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    • 89. 发明申请
    • RESPIRATOR CARTRIDGE WITH SERVICE LIFE INDICATOR
    • 呼吸器与服务生命指示器
    • WO02022237A1
    • 2002-03-21
    • PCT/US2001/028836
    • 2001-09-12
    • A62B18/08A62B23/02B01D53/04B01D53/06
    • B01D53/0454A62B18/088B01D53/0415B01D53/06B01D2253/102B01D2257/2045B01D2257/2047B01D2259/4541Y10S55/33Y10S55/34Y10S55/35
    • A rotationally adjustable respirator cartridge (10) having a self-contained end of service life indicator (50) adjacent the interior of a sidewall (14) of the cartridge shell (12) and in contact with the filter medium )32) provides a color-changing display field (54) that is visible to the wearer of the respirator through a transparent portion (15)of sidewall (14). Display window (66) is defined by opaque border area (64) that surrounds sensor display field (54) and obscures a predetermined portion of the downstream end of the indicator (50) to provide a desired margin of safety to the wearer. In order to permit the wearer to rotationally position the color-changing display field (54) in the line of sight through the transparent portion (15) of the respirator facepiece, cartridge (10) is provided with a rotatable mounting assembly that is continuously rotatable in one direction and that forms a seal with the cartridge shell (12).
    • 旋转可调节的呼吸器筒(10)具有与所述药筒外壳(12)的侧壁(14)的内部相邻并与所述过滤介质接触的独立的使用寿命指示器(50)端32) 通过侧壁(14)的透明部分(15)对呼吸器的佩戴者可见的改变显示区域(54)。 显示窗口(66)由围绕传感器显示区域(54)的不透明边界区域(64)限定,并遮蔽了指示器(50)的下游端的预定部分,以向佩戴者提供期望的安全边界。 为了允许佩戴者将变色显示区域(54)旋转地定位在通过呼吸器面罩的透明部分(15)的视线内,盒(10)设置有可旋转的安装组件,其可连续旋转 并且与盒壳体(12)形成密封。
    • 90. 发明申请
    • MULTISTAGE SYSTEM FOR SEPARATING GAS BY ADSORPTION
    • 通过吸附分离气体的多级系统
    • WO00076631A1
    • 2000-12-21
    • PCT/CA2000/000696
    • 2000-06-12
    • B01D53/04B01D53/047B01D53/06
    • B01D53/0431B01D53/0438B01D53/047B01D53/0476B01D53/06B01D53/261B01D2253/104B01D2253/1085B01D2253/11B01D2253/25B01D2256/12B01D2257/108B01D2257/80B01D2259/40005B01D2259/4009B01D2259/4068
    • A pressure swing adsorption system (300') for separating components of a gas mixture module (301') and a second adsorbent module (302') coupled to the first adsorbent module includes a first gas inlet for receiving the gas mixture, at least one bed of first adsorbent material in communication with the first gas inlet for adsorbing a gas mixture component from the gas mixture, and a first gas outlet in communication with the first adsorbent beds for receiving a first product gas therefrom. The second adsorbent module includes a second gas inlet coupled to the first gas outlet for receiving the first product gas, at least one second bed of adsorbent material in communication with the second gas inlet for adsorbing a first product gas component from the first product gas, and a second gas outlet in communication with the second adsorbent beds for receiving a second product gas therefrom. The first product gas substantially excludes the adsorbed gas mixture component, and the second product gas substantially excludes the adsorbed first product gas component. Also, the adsorbent modules are configured for transferring the first product gas between the adsorbent modules over a plurality of discrete pressure levels to maintain substantial uniformity of gas flow therebetween.
    • 用于分离气体混合物组件(301')的组分和耦合到第一吸附剂组件的第二吸附剂组件(302')的变压吸附系统(300')包括用于接收气体混合物的第一气体入口,至少一个 与第一气体入口连通以吸收来自气体混合物的气体混合物组分的第一吸附剂材料床,以及与第一吸附剂床连通以从其接收第一产物气体的第一气体出口。 第二吸附剂模块包括与第一气体出口连接的第二气体入口,用于接收第一产物气体,与第二气体入口连通的至少一个第二吸附材料床,用于从第一产物气体吸附第一产物气体组分, 以及与第二吸附剂床连通的用于从其接收第二产物气体的第二气体出口。 第一产物气体基本上排除了吸附的气体混合物组分,第二产物气体基本上排除了吸附的第一产物气体组分。 此外,吸附剂模块被配置为在多个离散的压力水平之间将吸附剂模块之间的第一产物气体转移以保持其间的气流的实质均匀性。