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    • 31. 发明授权
    • Contamination-preventing closure
    • 防污封闭
    • US4171061A
    • 1979-10-16
    • US883777
    • 1978-03-06
    • Harold R. BurroughsWillie E. MartinVernon J. Jordan
    • Harold R. BurroughsWillie E. MartinVernon J. Jordan
    • B65D51/18
    • B65D51/18B65D2251/0015B65D2251/0062B65D2251/0075
    • A closure including a rigid thermoplastic member with a horizontally extending first portion occupying a major portion of the cross-sectional area within the loading aperture which is surrounded by the loading member of the hopper car, a second portion extending upwardly from the first portion which is inwardly adjacent of the interior of the loading member and a third portion extending outwardly from the second portion and overlaying the top of the loading member and underlaying the hatch cover of the hopper car when the hatch cover is in its closed position. Also a flexible plastic member overlaying the rigid thermoplastic member and the loading member and underlaying the hatch cover when the hatch cover is in its closed position.
    • 包括刚性热塑性构件的封闭件,其具有水平延伸的第一部分,占据加载孔内的横截面积的主要部分,该加载孔由料斗车厢的装载构件包围,第二部分从第一部分向上延伸, 向内靠近装载构件的内部;以及第三部分,其从第二部分向外延伸并覆盖装载构件的顶部,并且当舱口盖处于其关闭位置时,垫底料斗车厢的舱口盖。 而且,当舱口盖处于其关闭位置时,覆盖刚性热塑性构件和装载构件的柔性塑料构件和垫板盖板。
    • 32. 发明授权
    • Vented closure
    • 通风封闭
    • US4136796A
    • 1979-01-30
    • US633907
    • 1975-11-20
    • Robert A. DuboisWilliam H. Gushard
    • Robert A. DuboisWilliam H. Gushard
    • B65D51/16B65D51/18
    • B65D51/1616B65D51/18B65D2251/0015B65D2251/0075
    • A closure is provided for a container opening. The opening is defined by a neck extending outwardly from the top of the container. The closure includes a liner cap disposed both interiorly and exteriorly of the neck and defines a central passage. A plug extends across the top of the cap to close off the passage from the exterior. The plug is provided with at least one longitudinal hole. The lower end of the plug has attached thereto a membrane extending across the passage. This membrane does not permit liquids within the container to pass therethrough, but possesses the property of being capable of venting gasses therethrough. A dust cap may extend across the top of the closure during shipment and storage.
    • 为容器开口提供封闭件。 开口由从容器顶部向外延伸的颈部限定。 封闭件包括设置在颈部的内部和外部并限定中心通道的衬里盖。 塞子延伸穿过盖的顶部以从外部封闭通道。 插头设有至少一个纵向孔。 插头的下端连接有延伸穿过通道的膜。 该膜不允许容器内的液体通过,但具有能够将气体排出的特性。 在运输和储存期间,防尘帽可能会延伸穿过密封件的顶部。