Electrical transmission or interconnection systems – Anti-electrolysis
Patent
1998-04-24
2000-04-04
Elms, Richard T.
Electrical transmission or interconnection systems
Anti-electrolysis
204196, 205729, 307 101, 4399381, B01D 5940
Patent
active
060465158
ABSTRACT:
An apparatus for prevention of corrosion in metal objects uses a pad having a conductive facing, a dielectric substrate and an adhesive, attached to a metal body being protected from corrosion. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The positive terminal of the source of DC voltage is connected to electronic circuitry that imparts pulses of low voltage DC to the conductive facing of the pad. These pulses of electrical current inhibit the oxidation of the metal object by providing a source of electrons to the oxidizing chemicals in contact with the metal. The electronic circuitry includes a reverse voltage protector to prevent the application of reverse source voltage. The circuitry also includes a power conditioner to supply a constant DC voltage to a microprocessor. The microprocessor generates pulses of DC signals that are amplified by a pulse amplifier and imparted to the conductive facing of the pad. The invention also includes a battery voltage monitor and a power indicator. When the battery voltage drops below a reference level, the microprocessor senses this low voltage condition and shuts off operation of the pulse amplifier, thereby conserving battery power.
REFERENCES:
patent: 3242064 (1966-03-01), Byrne
patent: 3692650 (1972-09-01), Kipps et al.
patent: 4767512 (1988-08-01), Cowatch et al.
patent: 5102514 (1992-04-01), McCready
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