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    • 61. 发明授权
    • One-way valve and vacuum relief device
    • 单向阀和真空释放装置
    • US07556178B2
    • 2009-07-07
    • US11085048
    • 2005-03-22
    • Heiner Ophardt
    • Heiner Ophardt
    • B67D5/06B65D37/00
    • B05B11/0059B05B11/0044
    • Liquid dispensers are provided including a vacuum relief mechanism with a vacuum relief device and a one-way valve in series with the vacuum relief device to prevent flow into and out of the reservoir when a vacuum exists in the reservoir. The vacuum relief device comprises an enclosed chamber having an air inlet open to the atmosphere and a liquid inlet in communication with liquid in the reservoir and in which the liquid inlet opens to the chamber at a height below a height at which the air inlet opens to the chamber. The one-way valve is capable of failure, in which case the vacuum relief device alone provides for pressure relief. The vacuum relief valve permits relief of vacuum from the reservoir without moving parts or valves.
    • 提供液体分配器,其包括具有真空释放装置的真空释放机构和与真空释放装置串联的单向阀,以在储存器中存在真空时防止流入和流出储存器。 真空释放装置包括封闭室,其具有通向大气的空气入口和与储存器中的液体连通的液体入口,其中液体入口在空气入口打开的高度以下的高度处通向腔室 房间。 单向阀能够失效,在这种情况下,单独的真空释放装置可以提供减压。 真空释放阀允许从储存器释放真空而不移动部件或阀。