器段; 耦合装置，其在第一和第二电阻器段之间串联地传导电流; 以及由具有低热膨胀系数并附着到第一层的电介质材料构成的第二层。 提供连接到第一电阻器段的第一电极和连接到第二电阻器段的第二电极以在第一和第二电极之间施加电压脉冲，从而引起第一和第二电阻器段中的激活功率密度和功率密度 耦合装置内的最大值导致悬臂元件偏转到第二位置，并且其中功率密度最大值小于激活功率密度的四倍。 耦合装置可以形成为第一层中的一段或电活性材料的第三层。 公开了具有热致动器的液滴发射器的操作方法，其避免产生蒸气泡。

公开(公告)号：US06817702B2

公开(公告)日：2004-11-16

申请号：US10293982

申请日：2002-11-13

Applicant: Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

Inventor： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

IPC: B41J205

CPC classification number: B41J2/14427 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1648

Abstract: An apparatus for and method of operating a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element including a thermo-mechanical bender portion extending from the base element to a free end tip. The thermo-mechanical bender portion includes a barrier layer constructed of a dielectric material having low thermal conductivity, a first deflector layer constructed of a first electrically resistive material having a large coefficient of thermal expansion, and a second deflector layer constructed of a second electrically resistive material having a large coefficient of thermal expansion wherein the barrier layer is bonded between the first and second deflector layers. The thermo-mechanical bender portion further has a base end and base end width, wb, adjacent the base element, and a free end and free end width, wf, adjacent the free end tip, wherein the base end width is substantially greater than the free end width. A first heater resistor is formed in the first deflector layer and adapted to apply heat energy having a first spatial thermal pattern which results in a first deflector layer base end temperature increase, &Dgr;T1b, that is greater than a first deflector layer free end temperature increase, &Dgr;T1f. A second heater resistor is formed in the second deflector layer and adapted to apply heat energy having a second spatial thermal pattern which results in a second deflector layer base end temperature increase, &Dgr;T2b that is greater than a second deflector layer free end temperature increase, &Dgr;T2f. Application of an electrical pulse to either the first or second heater resistors causes deflection of the cantilevered element, followed by restoration of the cantilevered element to an initial position as heat diffuses through the barrier layer and the cantilevered element reaches a uniform temperature. For liquid drop emitter embodiments, the thermal actuator resides in a liquid-filled chamber that includes a nozzle for ejecting liquid. Application of electrical pulses to the heater resistors is used to adjust the characteristics of liquid drop emission. The barrier layer exhibits a heat transfer time constant &tgr;B. The thermal actuator is activated by a heat pulses of duration &tgr;P wherein &tgr;P

公开(公告)号：US06702209B2

公开(公告)日：2004-03-09

申请号：US10138908

申请日：2002-05-03

Applicant: Edward P. Furlani ,  Michael J. Debar ,  Christopher N. Delametter ,  Gilbert A. Hawkins ,  Constantine N. Anagnostopoulos

Inventor： Edward P. Furlani ,  Michael J. Debar ,  Christopher N. Delametter ,  Gilbert A. Hawkins ,  Constantine N. Anagnostopoulos

IPC: B05B300

CPC classification number: B41J2/14314

Abstract: A drop-on-demand liquid emission device, such as for example an ink jet printer, includes a member movable through a path for driving liquid from the device, wherein the speed at which the member moves is reduced over the time period that liquid is being expelled. During that time period, a portion of the liquid flows through a passage away from the nozzle orifice. According to a feature of the present invention, a variable flow restrictor increases the resistance to flow through the passage during the time period that liquid is being expelled; thereby tending to compensate for the reduction of the liquid-expulsion force over the time period. The result is a reduction of undesirable satellite droplets following a main drop.

Abstract translation: 液滴喷射装置例如喷墨打印机包括可移动通过用于从装置驱动液体的路径的构件，其中构件移动的速度在液体为 被驱逐 在该时间段期间，一部分液体流过远离喷嘴孔的通道。 根据本发明的特征，可变流量限制器在液体被排出的时间段内增加了通过通道的流动阻力; 从而有助于补偿在该时间段内液体排出力的减少。 结果是在主下降之后减少不期望的卫星液滴。

公开(公告)号：US06685303B1

公开(公告)日：2004-02-03

申请号：US10218788

申请日：2002-08-14

Applicant: David P. Trauernicht ,  Edward P. Furlani ,  John A. Lebens

Inventor： David P. Trauernicht ,  Edward P. Furlani ,  John A. Lebens

IPC: H01H7118

CPC classification number: B41J2/14427 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1639 ,  B41J2/1646 ,  B41J2/1648

Abstract: An apparatus for a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element extending from the base element and normally residing at a first position before activation. The cantilevered element includes a first layer constructed of an electrically resistive material, such as titanium aluminide, patterned to have a first resistor segment and a second resistor segment each extending from the base element; a coupling device that conducts electrical current serially between the first and second resistor segments; and a second layer constructed of a dielectric material having a low coefficient of thermal expansion and attached to the first layer. A first electrode connected to the first resistor segment and a second electrode connected to the second resistor segment are provided to apply an electrical voltage pulse between the first and second electrodes thereby causing an activation power density in the first and second resistor segments and a power density maximum within the coupling device resulting in a deflection of the cantilevered element to a second position and wherein the power density maximum is less than four times the activation power density. The coupling device may be formed as a segment in the first layer or in a third layer of an electrically active material. Methods of operating a liquid drop emitter having a thermal actuator are disclosed which avoid the generation of vapor bubbles.

公开(公告)号：US06598960B1

公开(公告)日：2003-07-29

申请号：US10154634

申请日：2002-05-23

Applicant: Antonio Cabal ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  David S. Ross

Inventor： Antonio Cabal ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  David S. Ross

IPC: B41J205

CPC classification number: B41J2/14427 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1639 ,  B41J2/1646 ,  B41J2/1648

Abstract: An apparatus for and method of operating a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element extending a length L from a base element and normally residing at a first position before activation. The cantilevered element includes a barrier layer constructed of a dielectric material having low thermal conductivity, a first deflector layer constructed of a first electrically resistive material having a large coefficient of thermal expansion and patterned to have a first uniform resistor portion extending a length LH1 from the base element, wherein 0.3L≦LH1≦0.7L, and a second deflector layer constructed of a second electrically resistive material having a large coefficient of thermal expansion and patterned to have a second uniform resistor portion extending a length LH2 from the base element, wherein 0.3L≦LH2≦0.7L, and wherein the barrier layer is bonded between the first and second deflector layers. The thermal actuator further comprises a first pair of electrodes connected to the first uniform resistor portion and a second pair of electrodes is connected to the second uniform resistor portion for applying electrical pulses to cause resistive heating of the first or second deflector layers, resulting in thermal expansion of the first or second deflector layer relative to the other. Application of an electrical pulse to either pair of electrodes causes deflection of the cantilevered element away from its first position and, alternately, causes a positive or negative pressure in the liquid at the nozzle of a liquid drop emitter. Application of electrical pulses to the pairs of electrodes is used to adjust the characteristics of liquid drop emission. The barrier layer exhibits a heat transfer time constant &tgr;B. The thermal actuator is activated by a heat pulses of duration &tgr;P wherein &tgr;P