System for protecting metal structures against corrosion
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United States of America Patent
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Jun 21, 1988
Grant Date -
N/A
app pub date -
Feb 20, 1987
filing date -
Feb 20, 1987
priority date (Note) -
Expired
status (Latency Note)
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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.
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