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公开(公告)号：US08453495B2
公开(公告)日：2013-06-04
申请号：US12923583
申请日：2010-09-29
IPC分类号： G01M3/04
CPC分类号： G01M3/26
摘要： A test head assembly for supporting at least a portion of a protective mask to be tested for leaks. Preferably, the test head assembly includes a test head having a test space that is generally coextensive with an inner surface of the protective mask being tested. Although the test space is generally coextensive with the inner surface of the protective mask being tested, it is designed such that it has minimal volume to enhance the testing process by expediting test response time, reducing the time period it takes for a mask tester to reach one or more prerequisite test conditions, eliminate or greatly reduce lag time when the mask tester is operating in the probe mode and prevent dilution of challenge concentration. Preferably, the test head is formed from two or more removable sections to allow the size of the test head to be readily modified.
摘要翻译： 一种测试头组件，用于支撑待测试的防护面罩的至少一部分泄漏。 优选地，测试头组件包括具有与被测试的防护罩的内表面大致共同延伸的测试空间的测试头。 虽然测试空间通常与正在测试的防护罩的内表面共同延伸，但是它被设计成使得其具有最小的体积以通过加快测试响应时间来增强测试过程，从而减少掩模测试仪达到的时间周期 一个或多个先决条件测试条件，消除或大大减少掩模测试仪在探针模式下运行时的滞后时间，并防止挑战浓度的稀释。 优选地，测试头由两个或更多个可移除部分形成，以允许容易地修改测试头的尺寸。
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公开(公告)号：US20120073359A1
公开(公告)日：2012-03-29
申请号：US12923583
申请日：2010-09-29
IPC分类号： G01M3/04
CPC分类号： G01M3/26
摘要： An apparatus for use in testing a protective mask for leaks. The apparatus includes a test head assembly for supporting at least a portion of a protective mask to be tested for leaks. The test head assembly may be freestanding or it may be mounted directly on the mask tester. Preferably, the test head assembly includes a test head having a test space. The test space is operably associated with a mask tester such that a fluid from the test space is directed to the mask tester for analysis to determine if a leak exists in the mask. The test space is generally coextensive with the inner surface of the protective mask being tested. Although the test space is generally coextensive with the inner surface of the protective mask being tested, it is designed such that it has minimal volume to enhance the testing process by expediting test response time, reducing the time period it takes for a mask tester to reach one or more prerequisite test conditions (e.g., a predetermined vacuum), eliminate or greatly reduce lag time when the mask tester is operating in the probe mode (i.e., the mode used to isolate the location of a leak) and prevent dilution of challenge concentration. Preferably, the test is shaped to permit a protective mask to be readily mounted on the test head in a fluid tight manner. Preferably, the test head is formed from two or more removable sections to allow the size of the test head to be readily modified without replacing the entire test head. An optional perfect mask or test shroud may be mounted about the test head to ensure that the mask tester is not erroneously detecting leaks in a protective mask being tested.
摘要翻译： 用于测试用于泄漏的防护罩的装置。 该装置包括用于支撑待测试的防护面罩的至少一部分用于泄漏的测试头组件。 测试头组件可以是独立的，或者可以直接安装在掩模测试器上。 优选地，测试头组件包括具有测试空间的测试头。 测试空间与掩模测试仪可操作地相关联，使得来自测试空间的流体被引导到掩模测试器进行分析以确定掩模中是否存在泄漏。 测试空间通常与被测试的防护罩的内表面共同延伸。 虽然测试空间通常与正在测试的防护罩的内表面共同延伸，但是它被设计成使得其具有最小的体积以通过加快测试响应时间来增强测试过程，从而减少掩模测试仪达到的时间周期 一个或多个先决条件测试条件（例如，预定的真空），当掩模测试仪以探针模式操作时（即，用于隔离泄漏位置的模式）消除或大大减少滞后时间，并防止挑战浓度的稀释 。 优选地，测试被成形为允许以流体密封的方式容易地将防护面罩安装在测试头上。 优选地，测试头由两个或更多个可移除部分形成，以允许在不更换整个测试头的情况下容易地修改测试头的尺寸。 可以围绕测试头安装可选的完美掩模或测试护罩，以确保掩模测试仪不会错误地检测被测试的防护罩中的泄漏。
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公开(公告)号：US08196454B2
公开(公告)日：2012-06-12
申请号：US12654173
申请日：2009-12-11
申请人： Eric Hanson , Colin Gordon Hodge , Gilbert Olvera
发明人： Eric Hanson , Colin Gordon Hodge , Gilbert Olvera
摘要： An apparatus for testing a protective mask. The apparatus includes a testing unit for testing a protective mask. The testing unit includes a headform upon which a protective mask to be tested is mounted. The testing unit is configured to take a sample of the challenge from two different locations about the protective mask. The testing unit may also be configured to inflate and deflate a neck seal protective mask when mounted on the headform prior to performing a mask leakage test to eliminate or significantly reduce pockets or folds that may hide a leak.
摘要翻译： 一种用于测试防护面具的装置。 该装置包括用于测试防护罩的测试单元。 测试单元包括头盔，在其上安装待测试的防护面罩。 测试单元被配置为从围绕防护罩的两个不同位置拍摄挑战的样本。 测试单元还可以被配置为在执行掩模泄漏测试之前将颈部密封防护罩充气并放气，以防止或显着减少可能隐藏泄漏的口袋或褶皱。
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公开(公告)号：US20110138884A1
公开(公告)日：2011-06-16
申请号：US12654173
申请日：2009-12-11
申请人： Eric Hanson , Colin Gordon Hodge , Gilbert Olvera
发明人： Eric Hanson , Colin Gordon Hodge , Gilbert Olvera
IPC分类号： G01M3/04
摘要： An apparatus for testing a protective mask. The apparatus includes a testing unit for testing a protective mask. The testing unit includes a headform upon which a protective mask to be tested is mounted. The testing unit is configured to take a sample of the challenge from two different locations about the protective mask. The testing unit may also be configured to inflate and deflate a neck seal protective mask when mounted on the headform prior to performing a mask leakage test to eliminate or significantly reduce pockets or folds that may hide a leak.
摘要翻译： 一种用于测试防护面具的装置。 该装置包括用于测试防护罩的测试单元。 测试单元包括头盔，在其上安装待测试的防护面罩。 测试单元被配置为从围绕防护罩的两个不同位置拍摄挑战的样本。 测试单元还可以被配置为在执行掩模泄漏测试之前将颈部密封防护罩充气并放气，以防止或显着减少可能隐藏泄漏的口袋或褶皱。
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公开(公告)号：US20080236305A1
公开(公告)日：2008-10-02
申请号：US11727998
申请日：2007-03-29
IPC分类号： G01N17/00
CPC分类号： G01N17/002 , B01D2273/18
摘要： The preferred form of the present invention is directed to systems and methods used to test objects including but not limited to filters, respirator cartridges and filter media. The object to be tested is subjected to an aerosol challenge while the penetration percentage and resistance at a given flow are monitored to ensure that the object will function as desired. Preferably, the test object is challenged with a salt aerosol. However, any suitable aerosol may be used. A replenishment member is provided for automatically and continuously replenishing the reservoir of an aerosol generator. The replenishment member is configured such that there is no need for an operator to monitor the liquid level in the aerosol generator reservoir either during replenishment or at anytime while the apparatus is operated. The replenishment member of the preferred form of the present invention does not require interruption of the filter testing process to replenish the aerosol generator reservoir. The preferred form of the present invention supplies heated air to the aerosol generator reservoir to significantly reduce the liquid needed to be collected in the drip jar of the impactor. This feature prolongs the run time of the test system. A control device is operably associated with the heater to activate and deactivate the heater depending upon detection of pressurized gas supplied to the aerosol generator. This feature prevents the heater from irreparably damaging the test unit and/or the surrounding environment.
摘要翻译： 本发明的优选形式涉及用于测试物体的系统和方法，包括但不限于过滤器，呼吸器筒和过滤介质。 要测试的对象受到气溶胶攻击，同时监测给定流量下的渗透百分比和阻力，以确保物体将按需要起作用。 优选地，用盐气溶胶攻击测试对象。 然而，可以使用任何合适的气溶胶。 提供补充构件用于自动和连续地补充气溶胶发生器的储存器。 补充构件被构造成使得不需要操作者在补充期间或在装置操作期间的任何时间监测气溶胶发生器储存器中的液位。 本发明优选形式的补充构件不需要中断过滤器测试过程来补充气溶胶发生器储存器。 本发明的优选形式将加热的空气供应到气溶胶发生器储存器，以显着减少需要收集在冲击器的滴水罐中的液体。 此功能可延长测试系统的运行时间。 控制装置与加热器可操作地相关联，以根据检测到供应到气溶胶发生器的加压气体来启动和停用加热器。 该功能可防止加热器对测试单元和/或周围环境造成不可修复的损害。
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