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    DEVICE FOR HEAT SHRINKING FILM ONTO AN OPEN-TOPPED CONTAINER
    74.
    发明申请
    DEVICE FOR HEAT SHRINKING FILM ONTO AN OPEN-TOPPED CONTAINER 无效
    用于热收缩膜的开启顶盖容器的装置

    公开(公告)号：US20030012920A1

    公开(公告)日：2003-01-16

    申请号：US08977374

    申请日：1997-11-24

    发明人： WILLIAM J. BAKKER

    IPC分类号： B32B005/00

    CPC分类号： B65B7/167 ,  B29C61/00 ,  B29C65/14 ,  B29C65/1412 ,  B29C65/1416 ,  B29C65/1448 ,  B29C65/1454 ,  B29C65/1464 ,  B29C65/1477 ,  B29C65/148 ,  B29C65/1483 ,  B29C65/66 ,  B29C66/131 ,  B29C66/135 ,  B29C66/24221 ,  B29C66/53461 ,  B29C66/652 ,  B29C66/73711 ,  B29C66/73713 ,  B29C66/73715 ,  B29C66/7392 ,  B29C66/8322 ,  B29C2035/0822 ,  B29C2793/00 ,  B29L2031/7132 ,  Y10T428/24

    摘要： A device for heat shrinking thin film onto open-topped containers to form spill-resistant covers is shown. A radiant energy source is intermittently energized in association with timers to direct radiant energy towards the thin film. An energy absorbing body is associated with the thin film to absorb energy and create heat adjacent to the film which in turn causes the thin film to shrink. The energy absorbing body can be the adaptation of the thin film to be opaque to the radiant energy by either being coated with an energy absorbing coating such as printing, or being made partially opaque by means of tinting. The container can also be adapted to absorb energy by including a darkened band adjacent the upper edge of the rim. The device can also interpose an energy absorbing body, such as a darkened aluminum screen adjacent to the film to be heated to cause the thin film to shrink. The device shrinks the thin film around the rim first, then shrinks the film across the top of the container to form a spill-resistant cover. In one embodiment, printed patterns on the film can be used to create perforations.

    摘要翻译： 示出了用于将薄膜热收缩到开顶容器上以形成防溢盖的装置。 辐射能源与定时器相关联地间歇地通电，以将辐射能量引向薄膜。 能量吸收体与薄膜相关联以吸收能量并在膜附近产生热量，这又导致薄膜收缩。 能量吸收体可以通过涂覆能量吸收涂层（例如印刷）或通过着色而部分不透明地将薄膜适应于辐射能不透明。 容器还可以通过在边缘的上边缘附近包括变暗的带来吸收能量。 该装置还可以将能量吸收体（例如暗的铝屏幕）与待加热的膜相邻，以使薄膜收缩。 该装置首先将薄膜收缩在边缘周围，然后将薄膜收缩在容器顶部以形成防溢出盖。 在一个实施例中，胶片上的印刷图案可用于产生穿孔。

    Welding method and apparatus
    77.
    发明授权
    Welding method and apparatus 有权
    焊接方法及装置

    公开(公告)号：US6064798A

    公开(公告)日：2000-05-16

    申请号：US350590

    申请日：1999-07-09

    申请人： Donald C. Lovett ,  David A. Grewell

    发明人： Donald C. Lovett ,  David A. Grewell

    IPC分类号： B29C35/08 ,  B29C65/14 ,  F21V9/00

    CPC分类号： B29C66/8181 ,  B29C65/1435 ,  B29C65/148 ,  B29C65/1496 ,  B29C66/45 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/952 ,  B29C2035/0822 ,  B29C65/1412 ,  B29C66/71 ,  B29K2025/00 ,  B29K2069/00 ,  B29K2101/12

    摘要： A filter for absorbing electromagnetic radiation which is used in heating a welding zone wherein a first part is joined to a second part. The filter includes a solid material for absorbing undesired wavelengths of radiation from a heating source before the radiation reaches the welding zone. The filter also has a housing which contains a chamber within which a fluid is placed. The fluid cools the solid material and also may absorb undesired wavelengths of radiation from the heating source before the radiation reaches the welding zone. A heat exchanger is connected to the filter in order to cool the fluid during the filtering process.

    摘要翻译： 一种用于吸收电磁辐射的过滤器，其用于加热焊接​​区域，其中第一部分连接到第二部分。 过滤器包括用于在辐射到达焊接区之前从加热源吸收不期望的波长的辐射的固体材料。 过滤器还具有壳体，该壳体包含容纳流体的腔室。 流体冷却固体材料，并且还可以在辐射到达焊接区域之前吸收来自加热源的不期望的波长的辐射。 过滤器连接有热交换器，以便在过滤过程中冷却流体。