公开(公告)号：US5438862A

公开(公告)日：1995-08-08

申请号：US195498

申请日：1994-02-14

申请人： Robert F. Keating ,  David A. Snyder

发明人： Robert F. Keating ,  David A. Snyder

IPC分类号： G01M3/04 ,  G01M3/28 ,  G01M3/32 ,  G21C17/003 ,  F24H9/16

CPC分类号： G01M3/2853

摘要： System and method for in situ testing of the leak-tightness of a tubular member, which tubular member may be a nuclear steam generator heat transfer tube. The system includes a mandrel insertable into the tube, the mandrel having a pair of spaced-apart expandable bladders surrounding the mandrel. A first channel extends through the mandrel and is in communication with the bladders. A fluid supply circuit is in fluid communication with the first channel for supplying pressurized liquid to the bladders so that the bladders radially expand into sealing engagement with the inner diameter of the tube. As the bladders expand into sealing engagement with the tube, a sealed annular chamber is defined therebetween bounded by the bladders and the inner diameter of the tube. A second channel also extends through the mandrel, the second channel being in fluid communication with the fluid supply circuit at one end thereof and in communication with the chamber at the other and thereof in order to pressurize the chamber with the liquid. A controller is connected to the fluid supply circuit for measuring the flow rate of the liquid flowing through the fluid supply circuit to the chamber. Any crack in the tube wall adjacent the chamber will allow the liquid to escape therefrom at a characteristic flow rate corresponding to the size of the crack. However, the fluid supply circuit maintains the liquid pressure in the chamber so that the pressure and thus the liquid inventory in the chamber remains constant as the liquid leaks through the crack. The controller, which is connected to the flow meter, measures the flow rate and pressure of the liquid flowing through the fluid supply circuit. In view of the fact that the liquid (i.e., water) is incompressible, the flow rate through the crack and the pressure in the chamber are provided by measuring the flow rate and pressure of the liquid flowing through the fluid supply circuit.

公开(公告)号：US5456290A

公开(公告)日：1995-10-10

申请号：US772622

申请日：1991-10-04

申请人： Eric R. Haberman ,  James W. Everett ,  Robert F. Keating ,  David A. Snyder

发明人： Eric R. Haberman ,  James W. Everett ,  Robert F. Keating ,  David A. Snyder

IPC分类号： G21C17/003 ,  F16L55/13 ,  F28F11/02 ,  G21C13/067 ,  G21D1/00 ,  F16L55/12

CPC分类号： F28F11/02 ,  F16L55/13 ,  G21C13/067 ,  Y02E30/40

摘要： Tube plug and method for plugging a heat exchanger tube having an inner wall, which tube plug has a reduced susceptibility to stress corrosion cracking. The tube plug includes a shell having a closed end, an open end and an outer wall, the shell defining a chamber therein in communication with the open end of the shell. Disposed in the chamber is an expander member for expanding the outer wall of the shell into sealing engagement with the inner wall of the tube. A sealing member engages the expander member and is disposed across the open end of the shell for sealing the chamber defined by the shell so that fluid can not enter the chamber to corrosively attack the shell.

摘要翻译： 用于堵塞具有内壁的热交换器管的管塞和方法，该管塞对应力腐蚀开裂的敏感性降低。 管塞包括具有闭合端，开口端和外壁的壳体，壳体限定与壳体的开口端连通的室。 设置在腔室中的膨胀器构件用于使壳体的外壁膨胀成与管的内壁密封接合。 密封构件接合膨胀器构件并且横跨壳体的开口端布置，用于密封由壳限定的室，使得流体不能进入室以腐蚀地侵入壳体。

公开(公告)号：US08112769B2

公开(公告)日：2012-02-07

申请号：US11744338

申请日：2007-05-04

申请人： Michael A. Fuchs ,  David A. Snyder

发明人： Michael A. Fuchs ,  David A. Snyder

IPC分类号： G06F9/44 ,  G06F9/46 ,  G06F13/00 ,  G06F3/00 ,  G06F13/42

CPC分类号： H04L41/022 ,  G06F9/4411 ,  H04L41/0806

摘要： A computer system, and related components including network interface devices, as well as methods for implementing and/or operating network interface devices to achieve network-based communications, are disclosed. In at least one embodiment, the computer system includes a network interface device, and a bus driver in communication with the network interface device. The bus driver has access to a plurality of driver programs, and the bus driver is capable of causing an installation of one such driver program on the network interface device. Also, in at least some embodiments, the bus driver facilitates communications between multiple network interface devices and an operating system of the computer system, and/or between the network interface devices and user mode applications implementing graphical user interfaces. Further, in at least some embodiments, the bus driver governs operation of the network interface devices, for example, in relation to power management and/or interrupt handling.

摘要翻译： 公开了一种计算机系统以及包括网络接口设备的相关组件以及用于实现和/或操作网络接口设备以实现基于网络的通信的方法。 在至少一个实施例中，计算机系统包括网络接口设备和与网络接口设备通信的总线驱动器。 总线驱动程序可以访问多个驱动程序，总线驱动程序能够在网络接口设备上安装一个这样的驱动程序。 此外，在至少一些实施例中，总线驱动器促进多个网络接口设备和计算机系统的操作系统之间的通信，和/或在实现图形用户界面的网络接口设备和用户模式应用之间。 此外，在至少一些实施例中，总线驱动器控制网络接口设备的操作，例如关于功率管理和/或中断处理。

公开(公告)号：US20080276257A1

公开(公告)日：2008-11-06

申请号：US11744338

申请日：2007-05-04

申请人： Michael A. Fuchs ,  David A. Snyder

发明人： Michael A. Fuchs ,  David A. Snyder

IPC分类号： G06F9/44

CPC分类号： H04L41/022 ,  G06F9/4411 ,  H04L41/0806

摘要： A computer system, and related components including network interface devices, as well as methods for implementing and/or operating network interface devices to achieve network-based communications, are disclosed. In at least one embodiment, the computer system includes a network interface device, and a bus driver in communication with the network interface device. The bus driver has access to a plurality of driver programs, and the bus driver is capable of causing an installation of one such driver program on the network interface device. Also, in at least some embodiments, the bus driver facilitates communications between multiple network interface devices and an operating system of the computer system, and/or between the network interface devices and user mode applications implementing graphical user interfaces. Further, in at least some embodiments, the bus driver governs operation of the network interface devices, for example, in relation to power management and/or interrupt handling.

摘要翻译： 公开了一种计算机系统以及包括网络接口设备的相关组件以及用于实现和/或操作网络接口设备以实现基于网络的通信的方法。 在至少一个实施例中，计算机系统包括网络接口设备和与网络接口设备通信的总线驱动器。 总线驱动程序可以访问多个驱动程序，总线驱动程序能够在网络接口设备上安装一个这样的驱动程序。 此外，在至少一些实施例中，总线驱动器促进多个网络接口设备和计算机系统的操作系统之间的通信，和/或在实现图形用户界面的网络接口设备和用户模式应用之间。 此外，在至少一些实施例中，总线驱动器控制网络接口设备的操作，例如关于功率管理和/或中断处理。

公开(公告)号：USD541166S1

公开(公告)日：2007-04-24

申请号：US29232769

申请日：2005-06-22

申请人： David A. Snyder ,  Michael Trygstad

设计人： David A. Snyder ,  Michael Trygstad

公开(公告)号：USD505864S1

公开(公告)日：2005-06-07

申请号：US29187768

申请日：2003-08-07

申请人： David A. Snyder

设计人： David A. Snyder

公开(公告)号：US5752311A

公开(公告)日：1998-05-19

申请号：US387661

申请日：1995-02-13

申请人： David A. Snyder

发明人： David A. Snyder

IPC分类号： G21C19/02 ,  B21D39/04 ,  B21D39/06 ,  B21D39/20 ,  B23P15/00

CPC分类号： B21D39/20 ,  B21D39/06 ,  B21D39/203 ,  Y10T29/49375 ,  Y10T29/531 ,  Y10T29/53109 ,  Y10T29/53122 ,  Y10T29/53657

摘要： Method for expanding tubular members, such as U-shaped heat transfer tubes having ends thereof located in the confined space adjacent the curved sides of the bowl-shaped lower plenum of a typical nuclear steam generator. The apparatus includes an elongate mandrel having a flow channel therethrough in communication with a resilient tubular bladder surrounding the mandrel. The bladder is flexible about its longitudinal axis due to the ribbed construction of the wall thereof. The mandrel includes a plurality of segments, adjacent ones of the segments interconnected by a ball-and-socket joint therebetween, so that the segments swivel about respective ones of the ball-and-socket joints. Thus, the mandrel and the expandable bladder connected thereto are flexible rather than rigid in order to be easily inserted into the tube ends located adjacent the curved sides of the bowl-shaped plenum and in order to easily traverse the upper U-bend portion of the tube.

摘要翻译： 用于膨胀管状构件的方法，例如U形传热管，其具有位于与典型核蒸汽发生器的碗形下部通风室的弯曲侧相邻的限制空间中的端部。 该设备包括细长心轴，其具有与围绕心轴的弹性管状气囊连通的流动通道。 由于其壁的肋状结构，囊状物的纵向轴线是柔性的。 心轴包括多个段，相邻的段通过其间的球窝接头互连，使得段围绕球窝接头的相应的一个旋转。 因此，连接到其上的心轴和可膨胀气囊是柔性的而不是刚性的，以便容易地插入位于邻近碗形气室的弯曲侧面的管端中，并且为了容易地横过碗状容器的上U形弯曲部分 管。\！

公开(公告)号：US5311569A

公开(公告)日：1994-05-10

申请号：US893613

申请日：1992-06-05

申请人： Joseph M. Brozovich ,  Nicholas M. DeVito ,  Douglas C. Kroupa ,  Paul E. Renn ,  Paul M. Simek ,  David A. Snyder ,  James L. Turner

发明人： Joseph M. Brozovich ,  Nicholas M. DeVito ,  Douglas C. Kroupa ,  Paul E. Renn ,  Paul M. Simek ,  David A. Snyder ,  James L. Turner

IPC分类号： H04M3/42 ,  H04M3/51 ,  H04M3/62 ,  H04M11/04 ,  H04Q3/72 ,  H04Q11/04 ,  H04M11/00

CPC分类号： H04M11/04 ,  H04M3/51 ,  H04M3/62 ,  H04Q11/0435 ,  H04Q3/72 ,  H04M2242/22 ,  H04M3/42042 ,  H04M3/5116 ,  H04Q2213/13091 ,  H04Q2213/13092 ,  H04Q2213/13163 ,  H04Q2213/13175 ,  H04Q2213/1337

摘要： A line-based 911 system and method that completes an emergency call from a telephone to a PSAP comprising a multiplicity of operator stations connected by individual lines to a telephone switching system. An emergency call is routed to the termination ports of the switching system associated with a PSAP. Each of the termination ports is connected to one of the multiplicity of operator stations via its associated line, thereby establishing a path from the telephone to the operator station, the CPN of the calling telephone is delivered to the selected operator station and the operator station obtains location information of the telephone in accordance with the CPN, which is then displayed.

摘要翻译： 一种基于线路的911系统和方法，其完成从电话到PSAP的紧急呼叫，其包括通过各个线路连接到电话交换系统的多个操作员站。 紧急呼叫路由到与PSAP相关联的交换系统的终端。 每个终端端口经由其相关线路连接到多个操作员站中的一个，从而建立从电话到操作员站的路径，呼叫电话的CPN被传送到所选择的操作员站，并且操作员站获得 根据CPN的电话的位置信息，然后显示。

公开(公告)号：US4889679A

公开(公告)日：1989-12-26

申请号：US156494

申请日：1988-02-16

申请人： David A. Snyder ,  Johnny J. Anderson

发明人： David A. Snyder ,  Johnny J. Anderson

IPC分类号： G01B7/00 ,  B21D39/08 ,  B21D39/20 ,  B21D53/08 ,  F22B37/00 ,  G01B7/12 ,  G01B7/13 ,  G01N27/90 ,  G21C17/003

CPC分类号： B21D39/203 ,  F22B37/003 ,  G01B7/13 ,  G01N27/902 ,  Y10T29/49375

摘要： Eddy current probe apparatus having an expansible sleeve thereon capable of hydraulically diametrically expanding a tubular member into engagement with an adjacent structure and capable of hydraulically diametrically expanding a tubular sealing member disposed in the tubular member into engagement with the interior wall of the tubular member, which probe is capable also of detecting the location of the structure and the extent of diametrical expansion of the sealing member and tubular member. The apparatus comprises a support body, expansion means sealingly attached to and surrounding the support body for diametrically expanding the tubular member or sealing member, and electromagnetic means connected to the support body for continuously electromagnetically detecting the variations in the electromagnetic characteristics of the tubular member, sealing member, and structure and the extent of diametrical expansion of the tubular member and sealing member.

摘要翻译： 具有其上可膨胀套管的涡流探针装置能够将管状构件液压地径向膨胀成与相邻结构接合并且能够液压地径向地膨胀设置在管状构件中的管状密封构件，以与管状构件的内壁接合， 探头还能够检测结构的位置和密封构件和管状构件的直径膨胀的程度。 该装置包括支撑体，密封地附接到支撑体并围绕支撑体的膨胀装置，用于径向扩张管状构件或密封构件;以及连接到支撑体的电磁装置，用于连续地电磁检测管状构件的电磁特性的变化， 密封构件，以及管状构件和密封构件的直径膨胀的结构和程度。

公开(公告)号：US4369633A

公开(公告)日：1983-01-25

申请号：US299215

申请日：1981-09-03

申请人： David A. Snyder

发明人： David A. Snyder

IPC分类号： F04B25/02 ,  F25B1/10 ,  F25B5/00

CPC分类号： F04B25/02 ,  F25B1/10

摘要： A multiple stage compression system, as used in refrigeration apparatus, includes an injection assembly for flash gas resulting from expansion of high-pressure liquid refrigerant. The vapor fraction of the expanded mixture of vapor and liquid is injected by the injection assembly into a compression chamber therefor, and the repressurized vapor fraction mixed with the output of a high pressure compression stage to provide the high-pressure refrigerant. The assembly is removably attached to the compressor, and includes valved passages for the flash gas to and from the compression chamber therefor. The flash gas compression chamber is integrally formed within a piston of the high pressure compression stage for the refrigerant.

摘要翻译： 在制冷装置中使用的多级压缩系统包括由高压液体制冷剂膨胀而产生的闪蒸气体的注入组件。 蒸气和液体的膨胀混合物的蒸汽分数通过注入组件注入其压缩室，并且再加压的蒸气馏分与高压压缩级的输出混合以提供高压制冷剂。 组件可移除地附接到压缩机，并且包括用于闪蒸气体到压缩室的压缩通道和用于其的压缩室的阀通道。 闪蒸气体压缩室一体地形成在用于制冷剂的高压压缩级的活塞内。