Electric instantaneous water heater with enhanced temperature co

Details Electric instantaneous water heater with enhanced temperature co Electric instantaneous water heater with enhanced temperature co

1986-07-22

1988-11-22

Bartis, Anthony

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219308, 219316, 219322, 219328, H05B 102, H05B 382, F24H 110

Patent

active

047867825

ABSTRACT:
An instantaneous water heater with enhanced temperature control and less variation in output water temperature has an output hot water pipe extending into a heating tank through the top thereof and surrounded by a coiled sheath electric heater for heating the water in the tank, the output pipe extending to the tank bottom and provided with an inlet thereat. An inlet pipe for water to be heated extends into the bottom of the tank and is throttled to provide an accelerated flow of incoming water away from the heater and outlet pipe toward an overheat prevention thermostat mounted externally on the top of the tank and connected to the heater. An output hot water temperature sensor located within the output water pipe adjacent the inlet thereof cooperates with a control unit of regulating operation of the heater to maintain the hot water output temperature at a preset level. The inlet to the water output pipe is throttled to insure mixing of the heated water, accurate temperature measurement and the reduction of scale deposition on the temperature sensor.

REFERENCES:
patent: 942894 (1909-12-01), Farren et al.
patent: 1519395 (1924-12-01), Clemch
patent: 1634704 (1927-07-01), Brand
patent: 1767122 (1930-06-01), Dean
patent: 2033443 (1936-03-01), Moses
patent: 2446367 (1948-08-01), Graves
patent: 3617700 (1971-11-01), Hooper
patent: 4358665 (1982-11-01), Owen
Abstract of Japan 115931, Published Jul. 4, 1984, entitled "Heat Exchanger for Electric Tap-Controlled Hot Water Supplier, " (English Language Abstract of Oct. 31, 1984).

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