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1.发明授权
公开(公告)号：US5520780A
公开(公告)日：1996-05-28
申请号：US159689
申请日：1993-11-30
申请人： David R. Walker
发明人： David R. Walker
CPC分类号： D21B1/325 , D21C5/025 , Y02W30/646 , Y02W30/648
摘要： A newspaper de-inking system and process require much less water than conventional de-inking systems and which require much lower capital expenditure. The system removes ink from newspaper pulp in a continuous process using one or more extractors each of which performs a de-inking operation equivalent to 6 or more stages of a conventional de-inking process using reactor tanks. Water and heat are conserved still further by employing an evaporator to separate pure water from the extractor effluent and by recycling the purified water to the extractor and to other components of the system. A particularly preferred extractor employs a counterflow single-screw conveyor the flights of which have slots formed therethrough which extend counter to the direction of screw rotation. The slots permit efficient extraction using relatively little de-inking solution and at the same time obviate the need to periodically reverse the direction of screw rotation to unclog the slots. The flow of de-inking solution through the pulp and flights is determined by the dimension, number, and orientation of the slots, and by the pitch of the screw conveyor.
摘要翻译： 报纸脱墨系统和工艺要求比常规脱墨系统要少得多的水，而且需要更少的资本支出。 该系统使用一个或多个提取器在连续方法中从报纸纸浆中除去油墨，每个萃取器执行相当于使用反应器罐的常规去墨处理的6个或更多个阶段的脱墨操作。 通过使用蒸发器将纯水与萃取器流出物分离并通过将净化水再循环到萃取器和系统的其它组分而进一步保持水和热。 特别优选的提取器采用逆流单螺旋输送机，其中螺旋输送器的螺旋具有穿过其形成的槽，其与螺杆旋转的方向相反地延伸。 狭槽允许使用相对较少的脱墨溶液进行有效的提取，并且同时避免需要周期性地反转螺杆旋转的方向来解除狭槽。 通过纸浆和飞行的脱墨溶液的流动由槽的尺寸，数量和取向以及螺旋输送机的间距确定。
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2.发明授权Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor 失效使用开槽涡旋提取器从产品中提取可溶和可分散材料的方法和装置
公开(公告)号：US5409541A
公开(公告)日：1995-04-25
申请号：US159833
申请日：1993-11-30
申请人： David R. Walker
发明人： David R. Walker
CPC分类号： C13B10/102 , A23N1/00 , B30B9/121 , B30B9/128
摘要： A counterflow single-screw extractor includes a screw conveyor having a helical scroll formed from arcuate flight sections each having a plurality of elongated slots extending away from the direction of screw rotation and permitting the flow of effluent through the product and the flights in a manner controlled by the size, number, and orientation of the slots. The slots permit efficient extraction using relatively little extraction medium and at the same time permit a single-screw extractor to be used without having to periodically reverse the direction of screw rotation to unclog the slots and by the pitch of the screw conveyor. The inventive arrangement permits the use of a multi-section extractor employing different extraction media and/or different extraction media wash rates in different sections of the extractor.
摘要翻译： 逆流单螺杆提取器包括螺旋输送机，螺旋输送机具有由弓形飞行部分形成的螺旋形涡旋，每个螺旋涡卷具有多个细长的槽，该细长的槽远离螺杆旋转方向延伸，并允许以受控的方式流过产物和飞行物 根据插槽的大小，数量和方向。 狭槽允许使用相对较少的提取介质的有效提取，并且同时允许使用单螺旋提取器，而不必周期性地反转螺杆旋转的方向以阻塞狭槽和螺旋输送机的间距。 本发明的布置允许在提取器的不同部分中使用采用不同提取介质和/或不同提取介质洗涤速率的多段提取器。
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公开(公告)号：US10082782B2
公开(公告)日：2018-09-25
申请号：US11848074
申请日：2007-08-30
申请人： David R. Walker , Goran Igic , Thomas A. Moulton , David A. White
发明人： David R. Walker , Goran Igic , Thomas A. Moulton , David A. White
IPC分类号： G05B19/05
CPC分类号： G05B19/058 , G05B2219/14008 , G05B2219/14073
摘要： A device that provides for the non-invasive data monitoring of analog IO of a Programmable Logic Controller (PLC) system. The output is ultimately displayed 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.
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公开(公告)号：US08674714B2
公开(公告)日：2014-03-18
申请号：US12667106
申请日：2008-06-27
IPC分类号： G01R31/00
CPC分类号： G01R31/2806
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06556744B1
公开(公告)日：2003-04-29
申请号：US09975014
申请日：2001-10-12
IPC分类号： G02B628
CPC分类号： G02B6/29394 , H04B10/2525
摘要： The effects of dispersion of light on a link having an optical transmission fibre characterised by positive dispersion and large positive relative dispersion slope can be reduced by employing a sufficient length of dispersion compensating fibre (“DCF”) so that dispersion slope on the link is substantially nulled and the net dispersion of the link is made negative. Optical signals launched on the link with a positive chirp will be compensated for by the net negative dispersion.
摘要翻译： 可以通过使用足够长的色散补偿光纤（“DCF”）来减小光分散在具有正色散和大的正相对色散斜率的光传输光纤的链路上的影响，使得链路上的色散斜率基本上 无效，链路的净偏差为负数。 带有正啁啾线的链路上发射的光信号将被净负色散补偿。
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公开(公告)号：US06457348B1
公开(公告)日：2002-10-01
申请号：US09813248
申请日：2001-03-20
申请人： David R. Walker
发明人： David R. Walker
IPC分类号： G01N1100
CPC分类号： B08B9/032 , B08B9/0325 , B08B9/0327 , B08B2230/01 , F28G9/00 , G01N15/0618
摘要： A high-pressure high-velocity target inserter for use in steam cleaning. The target inserter uses an actuator connected to a tube assembly, which connects to a test line. The target inserter uses packing to prevent high-pressure steam from being released through the target inserter when the target rod is inserted and withdrawn from the line. In the preferred embodiment, the target rod passes through a remotely operated actuator controlled valve and a remotely controlled actuator controller, such that the operator is kept a safe distance away from the inserter when the access valve to the line is open.
摘要翻译： 一种用于蒸汽清洗的高压高速目标插入器。 目标插入器使用连接到管组件的致动器，其连接到测试线。 目标插入器使用填料来防止当目标杆从管线插入和取出时高压蒸汽通过目标插入件释放。 在优选实施例中，目标杆通过远程操作的致动器控制阀和远程控制的致动器控制器，使得当进入管路的进入阀打开时，操作者保持远离插入件的安全距离。
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公开(公告)号：US5854805A
公开(公告)日：1998-12-29
申请号：US821545
申请日：1997-03-21
申请人： John Reid , David R. Walker
发明人： John Reid , David R. Walker
IPC分类号： B23K26/06 , H01S3/102 , H01S3/131 , H01S3/0933
CPC分类号： H01S3/11 , B23K26/06 , B23K26/064 , H01S3/1022 , H01S3/1312 , H01S3/0941
摘要： A laser machining (including marking) method that employs a diode laser pumped solid state laser is controlled by a computer that contains a program for the interaction of the laser beam with a workpiece. The pumping of the laser is synchronised with the action of the beam in a series of active machining periods alternating with inactive non-machining periods. In order to avoid overheating of the active element, the duty cycle of these periods is maintained below a chosen value and no active period is allowed to exceed a selected percentage of the thermal time constant of the active element.
摘要翻译： 使用二极管激光泵浦固态激光器的激光加工（包括标记）方法由包含用于激光束与工件的相互作用的程序的计算机控制。 激光器的泵浦与一系列有源加工周期中的波束的作用同步，与非活动非加工周期交替。 为了避免有源元件的过热，这些周期的占空比保持在选定值以下，并且不允许有效周期超过有源元件的热时间常数的选定百分比。
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公开(公告)号：US5476550A
公开(公告)日：1995-12-19
申请号：US399450
申请日：1995-03-07
申请人： David R. Walker
发明人： David R. Walker
CPC分类号： C13B10/102 , A23N1/00 , B30B9/121 , B30B9/128
摘要： A counterflow single-screw extractor includes a screw conveyor having a helical scroll formed from arcuate flight sections each having a plurality of elongated slots extending away from the direction of screw rotation and permitting the flow of effluent through the product and the flights in a manner controlled by the size, number, and orientation of the slots. The slots permit efficient extraction using relatively little extraction medium and at the same time permit a single-screw extractor to be used without having to periodically reverse the direction of screw rotation to unclog the slots and by the pitch of the screw conveyor. The inventive arrangement permits the use of a multi-section extractor employing different extraction media and/or different extraction media wash rates in different sections of the extractor.
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公开(公告)号：US5137545A
公开(公告)日：1992-08-11
申请号：US510246
申请日：1990-04-19
申请人： David R. Walker
发明人： David R. Walker
摘要： A vapor clarification system includes a suction box and a plurality of fans located on top of the suction box. The fans withdraws a moisture-laden stream from the suction box and centrifugally accelerates it, producing a clarified vapor stream and a secondary vapor stream that is heavily laden with particulate matter. The secondary vapor stream leaving each fan passes through a cyclone, where particulate matter falls out of the vapor stream. The partially clarified vapor stream leaving the cyclone is returned to the suction box and re-accelerated in the fans. By placing the fans on top of the suction box, there is a reduction in the temperature drop occurring in the vapor stream which exits the fans; this in turn reduces condensation and improves the efficiency of the system. Primary cyclones are preferably disposed within the suction box, and secondary cyclones may be placed outside of the suction box. The number of fans can also be modified to meet varying system requirements, thus providing a more flexible air-clarification system.
摘要翻译： 蒸汽澄清系统包括抽吸箱和位于吸入箱顶部的多个风扇。 风扇从抽吸箱中抽出含水量的水流，并离心加速，产生澄清的蒸气流和重载于颗粒物质的二次蒸气流。 离开每个风扇的二次蒸气流通过旋风分离器，其中颗粒物质从蒸气流中脱落。 离开旋风分离器的部分澄清的蒸气流返回吸入箱并在风扇中重新加速。 通过将风扇放置在吸气箱的顶部，出现在离开风扇的蒸气流中发生的温度降低; 这又减少了冷凝，提高了系统的效率。 主旋风器优选地设置在抽吸箱内，并且二次旋风分离器可以放置在抽吸箱的外部。 风扇的数量也可以修改以满足不同的系统要求，从而提供更灵活的空气净化系统。
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公开(公告)号：US4765897A
公开(公告)日：1988-08-23
申请号：US856519
申请日：1986-04-28
申请人： John E. Cadotte , David R. Walker
发明人： John E. Cadotte , David R. Walker
CPC分类号： B01D67/0088 , B01D67/0093 , B01D71/56 , B01D2323/30 , Y10T428/31536 , Y10T428/3175
摘要： 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.
摘要翻译： 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。
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