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    Method of producing metal-doped silicon-based gel materials
    1.
    发明申请
    Method of producing metal-doped silicon-based gel materials 审中-公开
    制造金属掺杂硅基凝胶材料的方法

    公开(公告)号：US20070009416A1

    公开(公告)日：2007-01-11

    申请号：US11156512

    申请日：2005-06-20

    Applicant: Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

    Inventor： Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

    IPC: C01B33/12

    CPC classification number: B01J20/2803 ,  B01J20/02 ,  B01J20/103 ,  B01J20/3204 ,  B01J20/3236

    Abstract: The present invention relates generally to an environmental control unit for use in air handling systems that provides highly effective filtration of noxious gases (such as ammonia). Such a filtration system utilizes novel metal-doped silica-based gels to trap and remove such undesirable gases from an enclosed environment. Such gels exhibit specific porosity requirements and density measurements. Furthermore, in order for proper metal doping to take effect, such gels must be treated while in a wet state. The combination of these particular properties and metal dopant permits highly effective noxious gas filtration such that uptake and breakthrough results are attained, particularly in comparison with prior silica gel filtration products. Methods of using and specific filter apparatuses are also encompassed within this invention.

    Abstract translation: 本发明一般涉及一种用于空气处理系统的环境控制单元，其提供对有害气体（例如氨）的高效过滤。 这种过滤系统利用新颖的金属掺杂的二氧化硅基凝胶来从封闭的环境中捕集和去除这些不期望的气体。 这种凝胶表现出特定的孔隙率要求和密度测量。 此外，为了适当的金属掺杂生效，这种凝胶必须在潮湿状态下进行处理。 这些特定性质和金属掺杂剂的组合允许高效有害的气体过滤，从而获得吸收和突破性结果，特别是与现有硅胶过滤产物相比。 使用方法和特定的过滤装置也包括在本发明中。

    Filter integrity tester
    2.
    发明申请
    Filter integrity tester 失效

    公开(公告)号：US20060188994A1

    公开(公告)日：2006-08-24

    申请号：US11064462

    申请日：2005-02-23

    Applicant: Yuqing Ding ,  Mark Shrewsbury ,  David Friday

    Inventor： Yuqing Ding ,  Mark Shrewsbury ,  David Friday

    IPC: G01N33/00

    CPC classification number: B01D65/102

    Abstract: An apparatus and method for testing the integrity of a filter under humid conditions is provided. The apparatus includes an injection assembly which is located on a first side of the filter and a detection assembly which is spaced from the injection assembly and located on a second side of the filter. The injection assembly injects a mixture of an air stream and a hydrophilic test chemical vapor of a known concentration through the filter. The injection assembly includes a sealed vaporizer which generates the mixture of the air stream and the hydrophilic test chemical vapor. The vaporizer includes a contact bed having an inert packing media for vaporizing the hydrophilic test chemical. The detection assembly detects a concentration peak of the hydrophilic test chemical vapor exiting the filter. The detection assembly includes a chemical sampling member, a chemical enriching member and a chemical detector. At least one micro-controller communicates with the injection assembly and the detection assembly for controlling same.

    Four bed regenerable filter system
    3.
    发明申请
    Four bed regenerable filter system 有权
    四床可再生过滤系统

    公开(公告)号：US20050150377A1

    公开(公告)日：2005-07-14

    申请号：US10754837

    申请日：2004-01-12

    Applicant: David Friday ,  John Creed

    Inventor： David Friday ,  John Creed

    IPC: B01D15/18 ,  B01D53/04 ,  B01D53/047 ,  B01J20/34 ,  B01D53/02

    CPC classification number: B01D53/04 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/202 ,  B01D2259/40003 ,  B01D2259/40007 ,  B01D2259/40086 ,  B01D2259/402 ,  B01D2259/404 ,  B01D2259/41 ,  B01J20/08 ,  B01J20/103 ,  B01J20/20 ,  B01J20/26 ,  B01J20/3416 ,  B01J20/3425 ,  B01J20/3433 ,  B01J20/3483 ,  B01J2220/56

    Abstract: A regenerable filter system includes a flow path along which a stream of fluid flows between an inlet and an outlet. A first filtering unit is located in the flow path. The first filter unit includes first and second regenerable filter beds, wherein each bed has a first adsorbent for removing a first contaminant from the fluid stream. A first valve is located between the inlet and the first and second filter beds for selectively directing the fluid stream through one of the first and the second filter beds. The other of the first and second filter beds is removed from the flow path. A second filtering unit is located in the flow path between the first filtering unit and the outlet. The second filtering unit includes third and fourth regenerable filter beds for removing a second contaminant from the stream of fluid. A second valve is located between the first filtering unit and the third and fourth filter beds for selectively directing the stream of fluid through one of the third and fourth filter beds, wherein the other of the third and fourth filter beds is removed from the flow path. A controller operates the first valve such that the stream of fluid is directed through one of the first and second filter beds. The second valve is so operated that the stream of fluid is directed through one of the third and fourth filter beds. The first and second filter beds are cycled independent of one another.

    Abstract translation: 可再生过滤器系统包括流动路径，流体流在入口和出口之间流动。 第一过滤单元位于流动路径中。 第一过滤器单元包括第一和第二可再生过滤床，其中每个床具有用于从流体流中除去第一污染物的第一吸附剂。 第一阀位于入口与第一和第二过滤床之间，用于选择性地引导流体流通过第一和第二过滤床之一。 第一和第二过滤床中的另一个从流动路径移除。 第二过滤单元位于第一过滤单元和出口之间的流动路径中。 第二过滤单元包括用于从流体流中除去第二污染物的第三和第四可再生过滤床。 第二阀位于第一过滤单元和第三和第四过滤床之间，用于选择性地引导流体流通过第三和第四过滤床之一，其中第三和第四过滤床中的另一个从流动路径 。 控制器操作第一阀，使得流体流被引导通过第一和第二过滤床之一。 第二阀被操作以使得流体流被引导通过第三和第四过滤床之一。 第一和第二过滤床彼此独立地循环。

    Air filtration media comprising metal-doped silicon-based gel and zeolite materials
    5.
    发明申请
    Air filtration media comprising metal-doped silicon-based gel and zeolite materials 审中-公开
    空气过滤介质包括掺杂金属的硅基凝胶和沸石材料

    公开(公告)号：US20070221059A1

    公开(公告)日：2007-09-27

    申请号：US11385462

    申请日：2006-03-21

    Applicant: Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

    Inventor： Michael Withiam ,  Fitzgerald Sinclair ,  David Friday

    IPC: B01D53/02

    CPC classification number: B01D53/02 ,  B01D2253/106 ,  B01D2253/108 ,  Y02C20/10

    Abstract: An environmental control for use in air handling systems that provides highly effective filtration of noxious gases is provided. Such a filtration system utilizes a novel combination of at least one metal-doped silica-based gel and zeolite materials to trap and/or modify, and remove such undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment. The gel component exhibits specific porosity requirements and density measurements; the zeolite component is generally acidic and is preferably not reacted with any salts or like substances. The novel combination of such gels and zeolites permits highly effective noxious gas filtration such that excellent breakthrough results are attained, particularly in comparison with prior media filtration products. Methods of using and specific filter apparatuses are also encompassed within this invention.

    Abstract translation: 提供了一种用于空气处理系统的环境控制措施，可提供对有害气体的高效过滤。 这种过滤系统利用至少一种金属掺杂的二氧化硅基凝胶和沸石材料的新型组合来捕获和/或改性和除去这些不需要的气体（例如氨，环氧乙烷，甲醛和一氧化二氮）作为例子 ）从封闭的环境。 凝胶组分表现出特定的孔隙度要求和密度测量; 沸石组分通常是酸性的并且优选不与任何盐或类似物质反应。 这种凝胶和沸石的新颖组合允许高效有害的气体过滤，从而获得优异的突破性结果，特别是与现有的介质过滤产物相比。 使用方法和特定的过滤装置也包括在本发明中。

    MULTI-STAGE RESPIRATOR FILTER WITH TIM FILTER OPTION
    9.
    发明申请
    MULTI-STAGE RESPIRATOR FILTER WITH TIM FILTER OPTION 有权
    带过滤器选项的多阶段呼吸器过滤器

    公开(公告)号：US20070056589A1

    公开(公告)日：2007-03-15

    申请号：US10604497

    申请日：2003-07-25

    Applicant: Andrew Capon ,  David Friday ,  David Pike

    Inventor： Andrew Capon ,  David Friday ,  David Pike

    IPC: A62B23/02

    CPC classification number: A62B9/04 ,  A62B7/10 ,  A62B23/02

    Abstract: A filter canister assembly for a gas mask comprising a primary canister with a first filter medium adapted to remove aerosols, particulate materials and droplets from air and a second filter medium comprising an adsorbent filter medium adapted to remove toxic gases and arranged in serial communication with the first filter medium in the first canister. A supplementary filter canister has a third filter media adapted to intercept toxic industrial materials and is removably mounted to a first end of the first housing to supplement the ability of the primary filter canister to filter toxic industrial gases.

    Abstract translation: 一种用于防毒面具的过滤罐组件，其包括具有适于从空气中去除气溶胶，颗粒材料和液滴的第一过滤介质的初级罐，以及包括适于除去有毒气体并且与 第一罐中的第一过滤介质。 补充过滤罐具有适于拦截有毒工业材料的第三过滤介质，并且可移除地安装到第一壳体的第一端，以补充初级过滤器罐过滤有毒工业气体的能力。

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