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1. 发明授权

US5664703A Pump device with collapsible pump chamber having supply container venting system and integral shipping seal 失效
标题翻译：具有可折叠泵室的泵装置具有供应容器排放系统和一体式运输密封件
公开(公告)号：US5664703A
公开(公告)日：1997-09-09
申请号：US441173
申请日：1995-05-15
申请人： John E. Reifenberger , Robert J. Peterson , Robert E. Stahley , J. Randall Stigall , Michael D. Webb , Geneva G. Otten , William Joseph Schmitz
发明人： John E. Reifenberger , Robert J. Peterson , Robert E. Stahley , J. Randall Stigall , Michael D. Webb , Geneva G. Otten , William Joseph Schmitz
IPC分类号： B05B11/00 , B65D47/34 , B65D37/00
CPC分类号： B05B11/3097 , B05B11/0016 , B05B11/0064 , B05B11/3032 , B05B11/3033 , B05B11/3035 , B05B11/3059 , B05B11/3067
摘要： A liquid dispensing pump is provided with a supply container venting system and a shipping seal. The pump device includes an upper and lower housing which are axially movable relative to each other between open and closed shipping seal positions. The dispensing pump includes a collapsible pump chamber with at least one shipping seal functional element integral with the chamber. The pump includes actuation elements which cooperate to prevent pump actuation when the shipping seal is closed. The pump may also include a tamper evident device to prevent pump actuation prior to tamper evident tab removal. The chamber may also include an integral valve which has the valve member biased against the valve seat. A supply container venting system for the pump comprises a resilient annular flange angled downward from the bellows at the liquid entry end. The annular flange presses against an interior surface of the lower housing to seal a supply container vent opening against communication with ambient air and moisture. The annular flange remains in contact with the interior surface until either a vacuum generated in the supply container by pumping fluid therefrom deflects the flange away from the interior surface or at least one lug on the upper housing contacts and deflects the annular flange when the upper housing is actuated downward. A wiper extends from the lower housing in contact with the telescopingly engaged upper housing to further minimize any moisture entry between housings that could accumulate and inadvertently pass into the supply container.
摘要翻译：液体分配泵设置有供应容器排放系统和运输密封件。泵装置包括上和下壳体，它们可以在打开和关闭的运输密封位置之间相对于彼此轴向移动。分配泵包括可折叠泵室，其具有与腔室一体的至少一个运输密封功能元件。泵包括致动元件，其协作以在运输密封件关闭时防止泵致动。泵还可以包括防篡改的装置，以防止在篡改明显的突片移除之前的泵致动。腔室还可以包括具有阀构件偏压抵靠阀座的整体阀。用于泵的供应容器排放系统包括从液体入口端处的波纹管向下倾斜的弹性环形凸缘。环形凸缘压靠下壳体的内表面以密封供应容器通风口，以防止与环境空气和湿气相通。环形凸缘保持与内表面接触，直到通过泵送流体在供应容器中产生的真空将凸缘远离内表面偏转，或者上壳体上的至少一个凸耳接触并偏转环形凸缘，当上壳体被向下致动。擦拭器从下壳体延伸，与可伸缩接合的上壳体接触，以进一步最小化壳体之间可能积聚并无意地进入供应容器的任何水分进入。

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