Method of detecting small gas leaks in filled aerosol containers
    1.
    发明授权
    Method of detecting small gas leaks in filled aerosol containers 失效
    检测填充气溶胶容器中小气体泄漏的方法

    公开(公告)号:US3956923A

    公开(公告)日:1976-05-18

    申请号:US541855

    申请日:1975-01-17

    IPC分类号: G01M3/20 G01M3/22 G01M3/32

    摘要: A process and apparatus for detecting small gas leaks in filled, pressurized containers. Each container to be tested, or that portion of each container to be tested, is enclosed and sealed in a test chamber. The space within the test chamber is evacuated to remove any residual gas or liquid within the chamber or on the surfaces of the container. Thereafter, the evacuated chamber is sealed and held for a predetermined period of time to permit any gas leaking from the container to accumulate and diffuse throughout the chamber. A quantity of carrier gas is then introduced into the test chamber and held therein for a predetermined period of time so that the carrier gas and leakage gas may co-mingle and equilibrate. This provides an equilibrated, fixed volume of carrier gas-leakage gas mixture, the leakage gas content of which is dependent only upon the leak rate of the container. The equilibrated mixture is then transferred to a sensor. The signal produced by the sensor for each container tested is compared to the sensor's response to a predetermined leak standard of acceptable value. A method is also provided to compensate for contamination of the carrier gas and for drift of the sensor.

    摘要翻译: 用于检测填充的加压容器中的小气体泄漏的方法和装置。 待测试的每个容器或每个要测试的容器的部分被封闭并密封在测试室中。 将测试室内的空间抽真空以除去腔室内或容器表面上的残留气体或液体。 此后,将真空室密封并保持预定的时间,以允许从容器泄漏的任何气体积聚并扩散到整个室中。 然后将一定数量的载气引入试验室并将其保持在预定的时间段内,以使载气和泄漏气体共混并平衡。 这提供了平衡的固定体积的载气泄漏气体混合物,其泄漏气体含量仅取决于容器的泄漏率。 然后将平衡的混合物转移到传感器。 将由传感器产生的每个容器测试的信号与传感器对可接受值的预定泄漏标准的响应进行比较。 还提供了一种补偿载气污染和传感器漂移的方法。

    Absorbent article having a window with a body-conforming acquisition
element positioned therein
    2.
    发明授权
    Absorbent article having a window with a body-conforming acquisition element positioned therein 失效
    具有窗口的吸收制品,其中定位有符合身体的采集元件

    公开(公告)号:US5662633A

    公开(公告)日:1997-09-02

    申请号:US444079

    申请日:1995-05-17

    IPC分类号: A61F13/15 A61F13/20

    摘要: An absorbent article, such as a sanitary napkin is provided. The sanitary napkin of the present invention has at least one component facing the body surface of the sanitary napkin having a window cut out therein. The sanitary napkin is provided with an acquisition/distribution component such as a tow of resilient fibers having intra-fiber capillary channels. The tow of resilient fibers is positioned so that it at least partially lies in the space defined by the window. The acquisition/distribution component has a compressed configuration and an uncompressed configuration. In its uncompressed configuration, the acquisition/distribution component lies relatively flat behind the window. In its compressed configuration, the acquisition/distribution component forms a hump on the body surface that protrudes from the window.

    摘要翻译: 提供了诸如卫生巾的吸收制品。 本发明的卫生巾具有面向卫生巾的身体表面的至少一个部件,其具有在其中切出的窗口。 卫生巾设置有采集/分配部件,例如具有纤维内毛细通道的弹性纤维丝束。 弹性纤维的丝束被定位成使得其至少部分地位于由窗口限定的空间中。 采集/分配组件具有压缩配置和未压缩配置。 在其未压缩配置中,采集/分配组件在窗口后面相对平坦。 在其压缩构型中,采集/分配部件在从窗口突出的身体表面上形成一个驼峰。