公开(公告)号：US06628894B2

公开(公告)日：2003-09-30

申请号：US09871141

申请日：2001-12-13

申请人： Ken S Winter ,  Roger S. Winter

发明人： Ken S Winter ,  Roger S. Winter

IPC分类号： F24H120

CPC分类号： F24H1/202 ,  F24H1/06 ,  F24H1/08

摘要： A low-cost warm water heater for use in portable toilets, to provide unblended warm water for hand washing provides a small quantity of warm water at a predetermined temperature, the flow being sensibly at ambient pressure. The water system is supplied by hand or foot pump, or gravity feed, using a low power electric immersion heater, within a small, fabricated plastic casing that is of standard fittings, solvent welded to provide a substantially vandal-proof, child-proof heater. Provision of a cold water feed with vacuum break protects the heater against being siphoned dry. Snap-in hose connections simplify assembly and maintenance. While electrically protected by the plastic case construction, electrical ground-fault protection may also be utilized. A stand-alone embodiment incorporates a diaphragm foot pump to provide spurts of warm water.

摘要翻译： 一种用于便携式厕所的低成本温水加热器，为洗手提供未掺合的温水，在预定温度下提供少量温水，流量明显地在环境压力下。 水系统由手动或脚踏泵或重力馈送，使用低功率电浸式加热器，在标准配件的小型制造塑料外壳内，溶剂焊接，以提供基本上防破坏的防儿童加热器 。 提供带有真空断路的冷水进料器可防止加热器被虹吸干燥。 卡入式软管连接可简化组装和维护。 在塑料外壳结构电气保护的同时，也可以使用电气接地故障保护。 独立的实施例包括隔膜脚泵以提供温水喷射。