Heat-controlled sanitary bathing device

In a water-closet apparatus with a heat-controlled bathing system, including a heater for heating feed water to a predetermined temperature, a bidet portion having nozzle means adapted for spraying heated water supplied from said heater, a pump for feeding water to said heater and nozzle means, and a valve means for controlling the flow rate of water to said heater, the improvement which comprises:

• said control valve means comprising a tubular valve casing defining axially contiguously aligned discharge, supply and recirculating chambers therein;
• an inlet port provided in said valve casing at a location so that feed water from said pump may be supplied to said supply chamber therethrough;
• a discharge port provided in said valve casing at a location so that feed water in said discharge chamber may be fed to said heater therethrough;
• a recirculating port provided in said valve casing at a location so that the feed water in said recirculating chamber may be recirculated to the suction side of said pump;
• main and auxiliary valve seats provided in said valve casing at positions between said discharge and supply chambers and between said supply and recirculating chambers, respectively;
• a valve plug axially movably accommodated in said supply chamber and having main and auxiliary valve faces cooperable with said main and auxiliary valve seats, respectively, for controlling the rate of water flowing therethrough, said valve plug being constantly urged to engage said main valve face with said main valve seat;
• and a valve stem threaded into said valve casing for axial movements and having a portion adapted for abutting engagement with said valve plug for displacing said valve plug so that, by turning said valve stem, feed water supplied to said supply chamber from said pump may be admitted into either one or both of said discharge and recirculating chambers;
• and
• said heater comprising an outer vessel;
• an inner vessel defining a primary chamber therein and placed inside of said outer vessel to define a secondary chamber therebetween;
• a water feed pipe extending between said primary chamber and said outlet port of said water control valve;
• an opening provided in an upper portion of said primary chamber so that said primary chamber is in fluid communication with said secondary chamber;
• first and second heating means for heating water in said primary and secondary chambers to predetermined temperature levels, respectively;
• a heated water feed means extending between said secondary chamber and said nozzle means;
• and means for stopping operation of said pump when the water temperature in said secondary chamber exceeds said predetermined temperature level.