Water heating apparatus

Details Water heating apparatus Water heating apparatus

1988-07-07

1990-09-04

Jones, Larry

Stoves and furnaces

Liquid heater

Open-top vessel that may include lid

219292, 237 2R, A47J 2700

Patent

active

049535366

ABSTRACT:
Water heating apparatus by flow of electric current through the water from a set, for example, of eight electrodes whose surface areas for current flow are proportional to the value of two raised to the eight exponents zero to seven, that is 1 to 128. This gives an area range of 1:256 which can be switched in binary digital manner automatically by solid state circuitry in response to a temperature window, electric current flow or other indicators. This gives automatic compensation for wide water conductivity ranges and flow rates without any moving parts to give a practical mass-produced industrial or domestic water heater.

REFERENCES:
patent: 4261333 (1981-04-01), Guarnschelli
patent: 4284062 (1981-08-01), Swindle
patent: 4368549 (1983-01-01), Ramey
patent: 4494526 (1985-01-01), Wurst et al.
patent: 4718403 (1988-01-01), McCall

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