公开(公告)号：US08601816B2

公开(公告)日：2013-12-10

申请号：US11780130

申请日：2007-07-19

Applicant: David J. Walker

Inventor： David J. Walker

IPC: F01K25/00 ,  F01K13/00 ,  G21D7/02 ,  H02K44/00

CPC classification number: H02K44/08

Abstract: A closed-cycle system and method of electrical power generation uses steam to transport charge carriers through an MHD generator. Water droplets, fine particles or mixtures thereof are used as the charge carriers. The fine particles are sufficiently small to allow the particles to pass through pumps and other equipment in the flow path with little or no damage, thereby eliminating the need to remove and re-inject a seed material, or treat it prior to discharge to the environment. The high operating temperatures of prior art MHD generators are avoided, thereby allowing more economical and readily available materials to be used. The system and method also allows the MHD generator to be used as the bottoming cycle in a single-loop power generation system, with a conventional steam turbine-generator used as the topping cycle, resulting in an increased heat rate with reduced emissions of greenhouse gases and other pollutants, and with reduced heat rejection to the environment per unit of electricity produced.

Abstract translation: 封闭循环系统和发电方法使用蒸汽将电荷载体传送通过MHD发生器。 使用水滴，细粒或其混合物作为电荷载体。 细颗粒足够小以允许颗粒在流动路径中通过泵和其他设备，几乎没有或没有损坏，从而不需要去除和重新注入种子材料，或者在排放到环境之前对其进行处理 。 避免了现有技术的MHD发生器的高操作温度，从而允许使用更经济和容易获得的材料。 该系统和方法还允许将MHD发电机用作单回路发电系统的底循环，其中传统的蒸汽轮机发电机用作顶部循环，导致增加的热速率，减少温室气体的排放 和其他污染物，并且每单位产生的电力对环境的排放降低。

公开(公告)号：US20120151234A1

公开(公告)日：2012-06-14

申请号：US12969780

申请日：2010-12-16

Applicant: Edward H. Teague ,  David J. Walker

Inventor： Edward H. Teague ,  David J. Walker

IPC: G06F1/32

CPC classification number: H04W52/0229 ,  Y02D70/26

Abstract: A method for implementing a sleep control that includes the steps of receiving a message from a sending block via a messaging bus, wherein the message is destined for a receiving block; determining whether the receiving block is awake; and delaying further transmission of the message until the receiving block is awake. An apparatus for performing the method is also disclosed.

Abstract translation: 一种用于实现睡眠控制的方法，包括以下步骤：经由消息总线从发送块接收消息，其中所述消息指定给接收块; 确定接收块是否清醒; 并延迟消息的进一步传输，直到接收块清醒。 还公开了一种用于执行该方法的装置。

公开(公告)号：US07490669B2

公开(公告)日：2009-02-17

申请号：US11418765

申请日：2006-05-05

Applicant: David J. Walker ,  Dewayne M. Turner ,  Gregg W. Stout ,  Todd Chretien ,  Christopher L. Blackler ,  Jack Robbins ,  Marvin B. Traweek

Inventor： David J. Walker ,  Dewayne M. Turner ,  Gregg W. Stout ,  Todd Chretien ,  Christopher L. Blackler ,  Jack Robbins ,  Marvin B. Traweek

IPC: E21B43/00

CPC classification number: E21B23/006 ,  E21B33/12 ,  E21B34/06 ,  E21B34/063 ,  E21B43/08 ,  E21B43/14 ,  E21B43/26

Abstract: An improved well completion system for completing two or more separate production zones in a well bore during a single downhole trip is disclosed. The improved completion system comprises a completion assembly comprising two or more production zone assemblies and a completion tool assembly. Each production zone assembly may comprise an automatic system locating assembly and at least two inverted seal systems for sealing against the tool assembly.

Abstract translation: 公开了一种改进的完井系统，用于在单次井下行程期间在井眼中完成两个或更多个单独的生产区。 改进的完成系统包括完成组件，其包括两个或更多个生产区组件和完井工具组件。 每个生产区组件可以包括自动系统定位组件和用于密封工具组件的至少两个倒置的密封系统。

公开(公告)号：US07012439B2

公开(公告)日：2006-03-14

申请号：US11058943

申请日：2005-02-15

Applicant: Gustavo A. Pinto ,  Brian C. Leslie ,  David L. Adler ,  Akella V. S. Satya ,  Robert Thomas Long ,  David J. Walker

Inventor： Gustavo A. Pinto ,  Brian C. Leslie ,  David L. Adler ,  Akella V. S. Satya ,  Robert Thomas Long ,  David J. Walker

IPC: G01R31/304

CPC classification number: H01L22/34 ,  G01N21/66 ,  G01N21/956 ,  G01N23/04 ,  G01R31/2884 ,  G01R31/307 ,  H01J2237/2817 ,  Y10S977/849

Abstract: Disclosed is a method of inspecting a sample. The sample is scanned in a first direction with at least one particle beam. The sample is scanned in a second direction with at least one particle beam. The second direction is at an angle to the first direction. The number of defects per an area of the sample are found as a result of the first scan, and the position of one or more of the found defects is determined from the second scan. In a specific embodiment, the sample includes a test structure having a plurality of test elements thereon. A first portion of the test elements is exposed to the beam during the first scan to identify test elements having defects, and a second portion of the test elements is exposed during the second scan to isolate and characterize the defect.

Abstract translation: 公开了一种检查样品的方法。 用至少一个粒子束沿第一方向扫描样品。 用至少一个粒子束在第二个方向上扫描样品。 第二方向与第一方向成一个角度。 作为第一扫描的结果，发现样品的每个区域的缺陷数，并且从第二次扫描确定发现的一个或多个缺陷的位置。 在具体实施例中，样本包括其上具有多个测试元件的测试结构。 测试元件的第一部分在第一次扫描期间暴露于光束以识别具有缺陷的测试元件，并且第二部分测试元件在第二次扫描期间暴露以分离和表征缺陷。

公开(公告)号：US06921672B2

公开(公告)日：2005-07-26

申请号：US10338936

申请日：2003-01-07

Applicant: Akella V. S. Satya ,  Gustavo A. Pinto ,  David L. Adler ,  Robert Thomas Long ,  Neil Richardson ,  Kurt H. Weiner ,  David J. Walker ,  Lynda C. Mantalas

Inventor： Akella V. S. Satya ,  Gustavo A. Pinto ,  David L. Adler ,  Robert Thomas Long ,  Neil Richardson ,  Kurt H. Weiner ,  David J. Walker ,  Lynda C. Mantalas

IPC: G01N21/66 ,  G01N21/95 ,  G01N21/956 ,  G01R31/28 ,  G01R31/307 ,  H01L23/544 ,  H01L21/66

CPC classification number: H01L22/34 ,  G01N21/66 ,  G01N21/956 ,  G01R31/2884 ,  G01R31/307 ,  H01J2237/2817

Abstract: Disclosed is a semiconductor die having a scanning area. The semiconductor die includes a first plurality of test structures wherein each of the test structures in the first plurality of test structures is located entirely within the scanning area. The semiconductor die further includes a second plurality of test structures wherein each of the test structures in the first plurality of test structures is located only partially within the scanning area. The test structures are arranged so that a scan of the scanning area results in detection of defects outside of the scanning area.

Abstract translation: 公开了具有扫描区域的半导体管芯。 半导体管芯包括第一多个测试结构，其中第一多个测试结构中的每个测试结构完全位于扫描区域内。 半导体管芯还包括第二多个测试结构，其中第一多个测试结构中的每个测试结构仅部分位于扫描区域内。 测试结构被布置成使得扫描区域的扫描导致检测到扫描区域外的缺陷。

公开(公告)号：US06681722B1

公开(公告)日：2004-01-27

申请号：US10273917

申请日：2002-10-18

Applicant: Mikhail Maryamchik ,  Michael J. Szmania ,  David J. Walker ,  Donald L. Wietzke

Inventor： Mikhail Maryamchik ,  Michael J. Szmania ,  David J. Walker ,  Donald L. Wietzke

IPC: F22B100

CPC classification number: F22B31/0084 ,  F23C10/08 ,  F23J2217/20

Abstract: A collection element arrangement is provided having sleeve attachments near their lowermost ends which simulate a continuous sloping surface, or floor. The sleeve attachments upper surfaces forming the floor permit collected solids to flow down the sloping surface back into the furnace or reactor chamber. Stainless steel can be used for the collection elements and sleeve attachments since the floating floor accommodates differential thermal expansion between CFB components.

Abstract translation: 提供收集元件布置，其在其最下端附近具有套筒附件，其模拟连续的倾斜表面或地板。 套筒附件形成地板的上表面允许收集的固体沿着倾斜的表面向下流回炉或反应室。 不锈钢可以用于收集元件和套筒附件，因为浮动地板容纳CFB部件之间的差分热膨胀。

公开(公告)号：US06500221B2

公开(公告)日：2002-12-31

申请号：US09865609

申请日：2001-05-25

Applicant: David J. Walker ,  Mikhail Maryamchik ,  Sundara M. Kavidass ,  Felix Belin ,  Kiplin C. Alexander ,  David E. James ,  David R. Gibbs ,  Donald L. Wietzke

Inventor： David J. Walker ,  Mikhail Maryamchik ,  Sundara M. Kavidass ,  Felix Belin ,  Kiplin C. Alexander ,  David E. James ,  David R. Gibbs ,  Donald L. Wietzke

IPC: B01D4508

CPC classification number: B01D45/08 ,  F22B31/0084 ,  F23C10/08

Abstract: Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler includes plural vertical, impact type particle separators made of cooling tubes located within the CFB in a plurality of staggered rows. One embodiment employs a plurality of stacked, slip fit elements having apertures which accept the cooling tubes. The slip fit elements cooperate with one another to form a collecting channel, typically U-shaped, which separates particles from flue gases conveyed across the particle separators. Shiplap joints in between the individual slip fit elements prevent gas and solids from leaking therebetween and allow for thermal expansion. Alternatively, the impact type particle separators include cooling tubes connected to one another to form a unitary structure. Pin studs welded to the cooling tubes and covered with a coating of refractory; ceramic tiles; metal or ceramic spray coatings; metal or ceramic castings; weld overlay; and/or shields provide erosion resistance.

Abstract translation: 用于在循环流化床（CFB）锅炉中从烟道气中分离固体的装置包括多个垂直的冲击型颗粒分离器，其由位于CFB内的多个交错排中的冷却管制成。 一个实施例采用具有接收冷却管的孔的多个堆叠的滑动配合元件。 滑动配合元件彼此配合以形成通常为U形的收集通道，其将颗粒与通过颗粒分离器输送的烟道气分离。 单个滑动配合元件之间的刮板接头可防止气体和固体在其间泄漏，并允许热膨胀。 或者，冲击式颗粒分离器包括彼此连接以形成一体结构的冷却管。 销螺栓焊接到冷却管并覆盖有耐火材料涂层; 瓷砖; 金属或陶瓷喷涂; 金属或陶瓷铸件; 焊缝覆盖层; 和/或防护罩提供抗侵蚀性。

公开(公告)号：US06322603B1

公开(公告)日：2001-11-27

申请号：US09613132

申请日：2000-07-10

Applicant: David J. Walker

Inventor： David J. Walker

IPC: B01D4508

CPC classification number: F22B31/0084 ,  B01D45/08 ,  F23C10/08

Abstract: An apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler includes a plurality of impact type particle separators mounted vertically to a wall of the CFB. The impact type particle separators being adjacently positioned and horizontally spaced. Each impact type particle separator includes a plurality of vertically mounted cooling tubes connected to a fluid circulating system. A slip fit element surrounds the cooling tubes. A cup shaped configuration is formed by side walls and a back wall. The side walls and back wall have a plurality of separate vertically aligned segments extending along the height of the impact type particle separator. Each vertically aligned segment is connected at its ends to an adjacent segment.

Abstract translation: 用于在循环流化床（CFB）锅炉中从烟道气中分离固体的装置包括垂直安装在CFB壁上的多个冲击型颗粒分离器。 冲击式颗粒分离器相邻定位并水平间隔。 每个冲击式颗粒分离器包括连接到流体循环系统的多个垂直安装的冷却管。 滑动配合元件围绕冷却管。 杯形构造由侧壁和后壁形成。 侧壁和后壁具有沿着冲击型颗粒分离器的高度延伸的多个单独的垂直对齐的部分。 每个垂直对准的段在其端部连接到相邻的段。

公开(公告)号：US06255983B1

公开(公告)日：2001-07-03

申请号：US09519370

申请日：2000-03-06

Applicant: Gregory A. Meszaros ,  Frank L. Kemeny ,  David J. Walker ,  Richard J. Zaranek ,  Frederick J. Mannion

Inventor： Gregory A. Meszaros ,  Frank L. Kemeny ,  David J. Walker ,  Richard J. Zaranek ,  Frederick J. Mannion

IPC: G01S1388

CPC classification number: C21C5/4673 ,  C21C2005/5288 ,  F27D19/00 ,  F27D21/00 ,  F27D21/0028 ,  G01F23/284 ,  G01S7/292 ,  G01S13/103 ,  G01S13/88 ,  Y02P10/216

Abstract: Radar is used to measure not only the level of slag on molten steel but also its thickness; the measurement is used to calculate the volume of slag, and, in turn the amount of additives for slag treatment. Time-of-flight data are used to identify peaks representing the distances of the surfaces of the slag and the surface of the underlying steel. The concept is applicable to other materials of differing composition, and particularly where the underlying material is relatively more conductive than the overlying material. Degassing is more efficiently practiced by using the radar slag thickness determinations to assist in vertical placement of snorkels.

Abstract translation: 雷达不仅用于测量钢水中的炉渣水平，还测量其厚度; 测量用于计算炉渣的体积，反过来又用于渣处理的添加剂量。 飞行时间数据用于识别代表炉渣表面和下层钢板表面距离的峰。 该概念适用于不同组成的其他材料，特别是在下层材料比上覆材料相对导电的情况下。 通过使用雷达炉渣厚度测定来帮助排气管垂直放置，更有效地实施脱气。

公开(公告)号：US5343830A

公开(公告)日：1994-09-06

申请号：US37986

申请日：1993-03-25

Applicant: Kiplin C. Alexander ,  Felix Belin ,  David E. James ,  David J. Walker

Inventor： Kiplin C. Alexander ,  Felix Belin ,  David E. James ,  David J. Walker

IPC: F23C10/08 ,  B01J8/24 ,  F22B31/00 ,  F23C9/00 ,  F23C10/10 ,  F23C10/12 ,  F22B1/00

CPC classification number: F23C10/12 ,  F22B31/0084 ,  F23C10/10 ,  F23J2217/20

Abstract: A CFB reactor or combustor having an internal impact type primary particle separator provides cavity means and particle return means in an upper portion of the reactor enclosure to obtain direct and internal return of all primary collected solids to a bottom portion of the reactor or combustor for subsequent recirculation without external and internal recycle conduits.

Abstract translation: 具有内部冲击型一次粒子分离器的CFB反应器或燃烧器在反应器外壳的上部提供空腔装置和颗粒返回装置，以便将所有主要收集的固体直接和内部返回到反应器或燃烧室的底部，以便随后 没有外部和内部循环管道的循环。