Apparatus and method for cathodically protecting metals...

Details Apparatus and method for cathodically protecting metals... Apparatus and method for cathodically protecting metals...

2008-07-22

2008-07-22

Bell, Bruce F (Department: 1795)

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

Metal or metal alloy

C205S732000, C205S733000, C205S740000, C204S196220, C204S196230, C204S196240, C204S196250, C204S196370

Reexamination Certificate

active

07402233

ABSTRACT:
A cathodic protection system is provided for cathodically protecting an metallic substrate against corrosion, where the system comprises a sacrificial anodic material containing, but not limited to, zinc, magnesium, aluminum or a mixture of these materials, with a ceramic magnet, coupled with a plug, embedded into the sacrificial anode in such a way as to take advantage of the magnetic flux for transfer of electrons from the sacrificial anode to the object being protected, the unit is affixed to the object being protected by use of an electrically-conductive adhesive. The electrical connection may be established via the combination of the ceramic magnet and the electrically-conductive adhesive. The magnet may be magnetized in the direction of its thickness.

REFERENCES:
patent: 2766200 (1956-10-01), Kaufman
patent: 2863819 (1958-12-01), Preiser
patent: 3011959 (1961-12-01), Anderson
patent: 3513082 (1970-05-01), Beer et al.
patent: 3893903 (1975-07-01), Lindholm
patent: 3994794 (1976-11-01), Bohne
patent: 4496444 (1985-01-01), Bagnulo
patent: 4915808 (1990-04-01), McCready et al.
patent: 5525208 (1996-06-01), Pritula et al.
patent: 5728275 (1998-03-01), Twigg

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