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    Apparatus, system, and method for enhancing air purification efficiency
    2.
    发明授权
    Apparatus, system, and method for enhancing air purification efficiency 有权
    提高空气净化效率的装置，系统和方法

    公开(公告)号：US07806952B2

    公开(公告)日：2010-10-05

    申请号：US12184623

    申请日：2008-08-01

    申请人： Andrew R. Fox ,  Marvin E. Jones ,  Larry J. Carson

    发明人： Andrew R. Fox ,  Marvin E. Jones ,  Larry J. Carson

    IPC分类号： B03C3/70

    CPC分类号： A61L9/22 ,  A61L2202/11 ,  B03C3/38

    摘要： Disclosed are apparatus, system, and method for enhancing air purification efficiency regarding a gaseous medium passing through an opening. Included is a high voltage source that creates an effective voltage field across the opening; and at least one charge bleeding element constructed and arranged to maintain an effective voltage field across the opening.

    摘要翻译： 公开了用于提高通过开口的气态介质的空气净化效率的装置，系统和方法。 包括一个高压源，可在整个开口处产生有效的电压场; 以及构造和布置成保持穿过开口的有效电压场的至少一个电荷释放元件。

    Flat-Fold Respirator With Monocomponent Filtration/Stiffening Monolayer
    4.
    发明申请
    Flat-Fold Respirator With Monocomponent Filtration/Stiffening Monolayer 审中-公开
    单组份过滤/加强单层扁平呼吸器

    公开(公告)号：US20110266718A1

    公开(公告)日：2011-11-03

    申请号：US13180899

    申请日：2011-07-12

    申请人： Seyed A. Angadjivand ,  James E. Springett ,  John M. Brandner ,  Marvin E. Jones ,  Andrew R. Fox ,  Michael R. Berrigan ,  John D. Stelter

    发明人： Seyed A. Angadjivand ,  James E. Springett ,  John M. Brandner ,  Marvin E. Jones ,  Andrew R. Fox ,  Michael R. Berrigan ,  John D. Stelter

    IPC分类号： B29C67/20

    CPC分类号： A41D13/113 ,  A62B23/025 ,  D04H3/14 ,  D04H3/16

    摘要： A flat-fold respirator is made from a stiff filtration panel joined to the remainder of the respirator through at least one line of demarcation. The panel contains a porous monocomponent monolayer nonwoven web that contains charged intermingled continuous monocomponent polymeric fibers of the same polymeric composition and that has sufficient basis weight or inter-fiber bonding so that the web exhibits a Gurley Stiffness greater than 200 mg and the respirator exhibits less than 20 mm H2O pressure drop. The respirator may be formed without requiring additional stiffening layers, bicomponent fibers, or other reinforcement and can be flat-folded for storage. Scrap from the manufacturing process may be recycled to make additional stiff filtration panel web.

    摘要翻译： 平折式呼吸器由刚性过滤面板制成，该过滤面板通过至少一条分界线连接至其余的呼吸器。 面板包含多孔单组分单层非织造纤维网，其包含相同聚合物组合物的带负载混合的连续单组分聚合物纤维，并且具有足够的基重或纤维间粘合，使得幅材表现出大于200mg的Gurley刚度，并且呼吸器显示较少 超过20毫米H2O压降。 可以形成呼吸器，而不需要额外的加强层，双组分纤维或其它增强材料，并且可以平坦折叠以用于储存。 制造过程中的废料可以被再循环以制造额外的刚性过滤板网。

    FLAT-FOLD RESPIRATOR WITH MONOCOMPONENT FILTRATION/STIFFENING MONOLAYER
    7.
    发明申请
    FLAT-FOLD RESPIRATOR WITH MONOCOMPONENT FILTRATION/STIFFENING MONOLAYER 有权
    带单声道过滤/加强单层的平压式呼吸器

    公开(公告)号：US20080011303A1

    公开(公告)日：2008-01-17

    申请号：US11693186

    申请日：2007-03-29

    申请人： Seyed A. Angadjivand ,  James E. Springett ,  John M. Brandner ,  Marvin E. Jones ,  Andrew R. Fox ,  Michael R. Berrigan ,  John D. Stelter

    发明人： Seyed A. Angadjivand ,  James E. Springett ,  John M. Brandner ,  Marvin E. Jones ,  Andrew R. Fox ,  Michael R. Berrigan ,  John D. Stelter

    IPC分类号： A62B7/00

    CPC分类号： A41D13/113 ,  A62B23/025 ,  D04H3/14 ,  D04H3/16

    摘要： A flat-fold respirator is made from a stiff filtration panel joined to the remainder of the respirator through at least one line of demarcation. The panel contains a porous monocomponent monolayer nonwoven web that contains charged intermingled continuous monocomponent polymeric fibers of the same polymeric composition and that has sufficient basis weight or inter-fiber bonding so that the web exhibits a Gurley Stiffness greater than 200 mg and the respirator exhibits less than 20 mm H2O pressure drop. The respirator may be formed without requiring additional stiffening layers, bicomponent fibers, or other reinforcement and can be flat-folded for storage. Scrap from the manufacturing process may be recycled to make additional stiff filtration panel web.

    摘要翻译： 平折式呼吸器由刚性过滤面板制成，该过滤面板通过至少一条分界线连接至其余的呼吸器。 面板包含多孔单组分单层非织造纤维网，其包含相同聚合物组合物的带负载混合的连续单组分聚合物纤维，并且具有足够的基重或纤维间粘合，使得幅材表现出大于200mg的Gurley刚度，并且呼吸器显示较少 超过20毫米H 2 O 2压降。 可以形成呼吸器，而不需要额外的加强层，双组分纤维或其它增强材料，并且可以平坦折叠以用于储存。 制造过程中的废料可以被再循环以制造额外的刚性过滤板网。

    Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs
    8.
    发明授权
    Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs 有权

    公开(公告)号：US09139940B2

    公开(公告)日：2015-09-22

    申请号：US11461201

    申请日：2006-07-31

    申请人： Michael R. Berrigan ,  John D. Stelter ,  Pamela A. Percha ,  Andrew R. Fox ,  William T. Fay

    发明人： Michael R. Berrigan ,  John D. Stelter ,  Pamela A. Percha ,  Andrew R. Fox ,  William T. Fay

    IPC分类号： D04H3/14 ,  D04H3/16 ,  D04H3/00

    CPC分类号： D04H3/16 ,  D04H3/00 ,  Y10T428/2481 ,  Y10T428/249953 ,  Y10T428/2913 ,  Y10T428/2969 ,  Y10T442/3325 ,  Y10T442/60 ,  Y10T442/614 ,  Y10T442/619 ,  Y10T442/626 ,  Y10T442/641 ,  Y10T442/68 ,  Y10T442/69

    摘要： A method for making a bonded nonwoven fibrous web comprising 1) providing a nonwoven fibrous web that comprises oriented semicrystalline polymeric fibers, and 2) subjecting the web to a controlled heating and quenching operation that includes a) forcefully passing through the web a fluid heated to at least the onset melting temperature of said polymeric material for a time too short to wholly melt the fibers, and b) immediately quenching the web by forcefully passing through the web a fluid at a temperature at least 50° C. less than the Nominal Melting Point of the material of the fibers. The fibers of the treated web generally have i) an amorphous-characterized phase that exhibits repeatable softening (making the fibers softenable) and ii) a crystallite-characterized phase that reinforces the fiber structure during softening of the amorphous-characterized phase, whereby the fibers may be autogenously bonded while retaining orientation and fiber structure. Apparatus for carrying out the method can comprise 1) a conveyor for conveying a web to be treated, 2) a heater mounted adjacent a first side of the conveyor and comprising a) a chamber having a wall that faces the web, b) one or more conduits through which a heated gas can be introduced into the chamber under pressure and c) a slot in said chamber wall through which heated gas flows from the chamber onto a web on the conveyor, 3) a source of quenching gas downweb from the heater on the first side of the conveyor, the quenching gas having a temperature substantially less than that of the heated gas, 4) gas-withdrawal mean disposed on the second side of the conveyor opposite from the heater, the gas-withdrawal means having a portion in alignment with the slot so as to draw heated gas from the slot through the web and also a portion downweb from the slot in alignment with the source of quenching gas so as to draw the quenching gas through the web to quench the web. Flow restrictor means is preferably disposed on the second side of the conveyor in the path of at least one of the heated gas and the quenching gas so as to even the distribution of the gas through the web.

    SORBENT LOADED WEBS FOR GRAVITY FILTRATION
    10.
    发明申请
    SORBENT LOADED WEBS FOR GRAVITY FILTRATION 审中-公开
    SORBENT负载重量过滤器WEBS FOR GRAVITY FILTRATION

    公开(公告)号：US20120193282A1

    公开(公告)日：2012-08-02

    申请号：US13263389

    申请日：2010-04-07

    申请人： Scot G. Wolf ,  William J. Feil, III ,  Bradley W. Eaton ,  Stephen Sanocki ,  Andrew R. Fox

    发明人： Scot G. Wolf ,  William J. Feil, III ,  Bradley W. Eaton ,  Stephen Sanocki ,  Andrew R. Fox

    IPC分类号： B01D29/05 ,  B01D39/16 ,  B01D27/04

    CPC分类号： B01D39/1623 ,  B01J20/28028

    摘要： A filter media is disclosed comprising a carrier and a web collected on the carrier. The web comprises hydrophilic polymeric meltblown fibers and a plurality of sorbent particles enmeshed in the hydrophilic polymeric meltblown fibers. The carrier comprises a porous sheet and has a carrier basis weight. The web has a web basis weight. The hydrophilic polymeric melt-blown fibers comprise at least 3% of the web basis weight and the plurality of sorbent particles comprise at most 97% of the web basis weight.

    摘要翻译： 公开了一种过滤介质，其包括载体和收集在载体上的网。 网状物包括亲水聚合物熔喷纤维和包含在亲水聚合物熔喷纤维中的多个吸附剂颗粒。 载体包括多孔片材并具有载体基重。 纸幅具有纸张基重。 亲水性聚合物熔喷纤维包含至少3％的纤维网基重，并且多个吸附剂颗粒占网片基重的至多97％。