System for sealing a packaging wrapper

    公开(公告)号:US20060032194A1

    公开(公告)日:2006-02-16

    申请号:US11209135

    申请日:2005-08-22

    Abstract: A system for sealing a packaging wrapper around an object directs a flow of heated air to end flaps of the wrapper to move the end flaps into sealing contact with a body section of the wrapper to substantially enclose the object. The system includes an oven, a conveyor, a source of heated air and a means for deflecting the flow of heated air to the conveyor to seal end flaps of the wrapper with a body section of the wrapper. In use, an object surrounded by the wrapper body section is moved through the oven on a conveying surface of the conveyor, and heated air is moved through the oven bypassing the conveying surface to a region below the conveying surface. The heated air flow then encounters the means for deflecting the heated air flow, which directs the air flow upward and through the conveying surface to impact and move the end flaps into sealing contact with the wrapper body section.

    Fabric light control window covering
    70.
    发明申请
    Fabric light control window covering 失效
    织物灯光控制窗帘

    公开(公告)号:US20020007923A1

    公开(公告)日:2002-01-24

    申请号:US09915074

    申请日:2001-07-25

    Abstract: A fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and, thus, controls the amount of light admitted through the shade. The vanes are bonded to the sheer fabric sheets in a manner which tends to bias the sheer fabric sheets together to the nonlight admitting position. Also, disclosed are methods and apparatus for manufacturing the above window covering. The method features linear application of adhesive to the vane material which provides for a uniform appearance in the finished product. A heat setting process and apparatus is disclosed in which the bonded layers of sheer fabrics and vanes are fed between belts over hot and cool surfaces, under uniform tension and pressure. This provides for heat setting of the layers of the window covering to a uniform temperature-size relationship without inducing wrinkles or distortion into the fabric during heat setting.

    Abstract translation: 一种织物光控窗,其中织物叶片粘合在两个透明织物片之间,使得在垂直于织物叶片的纵向的方向上的透明织物片之间的相对运动改变了织物叶片的角度, 控制通过树荫进入的光量。 叶片以易于将纯粹的织物片材偏压到非光入射位置的方式结合到纯粹的织物片材上。 此外,公开了用于制造上述窗帘的方法和装置。 该方法具有线性应用粘合剂到叶片材料,其在成品中提供均匀的外观。 公开了一种热定型方法和装置,其中在均匀的张力和压力下,透明的织物和叶片的粘合层在热和冷的表面之间在带之间进料。 这提供了将窗帘层的热定形到均匀的温度大小关系,而不会在热定形期间引起织物的皱纹或变形。

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