Sewer fluid trap

Details Sewer fluid trap Sewer fluid trap

1982-03-18

1984-02-21

Weakley, Harold W.

Fluid handling

With liquid valves or liquid trap seals

Liquid seal in liquid flow line; flow liquid forms seal

13724735, 13724739, 137363, F16K 900

Patent

active

044323840

ABSTRACT:
A sewer fluid trap is disclosed, consisting of firstly a rigid flat plate permanently secured to a manhole wall surrounding a sewer pipe outlet. This flat plate has a pair of spaced-apart lateral slots. Secondly, an elbow having a lower end submerged in the catch-basin of a manhole and an upper end rigidly secured to a back-plate. The latter is removably inserted into the lateral slots, thereby forming a tight seal between itself and the back-plate. Central holes are formed in both plates and are in registry with the sewer pipe outlet when the trap is installed. A latch locks the two plates together. A ring is fixed to the elbow to lift the same and its back-plate from the manhole without having to descend into the same.

REFERENCES:
patent: 197255 (1877-11-01), Dark
patent: 329404 (1885-10-01), McConnell
patent: 343335 (1886-06-01), O'Brien
patent: 468157 (1892-02-01), Shapley

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