FILTER CHANGE INDICATOR
    9.
    发明申请
    FILTER CHANGE INDICATOR 有权
    滤波器变化指示器

    公开(公告)号:US20070272081A1

    公开(公告)日:2007-11-29

    申请号:US11420655

    申请日:2006-05-26

    IPC分类号: B01D46/00

    摘要: An air filter monitoring system for indicating when to clean or replace a flexible air filter includes an air filter having a peripheral frame and an interior filtering region, a fixed support structure for receiving the air filter and maintaining the perimeter of the filter frame in a generally fixed position while allowing the interior filtering region to flex in response to air flow through the filter, and a filter change indicator having a predetermined bias force. The filter change indicator is arranged to contact the interior filtering region of the filter, wherein when the predetermined bias force is reached, the filter change indicator is activated to notify a user to clean or replace the filter.

    摘要翻译: 用于指示何时清洁或更换柔性空气过滤器的空气过滤器监控系统包括具有外围框架和内部过滤区域的空气过滤器,用于接收空气过滤器的固定支撑结构,并且将过滤器框架的周边保持在一般 固定位置,同时允许内部过滤区域响应于通过过滤器的气流而弯曲,以及具有预定偏置力的过滤器改变指示器。 过滤器更换指示器布置成接触过滤器的内部过滤区域,其中当达到预定的偏压力时,过滤器更换指示器被激活以通知用户清洁或更换过滤器。