Patent ID: 6499501
Filing Date: 2002-12-31
Classification: E03C,Y10T

Abstract:
In a system for handling closely proximate flows of relatively clean and unclean water, the combination comprisinga) a first conduit for passing relatively clean water to a first discharge, b) a second conduit extending protectively about the first conduit, c) a third conduit extending proximate and lengthwise of the second conduit for passing said relatively unclean water, outside the second conduit, d) and an outer housing extending about said first, second and third conduits, e) said third conduit having a free discharge proximate to, but isolated from the interior of said second conduit, f) there being a fourth conduit, proximate to said second and third conduits, and having an entrance to receive contaminated water discharge from the third conduit, g) said second, third and fourth conduits configured such that i) said second and said third conduits have a primary common wall ii) said second and fourth conduits have a secondary common wall iii) said third and fourth conduits have a tertiary common wall, h) said primary, secondary and tertiary common walls having a common junction, i) and wherein said common walls extend arcuately away from said common junction, such that both said secondary common wall and said tertiary common wall bulge toward and into said fourth conduit.