Relief valves for sanitation systems or the like

Details Relief valves for sanitation systems or the like Relief valves for sanitation systems or the like

1982-02-19

1985-05-21

Schwadron, Martin P.

Fluid handling

Line condition change responsive valves

Direct response valves

137526, 137540, F16K 1514

Patent

active

045180148

ABSTRACT:
A relief valve for sanitation systems, said relief valve incorporating a valve seat 11, 25, within a valve chamber 5, 22, and a freely flexible valve element 12, provided for engagement with the valve seat 11, 25 to prevent inflow of air to the valve chamber 5, 22 through an air inlet 10, 26. Guide means 16, 17 are provided for assisting the valve element 12 into sealing engagement with the valve seat 11.

REFERENCES:
patent: 1681364 (1928-08-01), Richardson
patent: 2725076 (1955-11-01), Hansen et al.
patent: 2803265 (1957-08-01), Coffey
patent: 3403696 (1968-10-01), Pynchon
patent: 3923081 (1975-12-01), Persson
patent: 3973588 (1976-08-01), Holst
patent: 4436107 (1984-03-01), Persson

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