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    Valve construction
    11.
    发明授权
    Valve construction 失效
    阀门结构

    公开(公告)号：US4259984A

    公开(公告)日：1981-04-07

    申请号：US956370

    申请日：1978-10-31

    申请人： Eugene B. Pemberton ,  Richard L. Fahl

    发明人： Eugene B. Pemberton ,  Richard L. Fahl

    IPC分类号： F16K17/194 ,  F16K17/38 ,  F16K15/06

    CPC分类号： F16K17/38 ,  F16K17/194 ,  Y10T137/778 ,  Y10T137/792

    摘要： A pressure and vacuum relief vent has the stem of each of its pressure and vacuum valves, which are urged to their closed positions by weight, slidably mounted in a bushing of Teflon in a metallic seat ring so that corrosive build up does not occur on the bushing whereby each of the valves is responsive to the desired pressure differential due to weight. Each of the seat rings has a seat insert of Teflon locked in a groove in the seat ring with an epoxy seal between an outer inclined surface of the seat insert and an inner surface of the seat ring.

    摘要翻译： 压力和真空释放口具有其压力和真空阀中的每一个的阀杆，其被推动到其重量关闭位置，可滑动地安装在特氟隆的衬套中的金属阀座环中，使得腐蚀性积聚不会在 其中每个阀由于重量而响应于期望的压力差。 每个座圈具有固定在座圈中的凹槽中的特氟隆的座插件，在座插入件的外倾斜表面和座环的内表面之间具有环氧密封。

    Pressure-vacuum relief valve assembly
    12.
    发明授权
    Pressure-vacuum relief valve assembly 失效
    压力真空安全阀组件

    公开(公告)号：US3968897A

    公开(公告)日：1976-07-13

    申请号：US519350

    申请日：1974-10-30

    申请人： Robert E. Rodgers

    发明人： Robert E. Rodgers

    IPC分类号： F16K15/14 ,  F16K17/194 ,  F16K17/196 ,  G05D16/06 ,  F16K17/18

    CPC分类号： F16K17/196 ,  F16K15/148 ,  F16K17/194 ,  Y10S220/33 ,  Y10T137/778 ,  Y10T137/789

    摘要： A safety-pressure-vacuum relief valve assembly for vehicle fuel tanks and the like which is adapted either to be mounted at an external point on the vehicle and connected to the interior of the tank by a conduit or to be a part of the cap for the conventional tank filler neck. The assembly comprises a fitting having an upwardly facing annular flange area concentric with the axis of the fitting, a circular plate concentrically resting on the flange, an inverted cup providing a peripheral skirt having a concentric and peripherally extending shoulder above the flange, the cup and fitting being secured against axial separation to capture the said plate therebetween, and an annular flexible gasket having an outer peripheral portion gripped between the plate and the shoulder of the cup and an inner peripheral bead engaging the upper surface of the plate normally to close pressure relief openings in the plate. A spring loaded valve plate urges the radially inward portion of the gasket against the upper surface of the plate. The center of the plate is provided with a vacuum valve opening extending therethrough which is normally closed by a vacuum valve member. The fitting is either connected to the interior of the tank by means of a flexible conduit or the fitting is firmly engaged by the skirt of a filler cap outer shell, in which case the fitting provides an opening through which the valve assembly communicates with the interior of the tank.

    摘要翻译： 一种用于车辆燃料箱等的安全压力 - 真空安全阀组件，其适于安装在车辆的外部点并通过管道连接到罐的内部，或者作为帽的一部分 常规罐加油口。 该组件包括配件，其具有与配件的轴线同心的向上的环形凸缘区域，同心地搁置在凸缘上的圆形板，倒置杯，其提供具有在凸缘上方同心且周向延伸的肩部的外围裙部，杯和 固定件抵抗轴向分离以在其间捕获所述板;以及环形柔性衬垫，其具有夹在所述板和所述杯的肩部之间的外周部分，以及与所述板的上表面接合的内周珠通常以闭合压力释放 板上的开口。 弹簧加载的阀板将垫圈的径向向内的部分推压到板的上表面。 板的中心设有一个贯穿其中的真空阀开口，它通常由真空阀构件封闭。 配件通过柔性导管连接到罐的内部，或者配件通过填料盖外壳的裙部牢固地接合，在这种情况下，配件提供开口，阀组件通过该开口与内部连通 的坦克。