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    • 5. 发明申请
    • PRESSURE EQUALIZING CLOSURE
    • 压力均衡封闭
    • WO2011094578A1
    • 2011-08-04
    • PCT/US2011/022974
    • 2011-01-28
    • GRAHAM PACKAGING COMPANY, L.P.WURSTER, Michael, P.BYSICK, Scott, E.WALTEMYER, RobertKELLEY, Paul
    • WURSTER, Michael, P.BYSICK, Scott, E.WALTEMYER, RobertKELLEY, Paul
    • B65D51/16B65D79/00
    • B65D51/1616B65D79/005
    • The present invention provides a closure for a hot-fill container comprising: a cap member having a top surface, a bottom surface, and a wall portion having an outer surface and an inner surface wherein the inner surface comprises threads to mate with a threaded neck finish of a hot-fill container; a flexible diaphragm member comprising: at least one flexible portion in a first position and a sealing lip portion to seal a liquid in the container thus preventing the liquid from traveling to the threaded neck finish of the container; and a disc member interposed between the cap member and the diaphragm member, wherein the disc member comprises: a hydrophobic filter membrane and at least one vent providing a path for air to travel from an area near the threads to the hydrophobic filter member, wherein the flexible diaphragm member flexes to compensate for a change in pressure within the container by transitioning downwards in response to a decrease in pressure and/or by transitioning upwards in response to an increase in pressure.
    • 本发明提供了一种用于热填充容器的封闭件,包括:盖构件,其具有顶表面,底表面和具有外表面和内表面的壁部分,其中内表面包括与螺纹颈部配合的螺纹 热填充容器的完成; 柔性隔膜构件包括:在第一位置的至少一个柔性部分和密封唇部分,以密封容器中的液体,从而防止液体行进到容器的螺纹颈部处理; 以及插入在所述盖构件和所述隔膜构件之间的盘构件,其中所述盘构件包括:疏水性过滤膜和至少一个通气口,其提供空气从所述螺纹附近的区域行进到所述疏水性过滤构件的路径,其中, 柔性隔膜构件弯曲以响应于压力的降低和/或通过响应于压力的增加向上过渡而向下向下转变以补偿容器内的压力变化。