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公开(公告)号:US06533839B2
公开(公告)日:2003-03-18
申请号:US09925563
申请日:2001-08-09
IPC分类号: B01D5304
CPC分类号: B01D53/02 , B01D2201/52 , B01D2253/102 , B01J20/20
摘要: There is provided a three-dimensional adsorbent particle filter having a width, depth and at least one exposed outer face. The filter comprises darkly colored adsorbent particles having an L-value of 60 or less, preferably 20 or less providing a dark contrasting background. Reflective particles are present at the outer face of the filter at levels that allow a user to visually differentiate the filter based on the contrast between the reflective particles and the dark adsorbent particles. Different reflective particle or combinations of reflective particles are used with different filters to differentiate the filters each from the other.
摘要翻译: 提供了具有宽度,深度和至少一个暴露的外表面的三维吸附剂颗粒过滤器。 过滤器包括L值为60以下,优选为20以下的深色吸附剂颗粒,提供暗的对比背景。 反射粒子存在于过滤器的外表面,其水平允许使用者基于反射颗粒和暗吸附剂颗粒之间的对比度目视地区分过滤器。 不同的反射颗粒或反射颗粒的组合与不同的过滤器一起使用以将过滤器与另一个分离。