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    • 9. 发明授权
    • Air treatment devices with use-up indicators
    • 空气处理装置具有用尽指标
    • US07670566B2
    • 2010-03-02
    • US11346697
    • 2006-02-03
    • Joel E. AdairBrian T. DavisGopal P. AnanthThomas J. Szymczak
    • Joel E. AdairBrian T. DavisGopal P. AnanthThomas J. Szymczak
    • A61L9/01A61L9/02A61L9/03
    • A01M1/2077A61L9/03G01N31/229Y10S514/957
    • Disclosed are devices for dispensing air treatment chemicals. There is a substrate bearing a first volatile air treatment chemical that is capable of being dispensed from the substrate when the substrate is heated, and an indicator unit holding a volatile indicator chemical separate from the first volatile air treatment chemical such that the volatile indicator chemical is capable of being dispensed from the unit when the unit is heated. The extent of dispensing of the first volatile air treatment chemical can be indicated by a visible cue whose appearance results from the dispensing of the volatile indicator chemical. In one form the unit also holds a second air treatment chemical. In another the indicator unit is a replaceable cartridge positionable more remote from the heater than the substrate.
    • 公开了用于分配空气处理化学品的装置。 存在具有第一挥发性空气处理化学品的基材,其能够在加热基材时从基材分配,以及将挥发性指示剂化学品与第一挥发性空气处理化学品分离的指示剂单元,使得挥发性指示剂化学品为 能够在单元被加热时从单元分配。 第一种挥发性空气处理化学品的分配程度可以通过可见的提示来表示,其可见线索的外观是由挥发性指示剂化学品的分配引起的。 在一种形式中,该装置还具有第二种空气处理化学品。 在另一个中,指示器单元是可替换的盒,其位置比基板更加远离加热器。