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    • 1. 发明授权
    • Visual indicating device for bad breath
    • 视觉指示装置用于口臭
    • US08702618B2
    • 2014-04-22
    • US13549550
    • 2012-07-16
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • A61B5/08
    • G01N33/497B41M5/30G01N31/223G01N33/52G01N33/54346
    • The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4′-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.
    • 本发明提供了一种呼吸测试装置,其包括在存在与口臭相关的气味(例如硫和氨气味)的情况下改变颜色的视觉指示剂。 视觉显示剂的一个实例是4,4'-双(二甲基氨基) - 二苯甲醇(Michler's hydrol或BDMB)和具有相似化学结构的相关染料。 将指示剂施加到基材上,然后将其插入管或吸管中,或覆盖吸管的一端。 当口臭的用户吹入管或吸管时,指示剂会改变颜色。 呼吸测试装置为用户提供了一种快速且经济实惠的手段来测试他们的呼吸,并且它们可以被包装在谨慎的袖珍尺寸的分配器中,该分配器可以携带在口袋或钱包中。
    • 2. 发明授权
    • Visual indicating device for bad breath
    • 视觉指示装置用于口臭
    • US08221328B2
    • 2012-07-17
    • US12134547
    • 2008-06-06
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • John Gavin MacDonaldKevin P. McGrathRameshBabu Boga
    • A61B5/08
    • G01N33/497B41M5/30G01N31/223G01N33/52G01N33/54346
    • The invention provides a breath testing device which includes a visual indicating agent which changes color in the presence of an odor associated with bad breath, such as sulfur and ammonia odors. An example of the visual indicating agent is 4,4′-bis(dimethylamino)-benzhydrol (Michler's hydrol or BDMB) and related dyes having a similar chemical structure. The indicating agent is applied to a substrate which is then inserted into a tube or straw, or which covers one end of a straw. When a user with bad breath blows into the tube or straw, the indicating agent will change color. The breath testing devices provide a quick and affordable means for a user to test their breath, and they may be packaged in discreet, pocket-sized dispensers which can be carried in a pocket or purse.
    • 本发明提供了一种呼吸测试装置,其包括在存在与口臭相关的气味(例如硫和氨气味)的情况下改变颜色的视觉指示剂。 视觉显示剂的一个实例是4,4'-双(二甲基氨基) - 二苯甲醇(Michler's hydrol或BDMB)和具有相似化学结构的相关染料。 将指示剂施加到基材上,然后将其插入管或吸管中,或覆盖吸管的一端。 当口臭的用户吹入管或吸管时,指示剂会改变颜色。 呼吸测试装置为用户提供了一种快速且经济实惠的手段来测试他们的呼吸,并且它们可以被包装在谨慎的袖珍尺寸的分配器中,该分配器可以携带在口袋或钱包中。
    • 6. 发明授权
    • Integrated filter combining physical adsorption and electrokinetic adsorption
    • 综合过滤器结合物理吸附和电动吸附
    • US06274041B1
    • 2001-08-14
    • US09461088
    • 1999-12-14
    • Bruce S. WilliamsonKevin P. McGrath
    • Bruce S. WilliamsonKevin P. McGrath
    • B01D3602
    • B01D53/0431B01D2253/102B01D2253/104B01D2253/106B01D2253/108B01D2253/1128B01D2253/202B01D2253/25B01D2253/34B01D2257/2064B01D2257/60B01D2257/90B01D2257/91B01D2259/4146
    • An integrated filter for removing impurities from a fluid stream. The filter includes a first element adapted to remove at least some of the impurities by physical adsorption, and a second element adapted to remove at least some of the impurities by electrokinetic adsorption. Either or both of the first element and the second element further may be adapted to remove at least some of the impurities by sieving. The first element generally may be composed of loose particles or granules, or the first element may be composed of a porous block of an adsorbent, wherein the block is permeable to fluids and has interconnected pores therethrough. The second element generally is composed of a porous, charge-modified fibrous web which includes fibers prepared from a thermoplastic polymer. For example, the thermoplastic polymer may be a polyolefin. As another example, the porous, charge-modified fibrous web may be a nonwoven web, such as a meltblown or microfiber glass web. Alternatively, both the first and second elements may be in the form of a sheet.
    • 用于从流体流中去除杂质的集成过滤器。 过滤器包括适于通过物理吸附除去至少一些杂质的第一元件,以及适于通过电动吸附除去至少一些杂质的第二元件。 第一元件和第二元件中的任一个或两者还可以适于通过筛分去除至少一些杂质。 第一元件通常可以由松散的颗粒或颗粒组成,或者第一元件可以由吸附剂的多孔块组成,其中该块可流体流动并且具有穿过其中的相互连通的孔。 第二元素通常由多孔的电荷改性纤维网构成,其包括由热塑性聚合物制备的纤维。 例如,热塑性聚合物可以是聚烯烃。 作为另一个实例,多孔的电荷改性纤维网可以是非织造纤维网,例如熔喷或微纤维玻璃纤维网。 或者,第一和第二元件都可以是片材的形式。