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    PORTABLE INDUSTRIAL AIR FILTRATION DEVICE
    9.
    发明申请
    PORTABLE INDUSTRIAL AIR FILTRATION DEVICE 有权
    便携式工业空气过滤装置

    公开(公告)号：US20140260996A1

    公开(公告)日：2014-09-18

    申请号：US14200879

    申请日：2014-03-07

    申请人： Illinois Tool Works Inc.

    发明人： Keith A. Grider ,  Derek J. Leatzow ,  Stephen J. McPhilliamy ,  Antonio J. Belton ,  John S. White, JR. ,  Daniel J. Greene ,  Ryan L. Francis ,  Sean J. Corrigan ,  Charles Steven Pint ,  Frank E. Garrett, JR.

    IPC分类号： B01D46/44 ,  B01D46/00

    CPC分类号： B01D46/0004 ,  B01D46/0024 ,  B01D46/0041 ,  B01D46/0086 ,  B01D46/30 ,  B01D46/44 ,  B01D46/444 ,  B01D46/446 ,  B01D46/46 ,  B01D2273/30

    摘要： Various embodiments of the present disclosure provide a portable industrial air filtration device employing an annular dual filter assembly to capture and remove impurities from the air surrounding the air filtration device, enabling the air filtration device to quickly and efficiently improve the quality and safety of the air. The air filtration device includes a two-piece housing including a lower housing component and a locking cover removably attachable to the lower housing component. The dual filter assembly is mounted within the housing between the locking cover and the lower housing component, and includes a removable self-supporting outer pre-filter surrounding a separately removable inner HEPA filter. The pre-filter initially filters the surrounding air by capturing relatively large or coarse impurities, and the HEPA filter further filters the air pulled through the pre-filter by capturing relatively small or fine impurities.

    摘要翻译： 本公开的各种实施例提供了一种便携式工业空气过滤装置，其使用环形双过滤器组件来捕获和去除空气过滤装置周围的空气中的杂质，使空气过滤装置能够快速有效地改善空气的质量和安全性 。 空气过滤装置包括两件式壳体，其包括下壳体部件和可拆卸地附接到下壳体部件的锁定盖。 双过滤器组件安装在壳体内的锁定盖和下部壳体部件之间，并且包括围绕单独可移除的内部HEPA过滤器的可拆卸的自支撑外部预过滤器。 预过滤器首先通过捕获相对较大或粗大的杂质来过滤周围的空气，并且HEPA过滤器通过捕获相对较小或细小的杂质来进一步过滤通过预过滤器拉出的空气。