Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2005-11-14
2008-09-16
Bell, Bruce F (Department: 1795)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S196020, C204S196060, C204S196070, C204S196100, C204S196210, C204S196330, C204S196360, C204S196370
Reexamination Certificate
active
07425249
ABSTRACT:
Apparatus10discloses a subsea monitoring station using solar cells to energize at least one electronic circuit incorporating at least one node having a determinable circuit value or other parameter test station providing a full time voltage readout, powered by the lights16on an ROV/AUV14or diver's lamp. An additional element of the apparatus is a subsea cathodic protection test station18incorporating a plurality of banks of solar cells28powering DC voltage test circuits having some form of parameter display, such as voltmeter readout30, deriving voltage from ambient light16provided by outside sources, such as an ROV14or diver's lamp. The apparatus's cathodic protection test system includes four integral voltmeters30of which are powered with independent solar panels28. The solar panels28are powered by artificial light16delivered by diver or submersible vehicle14. The test station18includes sensors48that are hard wired back to the solar powered voltage readouts contained within the subsea pressure housing32. The readout unit20can be incorporated into the structure being monitored, the cathodic protection anode source or can be integrated into a buoyant module42which floats above the sea bed.
REFERENCES:
patent: 5139634 (1992-08-01), Carpenter et al.
patent: 5452262 (1995-09-01), Hagerty
patent: 2002/0041238 (2002-04-01), Johnson et al.
Bell Bruce F
Deepwater Corrosion Services, Inc.
Gardere Wynne & Sewell LLP
Sickler Jennifer S.
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