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147 条记录 (耗时 0.03 秒)

    Low profile frame for a filter incorporating a negative pressure check mechanism
    4.
    发明授权
    Low profile frame for a filter incorporating a negative pressure check mechanism 有权
    用于包含负压检查机构的过滤器的低轮廓框架

    公开(公告)号：US09095800B2

    公开(公告)日：2015-08-04

    申请号：US13944944

    申请日：2013-07-18

    申请人： Scott Technologies, Inc.

    发明人： Daniel Charles Symons

    IPC分类号： B01D46/00 ,  A62B23/00 ,  A62B23/02 ,  B01D46/02 ,  A62B18/08 ,  A62B27/00 ,  B01D46/10

    CPC分类号： B01D46/0005 ,  A62B18/08 ,  A62B23/00 ,  A62B23/02 ,  A62B27/00 ,  B01D46/02 ,  B01D46/10 ,  B01D2271/02

    摘要： A low-profile filter frame is disclosed for maintaining an open filter plenum configuration during normal operation, and for enabling quick and reliable negative pressure testing. The frame has upper and lower halves. A breathing tube in the lower half connects to a respirator port. The upper and lower halves snap together to maintain the structure in an assembled configuration. The halves also include features that bias the halves apart when the device is in the assembled configuration, thereby maintaining the breathing tube open. To perform a fit test, a force is applied to an outer surface of the upper half, which moves the halves together, in opposition to the bias, so that the upper half seals against the breathing tube. The frame can be provide in as a single-piece, with a living hinge connecting upper and lower halves, or the upper and lower halves can be separate pieces.

    摘要翻译： 公开了一种低调的过滤器框架，用于在正常操作期间维持打开的过滤器充气室配置，并且用于实现快速可靠的负压测试。 框架有上下半部分。 下半部分的呼吸管连接到呼吸器端口。 上半部和下半部分卡在一起以将结构保持在组装构型中。 一半还包括当装置处于组装构型时将两半分开偏置的特征，从而保持呼吸管打开。 为了执行配合测试，将力施加到上半部分的外表面上，该外表面使偏移一半移动到一起，使得上半部密封抵靠呼吸管。 框架可以以单件形式提供，具有连接上半部和下半部的活动铰链，或者上半部和下半部可以是分开的部件。

    Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors in industrial applications
    10.
    发明授权
    Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors in industrial applications 失效
    无铬浸渍的活性通用呼吸器碳，用于在工业应用中吸附有毒气体和/或蒸气

    公开(公告)号：US5492882A

    公开(公告)日：1996-02-20

    申请号：US97423

    申请日：1993-07-26

    申请人： David T. Doughty ,  William J. Knebel ,  John W. Cobes, III

    发明人： David T. Doughty ,  William J. Knebel ,  John W. Cobes, III

    IPC分类号： A62B23/00 ,  B01D53/02 ,  B01D53/04 ,  B01J20/20 ,  C01B17/16 ,  C01C1/12

    CPC分类号： B01J20/20 ,  A62B23/00 ,  B01D53/02

    摘要： An activated carbon adsorbent for removing nosioux gases and vapors from a contaminated air stream, and method of making same. The activated carbon has impregnated therein at least one compound selected from each of three groups of compounds. The three groups of compounds comprise sulfuric acid and sulfuric acid salts; molybdenum compounds, and copper compounds and zinc compounds. The amount of at least one sulfuric acid or salt thereof compound present is up to 10% by sulfate, by weight, the one molybdenum compounds is present in amounts up to 10% by weight, as molybdenum, and the total amount of copper or zinc compounds present is a total amount not greater than 20% by weight as total copper and zinc. The disclose adsorbents are desirably used in universal filters.

    摘要翻译： 一种活性炭吸附剂，用于从受污染的空气流中除去污物气体和蒸气，以及制造方法。 活性炭在其中浸渍了选自三组化合物中的至少一种化合物。 三组化合物包括硫酸和硫酸盐; 钼化合物，铜化合物和锌化合物。 存在的至少一种硫酸或其盐的化合物的量通过硫酸盐（以重量计）高达10％，一种钼化合物以钼为最多10重量％，并且铜或锌的总量 存在的化合物的总量不大于总铜和锌的20重量％。 所公开的吸附剂理想地用于通用过滤器中。