Liquid purification or separation – Flow – fluid pressure or material level – responsive – Float
Reexamination Certificate
2006-07-26
2008-09-30
Upton, Christopher (Department: 1797)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Float
C210S241000, C210S416100, C210S527000, C210S537000, C015S320000, C015S340100, C134S104400, C134S16800C
Reexamination Certificate
active
07429319
ABSTRACT:
The present invention discloses a sewage slurry separation system adapted to assist in sewer cleaning operations. The sewage slurry separation system is configured for collecting sewage slurry from a sewer line, depositing the sewage slurry in a collection/settling chamber to separate the slurry into water and sludge. The water is then pumped back into the sewer line. The system includes a sewage collection tank with a compacting plate. The compacting plate divides the sewage collection tank into a sewage collection chamber and a water collection chamber. The compacting plate has a passage that allows water from the sewage collection chamber to flow into the water collection chamber. The sewage slurry separation system also includes a submersible pump connected to the sewage collection chamber. The submersible pump pumps sewage slurry into the sewage collection chamber.
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International Search Report, issued Sep. 25, 2007 re International Application No. PCT/US06/29295.
Fulbright & Jaworski LLP
Upton Christopher
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