Self-contained, automatic primer valve for sewer line drain trap

Details Self-contained, automatic primer valve for sewer line drain trap Self-contained, automatic primer valve for sewer line drain trap

1978-11-29

1980-05-27

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137204, 13724725, F16K 900, F16L 4300

Patent

active

042045568

ABSTRACT:
A primer valve for sewer line drain traps comprises a case having an upper water inlet communicating with the pressurized house line and a lower water outlet communicating with the trap. The hollow interior of the case is divided into a lower valved dispensing chamber which dispenses water into the trap; an intermediate supply chamber which supplies water to the primer valve system, and an upper trapped-air chamber. The latter actuates the valve in the dispensing chamber and dispenses water to the trap each time the pressure in the house line drops.

REFERENCES:
patent: 2571420 (1951-10-01), Churchman
patent: 3333597 (1967-08-01), Sullivan
patent: 3516430 (1970-06-01), Valentine

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