PROCESSES AND APPARATUS FOR MAKING TRANSVERSELY DRAWN FILMS WITH SUBSTANTIALLY UNIAXIAL CHARACTER
    2.
    发明申请
    PROCESSES AND APPARATUS FOR MAKING TRANSVERSELY DRAWN FILMS WITH SUBSTANTIALLY UNIAXIAL CHARACTER 有权
    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:US20070134364A1

    公开(公告)日:2007-06-14

    申请号:US11624374

    申请日:2007-01-18

    IPC分类号: B29C55/00

    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定义为U =(1 / MDDR-1)/(TDDR 1/2),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:US20070116793A1

    公开(公告)日:2007-05-24

    申请号:US11566247

    申请日:2006-12-04

    IPC分类号: B29C55/08

    CPC分类号: B29C55/08 Y10S425/041

    摘要: An apparatus for processing a film includes a conveyor and an isolated takeaway device. The conveyor includes gripping members that hold opposing edge portions of the film and convey, under influence of a drive member, the film along a machine direction within a stretching region of the apparatus. The conveyor, over substantially the entire stretching region, is configured and arranged to provide diverging, substantially parabolic paths along which the gripping members move to stretch the film. The isolated takeaway device receives the film from the conveyor and includes gripping members to grasp opposing takeaway regions of the film directly from the stretching region and convey the film in the machine direction. In another embodiment, the conveyor provides diverging curvilinear paths along which the gripping members move to stretch the film. An isolated takeaway device includes opposing flexible, continuous gripping mechanisms for grasping opposing takeaway regions of the film.

    摘要翻译: 一种用于处理薄膜的设备包括输送机和隔离的外卖设备。 输送机包括保持膜的相对边缘部分的夹持构件,并且在驱动构件的影响下沿着机器方向在该装置的拉伸区域内输送膜。 输送机在基本上整个拉伸区域上被构造和布置成提供发散的基本抛物线的路径,夹持构件沿着该路径移动以拉伸薄膜。 隔离的外包装置从输送机接收薄膜,并且包括夹持构件,以直接从拉伸区域抓住薄膜的相对的外取区域并沿纵向方向输送薄膜。 在另一个实施例中,输送机提供发散的曲线路径,夹持构件沿着该曲线路径移动以拉伸薄膜。 隔离的外包装置包括用于抓住膜的相对外取区域的相对的柔性连续夹持机构。

    Flat-folded personal respiratory protection devices and processes for preparing same
    5.
    发明申请
    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:US20050139218A1

    公开(公告)日:2005-06-30

    申请号:US11069531

    申请日:2005-02-28

    摘要: A personal respiratory protection device that comprises a mask body and an exhalation valve that is secured to the mask body. The mask body includes (i) a flat central panel; (ii) a flat first panel joined to the central panel through a fold-line, seam weld, or bond, the fold-line, seam, weld or bond of the first panel being substantially coextensive with an edge of the central panel; (iii) a flat second panel joined to the central panel through a fold-line, seam, weld or bond, the fold-line, seam, weld or bond of the second panel being substantially coextensive with an edge of the central panel. At least one of the center, first and second panels includes filter media. The device is capable of being folded for storage with the first and second panels in at least partial face-to-face contact with a common surface of the central panel and, during use, is capable of forming, over the nose and mouth of the wearer, a cup-shaped air chamber having a face-contacting periphery.

    摘要翻译: 一种个人呼吸保护装置,其包括固定到面罩主体的面罩主体和呼气阀。 面罩主体包括(i)平坦的中央面板; (ii)通过折线,缝焊或接合连接到中心板的平坦的第一面板,第一面板的折线,接缝,焊接或接合部与中心面板的边缘基本上共同延伸; (iii)通过折叠线,接缝,焊接或接合连接到中心面板的平坦的第二面板,第二面板的折线,接缝,焊接或接合部与中心面板的边缘基本上共同延伸。 中心,第一和第二面板中的至少一个包括过滤介质。 该装置能够被折叠以便与第一和第二面板一起存储,与中心面板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在鼻部和鼻部 佩戴者,具有面接触周边的杯形空气室。

    FLAT-FOLDED PERSONAL RESPIRATORY PROTECTION DEVICES AND PROCESSES FOR PREPARING SAME
    6.
    发明申请
    FLAT-FOLDED PERSONAL RESPIRATORY PROTECTION DEVICES AND PROCESSES FOR PREPARING SAME 失效
    平折式个人呼吸保护装置及其制备方法

    公开(公告)号:US20060180152A1

    公开(公告)日:2006-08-17

    申请号:US11279976

    申请日:2006-04-17

    IPC分类号: A62B23/02 A62B18/02 A62B19/00

    摘要: A personal respiratory protection device that comprises a mask body and an exhalation valve that is secured to the mask body. The mask body includes (i) a flat central panel; (ii) a flat first panel joined to the central panel through a fold-line, seam weld, or bond, the fold-line, seam, weld or bond of the first panel being substantially coextensive with an edge of the central panel; (iii) a flat second panel joined to the central panel through a fold-line, seam, weld or bond, the fold-line, seam, weld or bond of the second panel being substantially coextensive with an edge of the central panel. At least one of the center, first and second panels includes filter media. The device is capable of being folded for storage with the first and second panels in at least partial face-to-face contact with a common surface of the central panel and, during use, is capable of forming, over the nose and mouth of the wearer, a cup-shaped air chamber having a face-contacting periphery.

    摘要翻译: 一种个人呼吸保护装置,其包括固定到面罩主体的面罩主体和呼气阀。 面罩主体包括(i)平坦的中央面板; (ii)通过折线,缝焊或接合连接到中心板的平坦的第一面板,第一面板的折线,接缝,焊接或接合部与中心面板的边缘基本上共同延伸; (iii)通过折叠线,接缝,焊接或接合连接到中心面板的平坦的第二面板,第二面板的折线,接缝,焊接或接合部与中心面板的边缘基本上共同延伸。 中心,第一和第二面板中的至少一个包括过滤介质。 该装置能够被折叠以便与第一和第二面板一起存储,与中心面板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在鼻部和鼻部 佩戴者,具有面接触周边的杯形空气室。