Liquid purification or separation – Processes – Separating
Reexamination Certificate
2005-02-28
2008-11-11
Upton, Christopher (Department: 1797)
Liquid purification or separation
Processes
Separating
C210S800000, C210S525000, C210S540000
Reexamination Certificate
active
07449121
ABSTRACT:
A method for removal of surface scum in an apparatus, which includes at least a first surface chute arrangement that exists in a liquid basin and which is meant for removal of surface scum. Surface scum is exhausted by an overflow arrangement belonging to the first surface chute arrangement and being based on a continuous flow, with which surface scum is overflown in at least two successive phases. Also an arrangement for removal of surface scum operating according to the method.
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PCT/ISA/210—International Search Report.
PCT/IPEA/409—International Preliminary Report on Patentability.
PCT/ISA/237—Written Opinion of the International Searching Authority.
Finnket Ju Invest Oy
Franklin Eric J.
Upton Christopher
Venable LLP
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