Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2006-03-21
2006-03-21
Anthony, Joseph D. (Department: 1714)
Liquid purification or separation
Processes
Chemical treatment
C525S326800, C525S282000, C525S355000, C525S356000, C525S357000, C525S358000, C424S078360, C424S405000, C252S187330, C252S187340, C210S753000, C210S756000, C210S199000, C210S200000, C210S210000, C210S206000, C422S037000
Reexamination Certificate
active
07014781
ABSTRACT:
A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that flows in contact with the chlorinated polystyrene hydantoin beads, resulting in treated water suitable for drinking.
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Bridges Michael A.
Chen Tay-Yuan
Kawai Hiroyuki
McClure Steven
Nichols Everett J.
Anthony Joseph D.
Christensen O'Connor Johnson & Kindness PLLC
Vanson Halosource, Inc.
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