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2. 发明授权

US5190643A Water treatment device having means to count times used and limit useage 失效
标题翻译：水处理装置具有计数所用时间和限制使用的装置
公开(公告)号：US5190643A
公开(公告)日：1993-03-02
申请号：US818620
申请日：1992-01-10
申请人： J. Kenneth Duncan , Wesley A. Schroeder
发明人： J. Kenneth Duncan , Wesley A. Schroeder
IPC分类号： A47J31/60 , C02F1/00
CPC分类号： C02F1/003 , A47J31/605 , C02F2209/445 , C02F2307/04
摘要： A lid assembly for a portable water treatment device of the type including a vessel with an opened upper end and a replaceable filter cartridge adapted to be contained therein. A lid assembly is adapted to be attached to the opened upper end of the vessel above the replaceable filter cartridge and operable to monitor the number of times the water treatment device is used. The lid assembly includes a housing having a central aperture therethrough communicating with the filter cartridge. A gate member is reciprocally movable between a position closing the aperture in the housing and a position opening the aperture in the housing. In the opened position, water to be treated may be poured into the filter cartridge through the aperture. Indicator means are provided and are movable incrementally in response to movement of the gate member. The indicator means move one increment during a cyclic movement of the gate member from the closed position to the opened position and back to the closed position. Movement of the indicator is limited to a predetermined number of increments, the indicator preventing further movement of the gate member upon reaching a predetermined number of increments.
摘要翻译：一种用于便携式水处理装置的盖组件，其类型包括具有敞开的上端的容器和适于容纳在其中的可替换的滤筒。盖组件适于附接到容纳在可更换过滤器滤芯上方的敞开的上端，并可操作以监测使用水处理装置的次数。盖组件包括具有穿过与滤筒连通的中心孔的壳体。门构件在关闭壳体中的孔的位置和打开壳体中的孔的位置之间可往复移动。在打开位置，待处理的水可以通过孔倒入滤筒中。指示装置被设置并且响应于门构件的运动可以增量地移动。指示器意味着在门构件从关闭位置到打开位置的循环运动期间移动一个增量并且返回到关闭位置。指示器的移动被限制为预定数量的增量，该指示器防止门构件在达到预定数量的增量时进一步移动。

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