Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Reexamination Certificate
2011-05-03
2011-05-03
Phasge, Arun S (Department: 1724)
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
C204S228100
Reexamination Certificate
active
07935236
ABSTRACT:
A system and method for de-watering porous material, e.g., concrete. In select embodiments, durable, dimensionally stable anodes (DDAs), preferably configured as arrays on a strip, are impressed into the concrete and a pulsed signal is provided by a DC power supply to the DDAs and cathode rods inserted in soil. The DDAs comprise a valve metal substrate mesh having a semi-conductive coating of a precious metal, cement or ceramic. In select embodiments, conducting grout of a hydraulic cement-based mineral-aggregate may be used to emplace the DDAs. In select embodiments, a single cycle of the signal comprises a pulse train consisting of an initial positive pulse followed by a shorter duration negative pulse and ending with a short off period before re-cycling. The cycles continue until the porous material has been sufficiently treated.
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Femmer Paul D.
Hock, Jr. Vincent F.
Marshall Orange S.
McInerney Michael K.
Morefield Sean
Baugher Jr. Earl H.
Phasge Arun S
The United States of America as represented by the Secretary of
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