Patent ID: 6875336

Claim:
An apparatus for prevention of oxidation of a metal object connected to an electrical ground, said metal object being in an oxidizing environment, comprising: (a) a source of DC voltage connected to the ground, said source having a first voltage; (b) a first fastener attached to the metal object; (c) a second fastener attached to the metal object (d) a first and second capacitor each having a negative side and a positive side, each negative side coupled to a fastener; (e) a pulse amplifier having phase compensation circuitry coupled to a positive side of each capacitor, said pulse amplifier adapted to provide an phase compensated amplified pulsed signal to each capacitor thereto upon provision of a pulsed signal; and (f) a phase sensor for determining the phase of each signal at each fastener; and (e) a microprocessor operatively coupled to the source of DC voltage and to the pulse amplifier, the microprocessor providing a phase compensation signal for each pulsed signal to the pulse amplifier so that each signal applied to the metal object is in phase.