System for protecting metal structures against corrosion

Details System for protecting metal structures against corrosion System for protecting metal structures against corrosion

1987-02-20

1988-06-21

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204196, C23F 1300

Patent

active

047523689

ABSTRACT:
A corrosion protection system comprises a circuit which includes rectifiers connecting the structure being protected to an alternating current source for producing negative current flow from the source to the device. An impedance is connected in circuit with the rectifier and the structure and a control is connected to the rectifier for applying a voltage thereto which controls the electron current flowing through the impedance to the structure.

REFERENCES:
patent: 1558647 (1925-10-01), Thalhofer
patent: 1576581 (1926-03-01), Elmore et al.
patent: 1581024 (1926-04-01), Shnetzer
patent: 1611853 (1926-12-01), Creighton
patent: 1736986 (1929-11-01), Thalhofer
patent: 2435973 (1948-02-01), MacTaggart et al.
patent: 2986512 (1961-05-01), Sabins
patent: 3425921 (1969-02-01), Sudrabin
patent: 3859588 (1975-01-01), Titus

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