公开(公告)号：US20190025791A1

公开(公告)日：2019-01-24

申请号：US16139830

申请日：2018-09-24

Applicant: David R. Walker ,  Thomas A. Moulton ,  Goran Igic

Inventor： David R. Walker ,  Thomas A. Moulton ,  Goran Igic

IPC: G05B19/05

CPC classification number: G05B19/058 ,  G05B19/054 ,  G05B19/056

Abstract: A device that provides for the non-invasive data monitoring of analog IO of a Programmable Logic Controller (PLC) system is described. The output is ultimately presented to a user audibly and/or visually on an interface in real-time and is measured directly from the IO channel. This type of device allows the accurate reading and analysis of errors and erroneous data within a device and transmission of said data to disparate secondary devices for use.

公开(公告)号：US20100271058A1

公开(公告)日：2010-10-28

申请号：US12667106

申请日：2008-06-27

Applicant: Anton Theodore Kitai ,  Paul Andrew Labelle ,  Robert Glenn Parker ,  David R. Walker

Inventor： Anton Theodore Kitai ,  Paul Andrew Labelle ,  Robert Glenn Parker ,  David R. Walker

IPC: G01R33/00 ,  G01R1/067 ,  B23K26/00 ,  H05K13/00

CPC classification number: G01R31/2806

Abstract: A system and method of probing work pieces is described. A first and second arm each having a pivot point and a guide end are pivotally coupled together at the respective pivot points. A probe tip holder is coupled to at least one of the first arm or the second arm. A guide means guides movement of the guide ends of the pivotally coupled arms, such that movement of the guide end of the first arm and the second arm move the probe tip holder in a plane parallel to the work piece surface.

Abstract translation: 描述了探测工件的系统和方法。 每个具有枢转点和引导端的第一和第二臂在相应的枢转点枢转地联接在一起。 探针头保持器联接到第一臂或第二臂中的至少一个。 引导装置引导枢转联接臂的引导端的移动，使得第一臂和第二臂的引导端的运动使探针头保持器在与工件表面平行的平面中移动。

公开(公告)号：US20100216667A1

公开(公告)日：2010-08-26

申请号：US12640481

申请日：2009-12-17

Applicant: Brian K. Meyer ,  Leonardo R. Allain ,  David Geer ,  Rajiv Mahajan ,  David R. Walker ,  Marc J. Kirchmeier

Inventor： Brian K. Meyer ,  Leonardo R. Allain ,  David Geer ,  Rajiv Mahajan ,  David R. Walker ,  Marc J. Kirchmeier

IPC: C40B30/10 ,  G01N27/26 ,  G01N30/02 ,  H01J49/26 ,  G01R33/44 ,  G01N21/47

CPC classification number: G01R33/44 ,  G01N24/08 ,  G01N24/085 ,  G01N33/15 ,  G01N2030/8827 ,  G01N2030/8831

Abstract: Disclosed is a system or matrix approach for determining compatibility of a pharmaceutically active substance, such as small molecule drug candidate, therapeutic proteins, peptides, vaccines or RNAi, with materials used in the research and development of pharmaceuticals, including plastics, polymers, resins, rubbers, elastomers, glass and steel.

Abstract translation: 公开了用于确定药物活性物质如小分子候选药物，治疗性蛋白质，肽，疫苗或RNAi的相容性的系统或基质方法与用于研究和开发药物的材料，包括塑料，聚合物，树脂， 橡胶，弹性体，玻璃和钢。

公开(公告)号：US06639004B2

公开(公告)日：2003-10-28

申请号：US09904804

申请日：2001-07-12

Applicant: Ladislav Falat ,  James R. Miller ,  Mark E. Schiek ,  David R. Walker

Inventor： Ladislav Falat ,  James R. Miller ,  Mark E. Schiek ,  David R. Walker

IPC: B01J2020

CPC classification number: C08J7/042 ,  B65D81/266 ,  C08J2323/06 ,  C08J2367/00 ,  C08J2467/00 ,  C08J2475/04 ,  C08K3/04 ,  C09D7/61 ,  C09D7/69

Abstract: An odor sorbing packaging material is prepared by applying to at least one surface of a flexible substrate an odor absorbing coating containing an effective concentration of activated carbon. The packaging material may be converted into packages, bags, pouches, liner members, wrappers or the like for packaging products and other materials that generate objectionable odors.

公开(公告)号：US6136077A

公开(公告)日：2000-10-24

申请号：US187013

申请日：1998-11-05

Applicant: David R. Walker

Inventor： David R. Walker

IPC: B01D45/14

CPC classification number: B01D45/14

Abstract: An apparatus which absorbs gas that has been discharged from a pipe at a high velocity and which releases the gas to the atmosphere at a reduced velocity and with relatively low noise. The apparatus includes a container which has a container interior, a container inlet through which the gas enters the container interior, and a container outlet, preferably located at the top of the container, through which the gas is released to the atmosphere. The container further includes a container expanded section and a container main section. The container expanded section, which acts to reduce the velocity of the gas, is located intermediate the container inlet and the container main section and has an inner surface cross-sectional area which expands from the container inlet to the container main section. The container also includes deflector vanes for diverting the flow of the gas within the container interior towards the container outlet. The deflector vanes provide the gas flow with a smooth and gradual transition from the container inlet to the container outlet thereby enhancing the flow characteristics and properties of the gas flow within the container and reducing the vibrations and noise level associated with high velocity gas flow and speed reduction. In the preferred embodiment, deflector vanes are attached within the container interior to divert the flow of gas, each vane preferably attached at an angle from horizontal ranging from 20 to 50 degrees.

Abstract translation: 吸收高速排出管道的气体，以较低的速度和较低的噪音将气体释放到大气中的装置。 该装置包括容器内部的容器，气体进入容器内部的容器入口和优选位于容器顶部的容器出口，气体通过该容器释放到大气中。 容器还包括容器膨胀部分和容器主体部分。 用于降低气体速度的容器膨胀部分位于容器入口和容器主体部分的中间，并且具有从容器入口膨胀到容器主体部分的内表面横截面面积。 容器还包括用于将容器内部内的气体流转向容器出口的偏转叶片。 导流叶片为气流提供了从容器入口到容器出口的平滑和逐渐过渡，从而增强了容器内气流的流动特性和性能，并降低了与高速气流和速度相关联的振动和噪声水平 减少。 在优选实施例中，偏转叶片附接在容器内部以转移气体流，每个叶片优选地以与水平方向成20度至50度的角度附接。

公开(公告)号：US5592327A

公开(公告)日：1997-01-07

申请号：US581045

申请日：1995-12-29

Applicant: Edward F. Gabl ,  David R. Walker ,  Yang Pang

Inventor： Edward F. Gabl ,  David R. Walker ,  Yang Pang

IPC: H01S3/067 ,  H01S3/16 ,  H01S3/23 ,  H01S3/00 ,  H01S3/08

CPC classification number: H01S3/235 ,  H01S3/06754 ,  H01S3/1062 ,  H01S3/1608 ,  H01S3/1625

Abstract: A regenerative amplifier includes a resonant cavity having a gain medium and a spectral filter located in the cavity. A source is provided to pump the gain medium and thereby raise it to an excited state. Elements are also provided for creating laser seed pulses which are then injected into the resonant cavity, these elements preferably include in part a mode-locked oscillator having a wavelength substantially the same as that at which the gain medium can support amplification of the energy of the injected pulse. In a preferred embodiment the gain medium is Ti:Sapphire for both the amplifier and oscillator. Also, in the preferred embodiment the seed pulse from the oscillator is stretched in time by multiplicative factors sufficient to ensure that upon amplification, the seed pulse power density remains below the self-focusing threshold of the material through which the pulse is passed. The seed laser pulses are injected into the resonant cavity of the regenerative amplifier so as to provide multiple traversals of the resonant cavity and the gain medium therein, thereby amplifying the pulses. The pulse is recompressed back to some predetermined pulse width of interest to the user; for example, back to the temporal pulse width that is limited by the spectral bandwidth of the output pulse.

Abstract translation: 再生放大器包括具有增益介质的谐振腔和位于空腔中的光谱滤波器。 提供源来泵送增益介质，从而将其提高到激发状态。 还提供了用于产生激光种子脉冲的元件，然后将其注入到谐振腔中，这些元件优选地部分包括具有与增益介质可以支持放大能量的波长基本相同的波长的锁模振荡器 注入脉冲。 在优选实施例中，增益介质是用于放大器和振荡器的Ti：蓝宝石。 此外，在优选实施例中，来自振荡器的种子脉冲在时间上被乘法因子拉伸，足以确保在放大时，种子脉冲功率密度保持低于通过脉冲通过的材料的自聚焦阈值。 将种子激光脉冲注入到再生放大器的谐振腔中，以便在其中提供谐振腔和增益介质的多次遍历，从而放大脉冲。 将脉冲再次压缩回用户感兴趣的某个预定脉冲宽度; 例如，回到由输出脉冲的光谱带宽限制的时间脉冲宽度。

公开(公告)号：US5572358A

公开(公告)日：1996-11-05

申请号：US358023

申请日：1994-12-16

Applicant: Edward F. Gabl ,  David R. Walker ,  Yang Pang

Inventor： Edward F. Gabl ,  David R. Walker ,  Yang Pang

IPC: H01S3/067 ,  H01S3/16 ,  H01S3/23 ,  H01S3/00

CPC classification number: H01S3/235 ,  H01S3/06754 ,  H01S3/1062 ,  H01S3/1608 ,  H01S3/1625

Abstract: A regenerative amplifier includes a resonant cavity having a gain medium and a spectral filter located in the cavity. A source is provided to pump the gain medium and thereby-raise it to an excited state. Elements are also provided for creating laser seed pulses which are then injected into the resonant cavity, these elements preferably include in part a mode-locked oscillator having a wavelength substantially the same as that at which the gain medium can support amplification of the energy of the injected pulse. In a preferred embodiment the gain medium is Ti:Sapphire for both the amplifier and oscillator. Also, in the preferred embodiment the seed pulse from the oscillator is stretched in time by multiplicative factors sufficient to ensure that upon amplification, the seed pulse power density remains below the self-focusing threshold of the material through which the pulse is passed. The seed laser pulses are injected into the resonant cavity of the regenerative amplifier so as to provide multiple traversals of the resonant cavity and the gain medium therein, thereby amplifying the pulses. The pulse is recompressed back to some predetermined pulse width of interest to the user; for example, back to the temporal pulse width that is limited by the spectral bandwidth of the output pulse.

Abstract translation: 再生放大器包括具有增益介质的谐振腔和位于空腔中的光谱滤波器。 提供源来泵浦增益介质，从而将其提高到激发状态。 还提供了用于产生激光种子脉冲的元件，然后将其注入到谐振腔中，这些元件优选地部分包括具有与增益介质可以支持放大能量的波长基本相同的波长的锁模振荡器 注入脉冲。 在优选实施例中，增益介质是用于放大器和振荡器的Ti：蓝宝石。 此外，在优选实施例中，来自振荡器的种子脉冲在时间上被乘法因子拉伸，足以确保在放大时，种子脉冲功率密度保持低于通过脉冲通过的材料的自聚焦阈值。 将种子激光脉冲注入到再生放大器的谐振腔中，以便在其中提供谐振腔和增益介质的多次遍历，从而放大脉冲。 将脉冲再次压缩回用户感兴趣的某个预定脉冲宽度; 例如，回到由输出脉冲的光谱带宽限制的时间脉冲宽度。

公开(公告)号：US5285581A

公开(公告)日：1994-02-15

申请号：US785276

申请日：1991-10-30

Applicant: David R. Walker

Inventor： David R. Walker

IPC: F26B3/00 ,  F26B11/02 ,  F26B11/04 ,  F27B7/36 ,  F26B17/00

CPC classification number: F26B11/028 ,  F26B11/0477 ,  F26B3/00

Abstract: A dryer assembly dries waste materials to a predetermined moisture level. The dryer includes a drum having an inlet where waste materials and hot gasses are simultaneously introduced, and an outlet where dried materials and hot vapors are transferred out of the dryer. The drum presents a plurality of preheat baffles in which the material is heated by but does not contact the gasses, thereby avoiding premature combustion of the material. Baffle sections located downstream of preheat baffles uniformly distribute material downstream into a primary drying section of the drum, where the material is mixed with the gasses to uniformly dry the material to the predetermined moisture level. The primary drying section includes alternating baffle sections which dry the material and which recycle material that is not yet dried back into the preceding baffle sections, respectively. The dryer can be readily adapted to accommodate a wide variety of materials of widely varying moisture levels by modifying the dwell times of the material within individual dryer sections and/or by varying the diameter of the dryer and the lengths of the individual dryer sections.

Abstract translation: 干燥器组件将废料干燥至预定的水分含量。 干燥机包括具有同时导入废料和热气体的入口的滚筒，以及干燥材料和热蒸汽从干燥器中输出的出口。 滚筒呈现多个预热挡板，其中材料被加热但不接触气体，从而避免材料的过早燃烧。 位于预热挡板下游的挡板部分将材料均匀地分配到滚筒的初级干燥部分中，其中材料与气体混合以将材料均匀地干燥至预定的湿度水平。 初级干燥部分包括交替的挡板部分，其将材料和尚未干燥的回收材料分别干燥回到前面的挡板部分中。 干燥器可以容易地适应于通过改变各个干燥器部分内的材料的停留时间和/或通过改变干燥器的直径和各个干燥器部分的长度来适应各种各样变化的水分含量的材料。

公开(公告)号：US4824574A

公开(公告)日：1989-04-25

申请号：US205523

申请日：1988-06-13

Applicant: John E. Cadotte ,  David R. Walker

Inventor： John E. Cadotte ,  David R. Walker

IPC: B01D67/00 ,  C02F1/44

CPC classification number: B01D67/0088 ,  B01D67/0093 ,  B01D2323/30

Abstract: A novel water softening membrane and process for making the same is described. The membrane can be prepared by treating a polyamide reverse osmosis membrane with a strong mineral acid followed by treatment with a rejection enhancing agent. The resulting membrane at transmembrane pressures of 50 psi can attain a magnesium sulfate rejection with a 0.2 percent aqueous solution of more than 90 percent with a water flux of more than 15 gallons per square foot per day.

Abstract translation: 描述了一种新型水软化膜及其制备方法。 可以通过用强无机酸处理聚酰胺反渗透膜，然后用排斥增强剂处理来制备膜。 所产生的膜在50psi的跨膜压力下可以获得超过90％的0.2％水溶液的硫酸镁排除，每天每平方英尺超过15加仑的水通量。

公开(公告)号：US08731400B2

公开(公告)日：2014-05-20

申请号：US13442672

申请日：2012-04-09

Applicant: Jinxi Shen ,  David R. Walker ,  Leonid Frenkel ,  Yu Zhang ,  Barthelemy Fondeur ,  Vlatko Milinkovic ,  Yimin Hua

Inventor： Jinxi Shen ,  David R. Walker ,  Leonid Frenkel ,  Yu Zhang ,  Barthelemy Fondeur ,  Vlatko Milinkovic ,  Yimin Hua

IPC: H04B10/08 ,  H04J14/00

CPC classification number: H04B10/0775

Abstract: A tunable optical filter is configured to take point measurements at a few optical frequencies per frequency channel of a DWDM optical network. The measurement frequencies are shifted by pre-determined amounts relative to the optical frequency channel being characterized. Since the spectral shape of the tunable optical filter is known, the center optical frequency, the modulation bandwidth, and the total optical power of the channel can be obtained from as few as three optical measurements. The center optical frequency and the total optical power can be continuously monitored by providing a tunable filter stage coupled to an interleaver stage, and computing a ratio and a weighted sum the optical signals at the two outputs of the interleaver stage.

Abstract translation: 可调谐光学滤波器被配置为在DWDM光网络的每个频道上以几个光学频率进行点测量。 测量频率相对于被表征的光频道被移动预定量。 由于可调光滤波器的光谱形状是已知的，所以可以从少至三个光学测量中获得信道的中心光频率，调制带宽和总光功率。 可以通过提供耦合到交织器级的可调滤波器级，并且计算交织器级的两个输出处的光信号的比率和加权和来连续监视中心光频率和总光功率。