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    Flat-Fold Respirator With Monocomponent Filtration/Stiffening Monolayer
    5.
    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

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

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

    IPC: B29C67/20

    CPC classification number: A41D13/113 ,  A62B23/025 ,  D04H3/14 ,  D04H3/16

    Abstract: 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.

    Abstract translation: 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。

    MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR
    6.
    发明申请
    MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR 有权
    模制单声道单声道呼吸器

    公开(公告)号：US20110132374A1

    公开(公告)日：2011-06-09

    申请号：US13019500

    申请日：2011-02-02

    Applicant: John D. Stelter ,  Andrew R. Fox ,  Seyed A. Angadjivand

    Inventor： John D. Stelter ,  Andrew R. Fox ,  Seyed A. Angadjivand

    IPC: A62B7/10

    CPC classification number: D04H3/16 ,  A41D13/1146 ,  D04H3/14 ,  Y10T428/1362 ,  Y10T428/249921

    Abstract: A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.

    Abstract translation: 模制的呼吸器由相同聚合物组合物的连续带电单组分熔融部分结晶和部分无定形纤维的单组分单层非织造纤维网制成，所述纤维已经被结合以形成相干和可处理的纤维网，其进一步可以在保持定向和纤维结构的同时被软化 。 呼吸器是一种杯状多孔单组分单层基质，其基质纤维在纤维交叉点的至少一些点处彼此结合。 该矩阵的刚度大于1N。可以形成呼吸器，而不需要过滤介质层中的加强层，双组分纤维或其他增强材料。

    Pleated filter with bimodal monolayer monocomponent media
    8.
    发明授权
    Pleated filter with bimodal monolayer monocomponent media 有权
    带双峰单层单组分的褶皱过滤器

    公开(公告)号：US07754041B2

    公开(公告)日：2010-07-13

    申请号：US11461307

    申请日：2006-07-31

    Applicant: Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    Inventor： Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    IPC: D04H3/14 ,  B29C53/04 ,  B01D39/16 ,  B01D46/52

    CPC classification number: B01D46/521 ,  B01D39/163 ,  B01D2239/064 ,  D04H3/14 ,  D04H3/16 ,  Y10T156/1015 ,  Y10T156/108 ,  Y10T442/68

    Abstract: A pleated filter is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled larger size and smaller size continuous monocomponent polymeric fibers of the same polymeric composition. Rows of pleats are formed in the nonwoven web, and the pleated web is cut to a desired size and shape to provide a filter element containing a self-supporting porous monocomponent monolayer matrix of fibers bonded to one another at at least some points of fiber intersection and having an average initial submicron efficiency of at least 15% at a 1.52 meters/sec face velocity. The filter element is deformation resistant without requiring stiffening layers, bicomponent fibers or other reinforcing measures in the filter media layer.

    Abstract translation: 褶皱过滤器由单组分单层非织造纤维网制成，其含有相同聚合物组合物的混合较大尺寸和较小尺寸连续单组分聚合物纤维的双峰质量分数/纤维尺寸混合物。 褶皱线形成在非织造纤维网中，并且打褶的纤维网被切割成所需的尺寸和形状，以提供过滤元件，其包含在纤维交叉点的至少某些点处彼此粘合的纤维的自支撑多孔单组分单层基质 并且以1.52米/秒的面速度具有至少15％的平均初始亚微米效率。 过滤元件是抗变形的，不需要过滤介质层中的加强层，双组分纤维或其他增强措施。

    FIBROUS WEB COMPRISING MICROFIBERS DISPERSED AMONG BONDED MELTSPUN FIBERS
    9.
    发明申请
    FIBROUS WEB COMPRISING MICROFIBERS DISPERSED AMONG BONDED MELTSPUN FIBERS 有权
    包含粘结纤维素纤维的微纤维纤维网

    公开(公告)号：US20080026661A1

    公开(公告)日：2008-01-31

    申请号：US11461192

    申请日：2006-07-31

    Applicant: Andrew R. Fox ,  John D. Stelter ,  Timothy J. Lindquist

    Inventor： Andrew R. Fox ,  John D. Stelter ,  Timothy J. Lindquist

    IPC: D04H1/54 ,  D04H1/56 ,  D04H5/06

    CPC classification number: D04H5/06 ,  B01D39/163 ,  D04H1/56 ,  D04H3/03 ,  D04H3/16 ,  Y10T442/614 ,  Y10T442/619 ,  Y10T442/625 ,  Y10T442/626 ,  Y10T442/68 ,  Y10T442/681 ,  Y10T442/69 ,  Y10T442/696

    Abstract: A nonwoven fibrous web comprising a matrix of continuous meltspun fibers bonded to a coherent self-sustaining form, and separately prepared microfibers dispersed among the meltspun fibers. The microfibers may have median diameters less than one or two micrometers. A method for preparing such a nonwoven fibrous web comprises establishing a stream of continuous oriented meltspun fibers having a longitudinal axis, establishing a stream of meltblown microfibers that exit a meltblowing die at a point near the stream of meltspun fibers, the meltblown stream being aimed to merge with the meltspun stream and having a longitudinal axis that forms an angle of between 0 and 90 degrees to the longitudinal axis of the meltspun stream, capturing the meltblown fibers in the stream of meltspun fibers, and collecting the merged stream as a web on a collector spaced near the intersection point of the meltspun and meltblown streams.

    Abstract translation: 一种非织造纤维网，其包含结合到相干自持形式的连续熔融纤维基质，以及分散在熔融纤维之间的单独制备的微纤维。 微纤维的中值粒径可以小于1或2微米。 制备这种非织造纤维网的方法包括建立具有纵向轴线的连续定向熔融纤维流，建立熔融微纤维流，其在熔融纤维流附近的点离开熔喷模头，熔喷流瞄准 与熔融物流融合并且具有与熔融物流的纵向轴线成0度到90度之间的角度的纵向轴线，捕获熔融纤维流中的熔喷纤维，并将合并的流体作为纤维网收集在 收集器在熔融物和熔喷流的交点附近间隔开。

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