公开(公告)号：US20090249865A1

公开(公告)日：2009-10-08

申请号：US11996427

申请日：2006-07-07

申请人： Yoshiaki Takigahira

发明人： Yoshiaki Takigahira

IPC分类号： G01M3/34

CPC分类号： F16J15/38

摘要： A mechanical seal device capable of preventing a sealing ability from being lowered by the irregular displacement of the seal surface of a sealing ring and by the deterioration of a packing for sealingly fitting the sealing ring by heat generated due to its slidable contact with the sealing ring. The mechanical seal device comprises the rubberlike elastic material annular packing having a joining face fitted peripheral surface (inner peripheral surface ) of a stepped hole and an adhesive face on the inner peripheral side of the joining face and having an insertion tip part at its insertion tip inserted into the fitting peripheral surface and the sealing ring for fixing having a fitting surface joined to the adhesive face of the packing, a rear surface fitted to the support face (bottom face ) of the stepped hole, and a seal surface on the opposite side of the rear surface. With the rear surface joined to a support surface, a space part is formed between the insertion tip part and the opposite surface thereto on the support surface side. The packing is inserted into the space part to fit the rear surface onto the support face by the elastic force of the packing.

摘要翻译： 一种机械密封装置，其能够防止由于密封环的密封面的不规则位移而导致的密封性降低，并且由于与密封环滑动接触而产生的热量密封地密封密封环的密封件的劣化 。 机械密封装置包括橡胶状弹性材料环形填料，其具有接合面嵌合的台阶孔的周面（内周面）和接合面的内周侧的粘合面，并且在其插入端具有插入末端部 插入配合周面和用于固定的密封环，该密封环具有接合到衬垫的粘合面的配合表面，安装在台阶孔的支撑面（底面）上的后表面和在相对侧上的密封表面 的后表面。 在后表面连接到支撑表面的情况下，在支撑表面侧的插入尖端部分和与其相对的表面之间形成空间部分。 填料被插入空间部分中，以通过包装的弹力将后表面装配到支撑面上。

公开(公告)号：US07454957B2

公开(公告)日：2008-11-25

申请号：US11828495

申请日：2007-07-26

申请人： Martin Lehmann

发明人： Martin Lehmann

IPC分类号： G01M3/32 ,  G01M3/34

CPC分类号： G01M3/04 ,  B65B3/04 ,  G01M3/22 ,  G01M3/226 ,  G01M3/3263 ,  G01M3/3281 ,  G01M3/329 ,  G08B21/20 ,  Y10T29/49771 ,  Y10T29/53022

摘要： For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

摘要翻译： 对于密封容器（9）的泄漏测试，其中填充有包含至少一种液体组分的填充产品，容器被引入至少抽真空至该液体组分的蒸气压的测试空腔（1）中。 监测容器（9）周围并因此在测试腔（1）内的压力。 通过真空压力传感器（7）进行监视，而通过真空泵（5）执行围绕容器（9）的降低压力。 通过监测容器周围的压力变化来检测泄漏，这是由于泄漏出现的液体蒸发而在低压环境中蒸发。

公开(公告)号：US20080163677A1

公开(公告)日：2008-07-10

申请号：US11813684

申请日：2005-12-13

申请人： Daniel W. Mayer

发明人： Daniel W. Mayer

IPC分类号： G01M3/34

CPC分类号： G01M3/3272

摘要： An instrument (10) for detecting and reporting the location of a leak in thin-walled hermetically sealed packaging (100) as between a seal leak and a side-wall leak. The instrument (10) includes a needle (20), a vacuum pump (40), and a means for creating at least two different steady-state differential pressure values across the packaging (100), a mass flow rate sensor (50), and at least one pressure sensor (31), a device for generating a perceptible signal (70) and a processor (60). The instrument (10) is operative for sensing the external pressure outside the packaging's (100) retention chamber, sensing the internal pressure within the retention chamber and transmitting an internal pressure signal, sensing the mass flow rate of gas pulled from the retention chamber, calculating flow rates and differential pressures thus indicating leaks.

摘要翻译： 一种用于在密封泄漏和侧壁泄漏之间检测和报告薄壁密封包装（100）中的泄漏位置的仪器（10）。 仪器（10）包括针（20），真空泵（40）和用于在整个包装（100）上产生至少两个不同稳态差压值的装置，质量流量传感器（50） 和至少一个压力传感器（31），用于产生可感知信号的装置（70）和处理器（60）。 仪器（10）可操作用于感测包装（100）保持室外部的外部压力，检测保持室内部的内部压力，并传输内部压力信号，检测从保持室拉出的气体的质量流量，计算 流速和差压，因此表明泄漏。

公开(公告)号：US20080163668A1

公开(公告)日：2008-07-10

申请号：US11650686

申请日：2007-01-08

申请人： Anthony D. Kurtz ,  Joseph Van DeWeert ,  Richard J. Martin

发明人： Anthony D. Kurtz ,  Joseph Van DeWeert ,  Richard J. Martin

IPC分类号： G01M3/26 ,  G01M3/34

CPC分类号： G01M3/3236 ,  B64C25/60

摘要： A leak detector apparatus for a pressurized cylinder having a cylinder of a radius (r) with a slidable piston in the cylinder with a gas filled chamber positioned between a cylinder end and the piston face. The length (L) of the chamber is calculated according to load changes on the piston where the volume (Vc) of the chamber changes. The pressure and temperature of the chamber are measured as well as the length. These values are inputted to a processor to solve the ideal gas law equation PV=nRT where a change in n for a change in length indicates a leak.

摘要翻译： 一种用于加压缸的泄漏检测装置，其具有半径（r）的圆柱体，其中气缸中的可滑动活塞具有位于气缸端部和活塞面之间的充气室。 腔室的长度（L）根据腔室体积（V SUB）的活塞的负荷变化而变化。 测量室的压力和温度以及长度。 这些值被输入到处理器以求解理想气体定律方程PV = nRT，其中长度变化的n中的变化表示泄漏。

公开(公告)号：US07210337B1

公开(公告)日：2007-05-01

申请号：US11163388

申请日：2005-10-17

申请人： Mark J. Jarrett

发明人： Mark J. Jarrett

IPC分类号： G01M3/34

CPC分类号： G01M3/3281

摘要： Methods and apparatus are provided for detecting leaks in a MEMS sensor package, and in particular, a MEMS sensor package that includes an oscillating structure or element that has a Quality (Q) value. The method and apparatus may include measuring the Q value of the MEMS sensor at a first time, applying a pressure to the outside of the MEMS sensor package, and measuring the Q value of the MEMS sensor at a second time after pressure has been applied for a period of time. A change in the measured Q values between the first time and the second time may be determined, which may then be correlated to a leak rate for the particular MEMS sensor package. In some cases, a leak rate of 2×10−13 He atm.cc/s or less may be detected.

摘要翻译： 提供了用于检测MEMS传感器封装中的泄漏的方法和装置，特别是包括具有质量（Q）值的振荡结构或元件的MEMS传感器封装。 该方法和装置可以包括在第一时间测量MEMS传感器的Q值，向MEMS传感器封装的外部施加压力，并且在施加压力之后的第二时间测量MEMS传感器的Q值 一段时间。 可以确定第一时间和第二时间之间的测量Q值的变化，其然后可以与特定MEMS传感器封装的泄漏率相关。 在某些情况下，可以检测到2×10 -6 -Th at at.cc/s以下的泄漏率。

公开(公告)号：US07040143B2

公开(公告)日：2006-05-09

申请号：US10651311

申请日：2003-08-28

申请人： David L. Johnson ,  Karl D. Kersker ,  David E. Richardson ,  Troy C. Stratton

发明人： David L. Johnson ,  Karl D. Kersker ,  David E. Richardson ,  Troy C. Stratton

IPC分类号： G01M3/34

CPC分类号： G01N19/08 ,  G01M3/26 ,  G01M3/3281 ,  G01N3/12

摘要： A method, apparatus and system for testing characteristics of a material sample is provided. The system includes an apparatus configured to house the material test sample while defining a sealed volume against a surface of the material test sample. A source of pressurized fluid is in communication with, and configured to pressurize, the sealed volume. A load applying apparatus is configured to apply a defined load to the material sample while the sealed volume is monitored for leakage of the pressurized fluid. Thus, the inducement of surface defects such as microcracking and crazing may be detected and their effects analyzed for a given material. The material test samples may include laminar structures formed of, for example, carbon cloth phenolic, glass cloth phenolic, silica cloth phenolic materials or carbon-carbon materials. In one embodiment the system may be configured to analyze the material test sample while an across-ply loading is applied thereto.

摘要翻译： 提供了一种用于测试材料样品特性的方法，设备和系统。 该系统包括被配置为容纳材料测试样品的装置，同时限定与材料测试样品的表面相对的密封体积。 加压流体源与密封容积连通并且构造成加压密封体积。 负载施加装置被配置为在密封容积被监测加压流体的泄漏的同时将限定的负载施加到材料样品。 因此，可以检测到表面缺陷如微裂纹和裂纹的诱导，并且对给定材料分析其影响。 材料测试样品可以包括由例如碳布酚醛，玻璃布酚醛，二氧化硅布酚醛材料或碳 - 碳材料形成的层状结构。 在一个实施例中，系统可以被配置为在将材料测试样品施加到其上的情况下分析材料测试样品。

公开(公告)号：US06843107B2

公开(公告)日：2005-01-18

申请号：US10641545

申请日：2003-08-15

申请人： John W. Newman ,  Steve Thayer

发明人： John W. Newman ,  Steve Thayer

IPC分类号： G01M3/38 ,  G01M20060101 ,  G01M3/02 ,  G01M3/26 ,  G01M3/34 ,  G01M3/36 ,  G01N21/88

CPC分类号： G01M3/363 ,  G01N2201/0227 ,  G03H1/0443

摘要： A system and method for leak testing a plurality of hermetic electronic packages of the type that have an internal chamber that is isolated from ambient conditions by a seal structure is advantageously designed to be able to calculate the leak rate of each individual device in a manner that is independent of structural manufacturing variances that typically exist within a sampling of such devices. The method preferably involves positioning a plurality of the hermetic electronic packages within a test area, and then stimulating the hermetic electronic packages with a modulated input of energy, such as by varying the ambient pressure about the devices. A property such as the physical position of one portion of a lid of each of the hermetic electronic packages is then sensed. The sensed property is one that is known to change as a first function of the modulated input of energy and also as a second function of pressure conditions within the hermetically sealed internal chamber. The first and second functions are linearly independent of each other. By comparing the stimulation of the devices to the sensed property and by discriminating using the two known functions a leak rate is determined for each individual device that is substantially independent of variances, such as differences in lid thickness that may exist between the different devices. Accordingly, an accurate determination of leak rate may be made with a minimum of calibration.

摘要翻译： 用于对具有通过密封结构与环境条件隔离的内部室的多个密封电子封装进行泄漏测试的系统和方法有利地设计成能够以下述方式计算每个单独设备的泄漏率： 独立于通常存在于这种设备的采样内的结构制造差异。 该方法优选地包括将多个密封电子封装定位在测试区域内，然后用调制的能量输入来刺激密封电子封装，例如通过改变围绕器件的环境压力。 然后感测诸如每个密封电子包装件的盖子的一部分的物理位置的属性。 感测的特性是已知的作为调制的能量输入的第一函数而变化的属性，并且还作为密封的内部腔室内的压力条件的第二函数。 第一和第二功能彼此线性独立。 通过将装置的刺激与感测到的属性进行比较，并且通过使用两个已知功能进行区分，确定每个单独装置的泄漏率基本上不依赖于方差，例如可能存在于不同装置之间的盖厚度的差异。 因此，可以用最小的校准来进行泄漏率的精确确定。

公开(公告)号：US6105419A

公开(公告)日：2000-08-22

申请号：US892316

申请日：1997-07-14

申请人： John Michels ,  Pat Bierschenk

发明人： John Michels ,  Pat Bierschenk

IPC分类号： B65B57/00 ,  G01M3/32 ,  G01M3/34

CPC分类号： G01M3/329

摘要： An apparatus for inspecting sealed packages of product includes a conveyor belt for receiving the packages. An inspection belt contacts the packages and moves away from the conveyor belt a particular distance depending on whether the packages are properly sealed. When engaged by a package with a good seal, the inspection belt is moved a first distance which causes an indicator carried thereon to send a signal which prevents removal of the good package from the conveyor belt. However, when a leaky bag contacts the inspection belt, the inspection belt is moved a second distance which is insufficient to cause the indicator to send a signal. Consequently, the improperly sealed package is removed from the conveyor belt. The inspection belt may be mounted for linear or pivotal movement upon being contacted by the packages carried by the conveyor belt. In addition, a package engaging member can be used to press the packages prior to passing under the inspection belt to facilitate the discharge of air from leaky packages, e.g., pre-squeezing the packages.

摘要翻译： 用于检查产品的密封包装的装置包括用于接收包装的传送带。 检查带与包装件接触并且取决于包装件是否被适当地密封而离开传送带一定的距离。 当由具有良好密封的包装件接合时，检查带移动第一距离，使得其上携带的指示器发送阻止从传送带移除良好包装的信号。 然而，当泄漏袋与检查带接触时，检查带移动第二距离，这不足以使指示器发送信号。 因此，将不正确密封的包装从传送带中取出。 检查带可以安装成在被传送带承载的包装件接触时线性或枢转运动。 此外，包装接合构件可以用于在通过检查带之前按压包装，以便于泄漏包装排出空气，例如预先挤压包装。

公开(公告)号：US5898104A

公开(公告)日：1999-04-27

申请号：US880820

申请日：1997-06-24

申请人： Russell W. Rohrssen ,  Frank W. Simmons

发明人： Russell W. Rohrssen ,  Frank W. Simmons

IPC分类号： G01M3/32 ,  G01M3/34 ,  B01D21/28

CPC分类号： G01M3/3272

摘要： A feed assembly for a pack seal tester includes a vertically extending housing having a top opening for receipt of packages therein and a bottom opening for discharge of packages therefrom. The housing includes a feed hopper comprised of two parallel movable opposed spaced C-shaped sidewalls. A piston plate is aligned to remove packages from the bottom opening and into a package test chamber, the package test chamber being in alignment with the bottom opening. The package test chamber includes means to align said packages at a preselected position for testing by a pack seal tester.

摘要翻译： 用于包装密封测试仪的进料组件包括垂直延伸的壳体，其具有用于接收包装的顶部开口和用于从其中排出包装的底部开口。 壳体包括由两个平行的可移动的相对隔开的C形侧壁组成的进料斗。 对准活塞板以将包装从底部开口排出并进入包装测试室，包装测试室与底部开口对齐。 包装测试室包括将所述包装对准在预选位置以通过包装密封测试仪进行测试的装置。

公开(公告)号：US5216914A

公开(公告)日：1993-06-08

申请号：US861263

申请日：1992-03-31

申请人： Jack R. Horner

发明人： Jack R. Horner

IPC分类号： G01M3/34

CPC分类号： G01M3/34

摘要： A method and system for detecting a leak in a high vapor-evolving hydrocarbon liquid underground storage tank filled incompletely with the liquid, wherein there is a projecting fill pipe connected with the ullage which is filled with hydrocarbon vapor and air. A vacuum source is connected to the fill pipe for withdrawing the atmosphere of the ullage and imposing a prescribed negative pressure. While some of the drawn off vapor and much of the air is exhausted to atmosphere, a significant portion of the ullage content is recirculated to build the relative proportion of hydrocarbon vapor to air in the ullage. The ullage is then isolated from the vacuum source and atmosphere, and allowed to stabilize over a predetermined time period with a reduced rate of hydrocarbon vapor release into the ullage. The recirculation and stabilization are then repeated to achieve further saturation of the ullage with gasoline vapor and vacuum is applied to the ullage to reach a predetermined threshold negative pressure in the ullage. Over a predetermined time period successive negative pressure readings are taken to determine if there is a rate of decay which indicates the existence of a leak in the tank.

摘要翻译： 一种用于检测与液体不完全填充的高蒸气放出的烃液地下储罐中的泄漏的方法和系统，其中存在与填充有烃蒸汽和空气的空缺相连的突出填充管。 真空源连接到填充管，用于抽出空气的空气并施加规定的负压。 虽然一些排出的蒸气和大部分空气被排放到大气中，但是大部分的废液含量被再循环以在烃类空气中构成烃蒸气与空气的相对比例。 然后将空白从真空源和大气中分离出来，并允许在预定时间段内稳定，同时减少碳氢化合物蒸气释放到空气中的速率。 然后重复循环和稳定化，以通过汽油蒸气进一步饱和空气，并将空气施加到空白处以在空位中达到预定的阈值负压。 在预定时间段内，连续的负压读数被采取以确定是否存在指示罐中存在泄漏的衰减速率。