Electrolytic moisture indicator inside chemical cartridges
    91.
    发明授权
    Electrolytic moisture indicator inside chemical cartridges 失效
    化学药筒中的电解水分指示剂

    公开(公告)号:US4313743A

    公开(公告)日:1982-02-02

    申请号:US132854

    申请日:1980-03-24

    IPC分类号: B01D53/02 G01N27/12 B01D53/04

    摘要: An electrolytic device adapted for mounting on the interior wall of a container housing sorbent chemicals for detection and display of moisture content. A sandwich or tab-type probe includes superhydroscopic MgClO.sub.4 or CaSO.sub.4 particles which resist electrical current flow when dry and have a higher affinity for moisture than the sorbent chemicals in cartridges or filters. Moisture intrusion is drawn to the anhydrous MgClO.sub.4 or CaSO.sub.4 particles changing their ohmic resistance and thereby enabling visual and nondestructive detection of the moisture intrusion into the container or cartridge. The probe is spaced away from the sorbent chemicals avoiding the transfer of mechanical stresses and any additional pressure drop through the sorbents, thereby permitting the device to be used in combination with a wide range of sealed containers and air filters.

    摘要翻译: 一种电解装置,适于安装在容纳用于检测和显示含水量的吸附剂化学品的容器的内壁上。 三明治或片状探针包括超级MgClO4或CaSO 4颗粒,当干燥时阻止电流流动,并且具有比吸收剂在胶囊或过滤器中的化学物质更高的吸湿性。 水分侵入被吸引到无水MgClO 4或CaSO 4颗粒上,改变其欧姆电阻,从而使水分进入容器或盒中的视觉和非破坏性检测。 探针与吸附剂化学物质隔开,避免机械应力的传递和任何额外的压降通过吸附剂,从而允许该装置与广泛的密封容器和空气过滤器结合使用。

    Sterile oxygen system and replaceable filter therefore
    92.
    发明授权
    Sterile oxygen system and replaceable filter therefore 失效
    因此,无菌氧气系统和可更换过滤器

    公开(公告)号:US4128407A

    公开(公告)日:1978-12-05

    申请号:US627931

    申请日:1975-11-03

    申请人: James F. Chapel

    发明人: James F. Chapel

    IPC分类号: A61M16/10 B01D46/10 B01D53/00

    摘要: A system and filter apparatus therefore are described for providing substantially bacteria-free, humidified oxygen to a breathing mask or breathing tube. The filter apparatus is hydrophobic and is inserted either at or adjacent the outlet of a humidifier, in the flow line between the outlet of the humidifier and the breathing mask, or at or adjacent the breathing mask, and can be easily replaced when contaminated after a period of use.

    摘要翻译: 因此,描述了一种用于向呼吸面罩或呼吸管提供基本上无细菌的加湿氧气的系统和过滤装置。 过滤装置是疏水性的,并且插入在加湿器的出口处或邻近加湿器的出口处,位于加湿器的出口与呼吸面罩之间的流动管线中,或者在呼吸面罩的附近或邻近呼吸面罩处,并且可以容易地在被 使用期限

    Colorimetric vinyl chloride indicator
    93.
    发明授权
    Colorimetric vinyl chloride indicator 失效
    比色氯乙烯指示剂

    公开(公告)号:US3966440A

    公开(公告)日:1976-06-29

    申请号:US583421

    申请日:1975-06-03

    IPC分类号: B01D53/02 B01D46/30

    摘要: A colorimetric indicator for use in indicating the impending exhaustion of a vinyl organo filtering device. The colorimetric indicator material consists of activated alumina impregnated with between 0.5 to 5.0% by weight potassium permanganate and is positioned immediately behind a window in a canister or cartridge used in filtering vinyl organo materials.

    摘要翻译: 用于指示乙烯基有机过滤装置即将耗尽的比色指示剂。 比色指示剂材料由浸渍有0.5-5.0重量%高锰酸钾的活性氧化铝组成,并且紧邻位于用于过滤乙烯基有机材料的罐或筒中的窗口后面。