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    Processes and apparatus for making transversely drawn films with substantially uniaxial character
    1.
    发明授权
    Processes and apparatus for making transversely drawn films with substantially uniaxial character 有权
    制造具有基本单轴性能的横向拉伸薄膜的方法和设备

    公开(公告)号：US07740470B2

    公开(公告)日：2010-06-22

    申请号：US11624374

    申请日：2007-01-18

    申请人： William Ward Merrill ,  Jeffery N. Jackson ,  Andrew T. Ruff ,  John A. Wheatley ,  Dennis L. Krueger

    发明人： William Ward Merrill ,  Jeffery N. Jackson ,  Andrew T. Ruff ,  John A. Wheatley ,  Dennis L. Krueger

    IPC分类号： B29C55/08

    CPC分类号： B29C55/08 ,  B29C55/20 ,  B29C69/001 ,  B29C2793/009 ,  B29K2067/003 ,  B29K2995/0051 ,  B29L2011/00 ,  Y10S425/041

    摘要： A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR−1)/(TDDR1/2−1), wherein TDDR is greater than 4 at an end of the stretching region.

    摘要翻译： 用于基本上单轴定向的拉伸机包括多个夹持构件，用于保持膜的相对边缘部分，夹持构件沿着该路径沿拉伸区域延伸膜的路径，以及用于输送膜和夹持构件的驱动机构 沿着机器方向。 拉伸区域中的路径的至少一部分限定了设置在平面内的发散的曲线。 这些路径被配置为使得在拉伸过程中，U轴在零和单位之间的范围内，并且在实现TDDR之后在拉伸的最后部分中单轴性质U的最小值至少为0.70 的2.5。 U被定义为U =（1 / MDDR-1）/（TDDR1 / 2-1），其中在拉伸区域的末端TDDR大于4。

    PROCESSES AND APPARATUS FOR MAKING TRANSVERSELY DRAWN FILMS WITH SUBSTANTIALLY UNIAXIAL CHARACTER
    4.
    发明申请
    PROCESSES AND APPARATUS FOR MAKING TRANSVERSELY DRAWN FILMS WITH SUBSTANTIALLY UNIAXIAL CHARACTER 审中-公开
    用于制造具有主要单一字符的横向拉伸膜的方法和装置

    公开(公告)号：US20100254002A1

    公开(公告)日：2010-10-07

    申请号：US12819329

    申请日：2010-06-21

    申请人： William Ward Merrill ,  Jeffery N. Jackson ,  Andrew T. Ruff ,  John A. Wheatley ,  Dennis L. Krueger

    发明人： William Ward Merrill ,  Jeffery N. Jackson ,  Andrew T. Ruff ,  John A. Wheatley ,  Dennis L. Krueger

    IPC分类号： G02B5/30 ,  B29C55/08

    CPC分类号： B29C55/08 ,  B29C55/20 ,  B29C69/001 ,  B29C2793/009 ,  B29K2067/003 ,  B29K2995/0051 ,  B29L2011/00 ,  Y10S425/041

    摘要： A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR−1)/(TDDR1/2−1), wherein TDDR is greater than 4 at an end of the stretching region.

    摘要翻译： 用于基本上单轴定向的拉伸机包括多个夹持构件，用于保持膜的相对边缘部分，夹持构件沿着该路径沿拉伸区域延伸膜的路径，以及用于输送膜和夹持构件的驱动机构 沿着机器方向。 拉伸区域中的路径的至少一部分限定了设置在平面内的发散的曲线。 这些路径被配置为使得在拉伸过程中，U轴在零和单位之间的范围内，并且在实现TDDR之后在拉伸的最后部分中单轴性质U的最小值至少为0.70 的2.5。 U被定义为U =（1 / MDDR-1）/（TDDR1 / 2-1），其中在拉伸区域的末端TDDR大于4。

    Flat-folded personal respiratory protection devices and processes for preparing same
    8.
    发明授权
    Flat-folded personal respiratory protection devices and processes for preparing same 失效
    平折个人呼吸防护装置及其制备方法

    公开(公告)号：US06886563B2

    公开(公告)日：2005-05-03

    申请号：US10798581

    申请日：2004-03-11

    申请人： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

    发明人： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

    IPC分类号： A62B18/02 ,  A41D13/11 ,  A62B7/10 ,  A62B23/02

    CPC分类号： A62B23/025 ,  A41D13/11 ,  A41D13/1115

    摘要： Fold-flat personal respiratory protection devices that have a flat substantially rectangular central portion having first and second edges, at flat first member joined to the first edge of the central portion through either a fold-line, seam, weld or bond, said fold, bond, weld or seam of the first member being substantially coextensive with said first edge of said central portion, and a flat second member joined to the second edge of the central portion through either a fold-line, seam, weld or bond, the fold, bond, weld or seam of the second member being substantially coextensive with said second edge of said central portion. At least one of the central portion and first and second members are formed from filter media. The device is capable of being folded flat for storage with the first and second members being in at least partial face-to-face contact with a common surface of the central portion and, during use, is capable of forming a cup-shaped air chamber over the nose and mouth of the wearer with the unjoined edges of the central portion and first and second members adapted to contact and be secured to the nose, cheeks and chin of the wearer. The outer boundary of the unjoined edges which are adapted to contact the nose, cheeks and chin of the wearer are less than the perimeter of the device in the flat folded storage state. Also provided are process for preparing such devices.

    摘要翻译： 折叠式个人呼吸保护装置，具有平坦的大致矩形的中心部分，具有第一和第二边缘，平坦的第一部件通过折线，接缝，焊接或接合连接到中心部分的第一边缘，所述折叠部分， 所述第一构件的接合，焊缝或接缝与所述中心部分的所述第一边缘基本上共同延伸;以及平坦的第二构件，其通过折叠线，接缝，焊接或接合连接到所述中心部分的第二边缘，所述折叠 ，所述第二构件的接合，焊接或接缝与所述中心部分的所述第二边缘基本上共同延伸。 中心部分和第一和第二部件中的至少一个由过滤介质形成。 该装置能够被折叠成平坦的，用于存储，其中第一和第二构件与中心部分的共同表面至少部分地面对面接触，并且在使用期间能够形成杯形空气室 在中心部分的未接合的边缘处穿过穿着者的鼻子和嘴部，并且第一和第二构件适于接触并固定到穿着者的鼻子，脸颊和下巴。 适合接触穿戴者的鼻子，脸颊和下颚的非接合边缘的外边界小于平折折叠存储状态下的装置的周边。 还提供了用于制备这种装置的过程。

    Processes for preparing flat-folded personal respiratory protection devices
    9.
    发明授权
    Processes for preparing flat-folded personal respiratory protection devices 失效
    制作平折个人呼吸防护装置的方法

    公开(公告)号：US06715489B2

    公开(公告)日：2004-04-06

    申请号：US10247674

    申请日：2002-09-19

    申请人： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

    发明人： Graham J. Bostock ,  John W. Bryant ,  Desmond T. Curran ,  Christopher P. Henderson ,  Dennis L. Krueger ,  James F. Dyrud

    IPC分类号： A62B1802

    CPC分类号： A41D13/1161 ,  A41D13/1115 ,  A41D13/1138 ,  A41D13/1184 ,  A62B23/025

    摘要： Fold-flat personal respiratory protection devices are provided. The devices have a flat central portion having first and second edges, a flat first member joined to the first edge through either a fold-line, seam, weld or bond that is substantially coextensive with the first edge, and a flat second member joined to the second edge through either a fold-line, seam, weld or bond that is substantially coextensive with the second edge. At least one of the central portion and first and second members are formed from filter media. The device is capable of being folded flat for storage with the first and second members being in at least partial face-to-face contact with a common surface of the central portion and, during use, is capable of forming a cup-shaped air chamber over the nose and mouth of the wearer.

    摘要翻译： 提供折叠式个人呼吸防护装置。 所述装置具有平坦的中心部分，其具有第一和第二边缘，平坦的第一部件通过与所述第一边缘基本共同延伸的折叠线，接缝，焊接或接合而接合到所述第一边缘，以及平坦的第二部件， 所述第二边缘通过与所述第二边缘基本共同延伸的折线，接缝，焊接或接合。 中心部分和第一和第二部件中的至少一个由过滤介质形成。 该装置能够被折叠成平坦的，用于存储，其中第一和第二构件与中心部分的共同表面至少部分地面对面接触，并且在使用期间能够形成杯形空气室 在穿着者的鼻子和嘴巴上。