公开(公告)号：US4199403A

公开(公告)日：1980-04-22

申请号：US853714

申请日：1977-11-21

申请人： Arun Puri ,  John F. Mullooly

发明人： Arun Puri ,  John F. Mullooly

IPC分类号： G21C15/02 ,  G21C5/10 ,  G21C15/00

CPC分类号： G21C5/10 ,  Y02E30/40

摘要： An improved core shroud for a nuclear reactor employs cylindrical bands that surround a coolant boundary and reinforce it by means of support members that engage the coolant boundary and the bands.

摘要翻译： 用于核反应堆的改进的芯护罩采用围绕冷却剂边界的圆柱形带，并通过与冷却剂边界和带接合的支撑构件来加固。

公开(公告)号：US5914055A

公开(公告)日：1999-06-22

申请号：US65886

申请日：1998-04-24

申请人： Blaine W. Roberts ,  William H. Zielke ,  Arun Puri ,  Michael Jirinec ,  Frank Novak

发明人： Blaine W. Roberts ,  William H. Zielke ,  Arun Puri ,  Michael Jirinec ,  Frank Novak

IPC分类号： B23K9/04 ,  F01D5/00

CPC分类号： B23P6/007 ,  B23K9/044 ,  F01D5/005 ,  B23K2201/001

摘要： A system for repairing worn, distorted, cracked, or degraded portions of high temperature rotors such as those used in high-pressure and reheat steam turbines is disclosed. The repairs are applicable to low alloy steels generally described in ASTM Specification A-470 classes 3, 7, and 8. Explicit controls on the welding process, the welding consumables, and the placement of the weld fusion line are disclosed. For the welding process, a novel staging of the "relative heat input" for applying the initial cold wire gas tungsten arc weld (GTAW) buttering layer is disclosed. Significantly, the optimum weldment properties are achieved in the cold wire GTAW by utilizing a lower heat input for the crucial second layer relative to the first layer. Faster deposition or weld build-up is achieved over the buttering layer by applying the balance of welding through utilization of the hot-wire GTAW process. Hot-wire weld integrity is assured by control of a helium-argon cover gas mixture, application of a trailing gas shroud, weld-head oscillation, and control of the wire insertion point into the molten puddle. For the weld deposit, a specially modified 9Cr-1Mo filler metal based on the "Grade 91" alloy developed by the Oak Ridge National Laboratory is selected. Additional stringent controls are placed on the chemical composition of the weld wire. Finally, judicious placement of the weld fusion line to insure long service is achieved by a detailed finite-element stress analysis. Near the fusion line, the stresses are limited to values below the minimum stress-rupture strength of the base metal as described by a correlation using the Larson-Miller time-temperature parameter.

摘要翻译： 公开了一种用于修复诸如在高压和再热汽轮机中使用的高温转子的磨损，变形，破裂或退化部分的系统。 这些修理适用于通常在ASTM规格A-470-3,7和8类中描述的低合金钢。公开了焊接工艺，焊接材料和焊接熔合线的放置的明确控制。 对于焊接过程，公开了一种用于施加初始冷线气体钨电弧焊（GTAW）电镀层的“相对热输入”的新阶段。 重要的是，通过利用相对于第一层的关键第二层的较低热输入，在冷线GTAW中实现最佳焊接性能。 通过利用热丝GTAW工艺应用焊接平衡，可以在涂层上实现更快的沉积或焊接。 通过控制氦氩气覆盖气体混合物，施加尾气罩，焊接头振荡以及将熔丝插入点控制在熔融熔池中来确保热丝焊接完整性。 对于焊接沉积物，选择了由Oak Ridge国家实验室开发的基于“91级”合金的特殊改性的9Cr-1Mo填充金属。 额外的严格控制放置在焊丝的化学成分上。 最后，通过详细的有限元应力分析实现了焊接熔合线的明智放置以确保长期使用。 在融合线附近，如通过使用Larson-Miller时间 - 温度参数的相关性所述，应力被限制在低于贱金属的最小应力 - 断裂强度的值。

公开(公告)号：US09072637B1

公开(公告)日：2015-07-07

申请号：US14065535

申请日：2013-10-29

申请人： Kathleen F. Puri ,  Arun Puri ,  Caroline F. Puri ,  John C. Ekholm

发明人： Kathleen F. Puri ,  Arun Puri ,  Caroline F. Puri ,  John C. Ekholm

IPC分类号： A61G7/05 ,  A47G23/02 ,  B60N3/10

CPC分类号： A61G7/0503 ,  A47G23/0225 ,  A61G7/05 ,  A61G7/0507 ,  A61J1/16 ,  B60N3/106

摘要： A caddy for use with hospital staff or patients provides a rigid housing having a cradle which supports a container with at least one vertically and, preferably, at least one horizontally accessible compartments. A back of the cradle connects to a connector which connects to a hospital bed rail at a pivot to maintain the container in a pre-determined relationship while the rail is angled relative to a horizontal surface. The container is preferably removable relative to the cradle.

摘要翻译： 与医院工作人员或患者一起使用的球童提供了具有支架的刚性壳体，该支架支撑具有至少一个垂直且优选至少一个水平可接近的隔室的容器。 托架的后部连接到连接器，该连接器在枢轴处连接到医院床轨，以在轨道相对于水平表面成角度的同时将容器保持在预定关系。 容器优选地相对于支架是可移除的。

公开(公告)号：US4753768A

公开(公告)日：1988-06-28

申请号：US541032

申请日：1983-10-12

申请人： Arun Puri

发明人： Arun Puri

IPC分类号： F16J15/46 ,  G21C13/028 ,  G21C13/00

CPC分类号： G21C13/028 ,  F16J15/46 ,  Y02E30/40 ,  Y10S277/921

摘要： An improvement in a reactor cavity pool seal which includes a seal plate between the reactor and the cavity wall and an inflatable annular seal, wherein the inflatable seal operates between a seal ring and bearing plate which are elements in addition to the seal plate and cavity wall, thereby eliminating problems of eccentricity and clearance.

摘要翻译： 反应堆空腔池密封件的改进，其包括在反应器和空腔壁之间的密封板和可充气的环形密封件，其中可充气密封件在密封环和轴承板之间操作，所述密封环和轴承板除了密封板和空腔壁之外 ，从而消除了偏心和间隙的问题。