Electric corrosion preventing apparatus

Details Electric corrosion preventing apparatus Electric corrosion preventing apparatus

1980-09-16

1982-01-19

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

315135, 324 51, 324133, 340654, C23F 1300

Patent

active

043115764

ABSTRACT:
An electric corrosion preventing apparatus with a circuit having an indication lamp for indicating an operation state of the apparatus, which is used for preventing an inside wall of a hot-water receptacle, such as a water heater and a boiler, from being corroded by rust. In the circuit, the secondary winding of a voltage-dropping transformer is provided with a couple of diode-capacitor combinations. Those diode-capacitor combinations, respectively, are used for rectifying positive and negative parts of a low AC voltage produced by the secondary winding into positive and negative DC voltages. A positive DC voltage is coupled with an electric corrosion prevention load while a negative DC voltage is coupled with a lamp load. With this circuit arrangement, the positive part of the AC voltage is used for the electric corrosion prevention while the negative part, for the lamp.

REFERENCES:
patent: 2759177 (1956-08-01), Hightower
patent: 3696365 (1972-10-01), Ward
patent: 3953742 (1976-04-01), Anderson et al.
patent: 4139820 (1979-02-01), Rode

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