Vacuum sewerage system with in pit breather

Details Vacuum sewerage system with in pit breather Vacuum sewerage system with in pit breather

1985-06-12

1987-09-08

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Main line flow displaces additive from shunt reservoir

1372361, E03F 100

Patent

active

046917314

ABSTRACT:
A vacuum sewerage transport system having a vacuum interface valve apparatus utilizing s sub-surface in-pit breathing, drainage and venting apparatus for a differential pressure controlled sensor-controller unit.

REFERENCES:
patent: 3746032 (1973-07-01), Wallgren
patent: 3777778 (1973-12-01), Janu
patent: 4171853 (1979-10-01), Cleaver
patent: 4179371 (1979-12-01), Foreman
patent: 4373838 (1983-02-01), Foreman

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