Liquid purification or separation – Structural installation – Grated inlet surface drain
Patent
1980-06-02
1981-02-03
Weakley, Harold W.
Liquid purification or separation
Structural installation
Grated inlet surface drain
13724727, 13724745, 137602, F03F 506
Patent
active
042487110
ABSTRACT:
A drain/trap to be installed in a basement flooring comprises an assembly cast in metal or molded from a corrosion-resistant synthetic resin includes an upwardly open housing of generally tubular outline, a secondary circuit leading through the bottom wall of the housing and having an inboard extremity opening into the housing interior, and a connecting conduit having a bottom inlet and a lateral outlet communicating with the housing and a lid for the housing. The secondary conduit leading from the ground area beneath the flooring allows the percolation of waters therefrom into the housing for mixture with the drainage waters therein. The trap is of generally U shaped configuration and the inlet end of the secondary conduit is disposed at a fluid level higher than that of the main drain conduit.
REFERENCES:
patent: 871836 (1907-11-01), Wade
patent: 1593083 (1926-07-01), Kirchhan
patent: 2938437 (1960-05-01), Daley
patent: 3042210 (1962-07-01), Hattori
patent: 3066802 (1962-12-01), Loffler
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