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    Method and apparatus for testing piston seals
    1.
    发明授权
    Method and apparatus for testing piston seals 有权
    用于测试活塞密封件的方法和装置

    公开(公告)号：US08935954B2

    公开(公告)日：2015-01-20

    申请号：US13611542

    申请日：2012-09-12

    申请人： Sunil Nandwani ,  Ranajit Ghosh ,  John S. Agapiou

    发明人： Sunil Nandwani ,  Ranajit Ghosh ,  John S. Agapiou

    IPC分类号： G01M13/02

    CPC分类号： G01M15/02

    摘要： A seal testing apparatus includes a clamp assembly which receives, secures and rotates a piston and seal assembly, a mandrel which extends into the seal assembly and supports a guide which carries a spring biased sensing probe or tooth which is oriented along the axis of the mandrel. In another embodiment, the components are the similar except that the probe or tooth is disposed in the mandrel and extends circumferentially. In both embodiments, data from an optical, laser or acoustic sensor is analyzed to determine the integrity of the piston seal. Yet another embodiment includes an arbor which rotates the seal and an adjacent contra-rotating cylinder having a conical mirror. As the seal, arbor and cylinder rotate, light reflected off the mirror and the seal, and returned to the mirror and a sensor provide data which is again analyzed to determine the integrity of the piston seal.

    摘要翻译： 密封件测试装置包括夹紧组件，该组件接收，固定和旋转活塞和密封组件，心轴延伸到密封组件中并支撑导向件，该导向器承载弹簧偏置的感测探头或齿，其沿着心轴的轴线定向 。 在另一个实施例中，组件是类似的，除了探针或齿设置在心轴中并且周向延伸。 在两个实施例中，分析来自光学，激光或声学传感器的数据以确定活塞密封的完整性。 另一个实施例包括使密封件旋转的心轴和具有锥形镜的相邻的反向转动圆柱体。 当密封件，心轴和圆柱体旋转时，从反射镜和密封件反射的光，并返回到镜子，传感器提供数据，再次进行分析，以确定活塞密封的完整性。

    Method for evaluating the accuracy and repeatability of leak testing instruments
    2.
    发明授权
    Method for evaluating the accuracy and repeatability of leak testing instruments 有权
    泄漏检测仪器的精度和重复性的评估方法

    公开(公告)号：US09074959B2

    公开(公告)日：2015-07-07

    申请号：US13593773

    申请日：2012-08-24

    申请人： Ranajit Ghosh ,  Sunil Nandwani ,  John S. Agapiou ,  Paul W. Tanis

    发明人： Ranajit Ghosh ,  Sunil Nandwani ,  John S. Agapiou ,  Paul W. Tanis

    IPC分类号： G01M3/00

    CPC分类号： G01M3/007

    摘要： A method of determining the accuracy and repeatability of leak testing instrumentation comprises the following steps: providing a two chamber vessel having an access port and a flow controlling reference orifice associated with each chamber and a third reference orifice communicating between the two chambers, providing a leak testing device and connecting such leak testing device first to one of such ports, pressurizing the associated chamber and, with the associated orifice open, observing and recording the pressure measured by the leak testing device under test as a function of time. The second test repeats this activity with the other chamber and the other orifice. A third test is undertaken with the third orifice open. One of the chambers is smaller and incorporates a smaller orifice and the other chamber is larger and incorporates a larger orifice thus achieving leak testing under different conditions.

    摘要翻译： 确定泄漏测试仪器的准确性和可重复性的方法包括以下步骤：提供具有与每个腔室相关联的进入口和流动控制基准孔的两室容器，以及在两个腔室之间连通的第三参考孔，提供泄漏 测试装置，并将这种泄漏测试装置首先连接到这些端口之一，对相关联的室加压，并且在相关联的孔口打开时，观察并记录由作为时间的函数的被测试的泄漏测试装置测量的压力。 第二个测试与另一个腔室和另一个孔重复此活动。 第三个孔打开进行第三个测试。 其中一个室较小，并且具有较小的孔口，另一个腔室较大并且包含较大的孔口，从而在不同条件下实现泄漏测试。

    METHOD AND APPARATUS FOR TESTING PISTON SEALS
    3.
    发明申请
    METHOD AND APPARATUS FOR TESTING PISTON SEALS 有权
    测试活塞密封件的方法和装置

    公开(公告)号：US20140069179A1

    公开(公告)日：2014-03-13

    申请号：US13611542

    申请日：2012-09-12

    申请人： Sunil Nandwani ,  Ranajit Ghosh ,  John S. Agapiou

    发明人： Sunil Nandwani ,  Ranajit Ghosh ,  John S. Agapiou

    IPC分类号： G01M15/04

    CPC分类号： G01M15/02

    摘要： A seal testing apparatus includes a clamp assembly which receives, secures and rotates a piston and seal assembly, a mandrel which extends into the seal assembly and supports a guide which carries a spring biased sensing probe or tooth which is oriented along the axis of the mandrel. In another embodiment, the components are the similar except that the probe or tooth is disposed in the mandrel and extends circumferentially. In both embodiments, data from an optical, laser or acoustic sensor is analyzed to determine the integrity of the piston seal. Yet another embodiment includes an arbor which rotates the seal and an adjacent contra-rotating cylinder having a conical mirror. As the seal, arbor and cylinder rotate, light reflected off the mirror and the seal, and returned to the mirror and a sensor provide data which is again analyzed to determine the integrity of the piston seal.

    摘要翻译： 密封件测试装置包括夹紧组件，该组件接收，固定和旋转活塞和密封组件，心轴延伸到密封组件中并支撑导向件，该导向器承载弹簧偏置的感应探针或齿，其沿着心轴的轴线定向 。 在另一个实施例中，组件是类似的，除了探针或齿设置在心轴中并且周向延伸。 在两个实施例中，分析来自光学，激光或声学传感器的数据以确定活塞密封的完整性。 另一个实施例包括使密封件旋转的心轴和具有锥形镜的相邻的反向转动圆柱体。 当密封件，心轴和圆柱体旋转时，从反射镜和密封件反射的光，并返回到镜子，传感器提供数据，再次进行分析，以确定活塞密封的完整性。

    EVALUATION OF LEAK TESTING INSTRUMENTS
    4.
    发明申请
    EVALUATION OF LEAK TESTING INSTRUMENTS 有权
    泄漏试验仪器的评估

    公开(公告)号：US20140053636A1

    公开(公告)日：2014-02-27

    申请号：US13593773

    申请日：2012-08-24

    申请人： Ranajit Ghosh ,  Sunil Nandwani ,  John S. Agapiou ,  Paul W. Tanis

    发明人： Ranajit Ghosh ,  Sunil Nandwani ,  John S. Agapiou ,  Paul W. Tanis

    IPC分类号： G01M3/28

    CPC分类号： G01M3/007

    摘要： A method of determining the accuracy and repeatability of leak testing instrumentation comprises the following steps: providing a two chamber vessel having an access port and a flow controlling reference orifice associated with each chamber and a third reference orifice communicating between the two chambers, providing a leak testing device and connecting such leak testing device first to one of such ports, pressurizing the associated chamber and, with the associated orifice open, observing and recording the pressure measured by the leak testing device under test as a function of time. The second test repeats this activity with the other chamber and the other orifice. A third test is undertaken with the third orifice open. One of the chambers is smaller and incorporates a smaller orifice and the other chamber is larger and incorporates a larger orifice thus achieving leak testing under different conditions.

    摘要翻译： 确定泄漏测试仪器的准确性和可重复性的方法包括以下步骤：提供具有与每个腔室相关联的进入口和流动控制基准孔的两室容器，以及在两个腔室之间连通的第三参考孔，提供泄漏 测试装置，并将这种泄漏测试装置首先连接到这些端口之一，对相关联的室加压，并且在相关联的孔口打开时，观察并记录由作为时间的函数的被测试的泄漏测试装置测量的压力。 第二个测试与另一个腔室和另一个孔重复此活动。 第三个孔打开进行第三个测试。 其中一个室较小，并且具有较小的孔口，另一个腔室较大并且包含较大的孔口，从而在不同条件下实现泄漏测试。

    Method for providing an inerting gas during soldering
    5.
    发明授权
    Method for providing an inerting gas during soldering 有权
    焊接过程中提供惰性气体的方法

    公开(公告)号：US08579182B2

    公开(公告)日：2013-11-12

    申请号：US13449470

    申请日：2012-04-18

    申请人： Chun Christine Dong ,  Victor Wang ,  Jerry Wu ,  Ranajit Ghosh ,  Gregory Khosrov Arslanian

    发明人： Chun Christine Dong ,  Victor Wang ,  Jerry Wu ,  Ranajit Ghosh ,  Gregory Khosrov Arslanian

    IPC分类号： B23K35/12 ,  B23K31/02

    CPC分类号： B23K3/082 ,  B23K1/0016 ,  B23K1/085 ,  B23K1/203 ,  B23K3/0653 ,  B23K3/08 ,  B23K2101/42 ,  H05K3/3468 ,  H05K2203/044

    摘要： Described herein is an apparatus and method for providing an inerting gas during the application of soldering to a work piece. In one aspect, there is provided an enclosure for providing an inerting gas into an atmosphere above a solder reservoir during soldering of a work piece comprising: a tube in fluid communication with an inerting gas source wherein the tube comprises one or more openings for the flow of the inerting gas therethrough, a base wherein the tube resides in therein and comprises an interior volume, a neck comprising an opening and an interior volume in fluid communication with the interior volume of the base, and a cap proximal to the opening wherein the inerting gas source travels through the tube into the interior volume and into the atmosphere through the opening defined by the neck and cap.

    摘要翻译： 这里描述了一种用于在对工件进行焊接的过程中提供惰性气体的装置和方法。 在一个方面，提供了一种用于在工件焊接期间将惰性气体提供到焊料储存器上方的气氛中的外壳，包括：与惰性气体源流体连通的管，其中管包括用于流动的一个或多个开口 的惰性气体通过其中的基部，其中管位于其中并包括内部容积的基部，颈部包括开口和与基部的内部空间流体连通的内部容积，以及靠近开口的盖，其中惰性 气体源通过颈部和盖子限定的开口穿过管进入内部空间并进入大气。

    Method of Metal Processing Using Cryogenic Cooling
    8.
    发明申请
    Method of Metal Processing Using Cryogenic Cooling 有权
    使用低温冷却的金属加工方法

    公开(公告)号：US20120055592A1

    公开(公告)日：2012-03-08

    申请号：US13029289

    申请日：2011-02-17

    申请人： Zbigniew Zurecki ,  Ranajit Ghosh ,  Lisa Ann Mercando ,  Xiaoyi He ,  John Lewis Green ,  David Scott Nelson

    发明人： Zbigniew Zurecki ,  Ranajit Ghosh ,  Lisa Ann Mercando ,  Xiaoyi He ,  John Lewis Green ,  David Scott Nelson

    IPC分类号： C21D6/04 ,  C21D6/00

    CPC分类号： C21D1/667 ,  C21D1/76 ,  C21D9/0056 ,  C21D9/0062 ,  F27B9/12 ,  F27B9/20 ,  F27B9/24 ,  F27D9/00 ,  F27D2009/0081 ,  F27D2009/0086

    摘要： Described herein are a method, an apparatus, and a system for metal processing that improves one or more properties of a sintered metal part by controlling the process conditions of the cooling zone of a continuous furnace using one or more cryogenic fluids. In one aspect, there is provided a method comprising: providing a furnace wherein the metal part is passed therethough on a conveyor belt and comprises a hot zone and a cooling zone wherein the cooling zone has a first temperature; and introducing a cryogenic fluid into the cooling zone where the cryogenic fluid reduces the temperature of the cooling zone to a second temperature, wherein at least a portion of the cryogenic fluid provides a vapor within the cooling zone and cools the metal parts passing therethrough at an accelerated cooling rate.

    摘要翻译： 本文描述了一种用于金属加工的方法，装置和系统，其通过使用一种或多种低温流体控制连续炉的冷却区的工艺条件来改善烧结金属部件的一个或多个特性。 在一个方面，提供了一种方法，包括：提供炉子，其中金属部件在传送带上通过，并且包括热区域和冷却区域，其中冷却区域具有第一温度; 以及将低温流体引入所述冷却区域中，其中所述低温流体将所述冷却区域的温度降低到第二温度，其中所述低温流体的至少一部分在所述冷却区域内提供蒸汽并且冷却通过其中的金属部件， 加速冷却速度。

    Method and apparatus for machining workpieces having interruptions
    9.
    发明授权
    Method and apparatus for machining workpieces having interruptions 有权
    用于加工具有中断的工件的方法和装置

    公开(公告)号：US07634957B2

    公开(公告)日：2009-12-22

    申请号：US11221718

    申请日：2005-09-09

    申请人： Ranajit Ghosh ,  Zbigniew Zurecki ,  Lance Michael Grimm

    发明人： Ranajit Ghosh ,  Zbigniew Zurecki ,  Lance Michael Grimm

    IPC分类号： B23B27/00 ,  B23B1/00

    CPC分类号： B23Q11/1053 ,  B23B27/10 ,  B23B2205/16 ,  B23C5/28 ,  Y10S82/90 ,  Y10S82/901 ,  Y10T82/10

    摘要： This invention is a method and apparatus for cutting a workpiece which may have interruptions, with a cutting insert having a cutting edge, where the cutting insert is held in a tool holder and is optionally supported by a shim. Coolant, which may contain liquid nitrogen, is introduced through a passageway to a cooling passage located near the cutting edge. The cooling passage may be located either under, behind, or under and behind the cutting edge. Coolant impacts the wall surfaces of the cooling passage near the cutting edge where it is partly evaporated thereby cooling the cutting insert.

    摘要翻译： 本发明是一种用于切割可能具有中断的工件的方法和装置，其中切削刀片具有切削刃，其中切削刀片保持在刀架中并且可选地由垫片支撑。 可能含有液氮的冷却剂通过通道引入位于切削刃附近的冷却通道。 冷却通道可以位于切割边缘的下方，后面或下方和后方。 冷却液冲击靠近切割边缘的冷却通道的壁表面，在那里部分蒸发，从而冷却切削刀片。