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1. 发明授权

US4947025A Portable electric water heater for outdoor use 失效
标题翻译：便携式电热水器户外使用
公开(公告)号：US4947025A
公开(公告)日：1990-08-07
申请号：US210316
申请日：1988-06-22
申请人： Gregory A. Alston , Kirt R. Cattron
发明人： Gregory A. Alston , Kirt R. Cattron
IPC分类号： F24H1/06 , F24H1/10
CPC分类号： F24H1/102 , F24H1/06 , F24H1/08
摘要： A portable electric water heater for supplying a continuous flow of hot water for outdoor home use includes an impact resistant waterproof housing having a coiled water conducting cooper tube disposed therein and wrapped with an electrical resistance heating element. A manually operated rheostat adjusts the heating current received through a power cord from a standard 110 Volt current source. The tube has a cold water inlet and a hot water outlet adapted to fit standard garden hoses and faucets. Wheels and legs support the housing and a handle facilitates movement thereof. Alternate smaller versions employ skid runners or caster wheels for portability and may have conducting tube sections positioned in a horizontal plane adjacent a respective heating element.Each embodiment utilizes an on/off toggle switch and a flow responsive pressure switch in series with the rheostat. A pop-off valve is also provided. The rheostat is arranged in circuit to permit preheating of the water by a minimum current flow when the flow switch is open due to lack of water flow through the tube.
摘要翻译：一种便携式电热水器，用于供户外使用的热水连续流动，包括具有设置在其中并被电阻加热元件包裹的卷绕水导管管的耐冲击防水壳体。手动变阻器通过电源线从标准的110 Volt电流源调节加热电流。管子有一个冷水入口和一个热水出口，适合标准的花园软管和水龙头。轮和腿支撑壳体并且手柄便于其移动。替代的较小版本采用滑动滑道或脚轮来移动，并且可以具有定位在与相应加热元件相邻的水平平面内的导管部分。每个实施例利用与变阻器串联的开/关拨动开关和流量响应压力开关。还提供了一个截止阀。当流量开关由于缺少通过管的水流而打开时，变阻器被布置在电路中以允许最小电流流动预热水。

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