Hydrostatic relief valve

Details Hydrostatic relief valve Hydrostatic relief valve

1989-11-01

1991-08-06

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

F16K 1712

Patent

active

050368818

ABSTRACT:
A system for relieving excess ground water pressure surrounding a swimming pool is disclosed. A one-way flow valve is inserted in the pool enclosure so as to complete a passageway connecting its opposite sides. The valve comprises an elongated plunger slidingly engaged within a sleeve forming a portion of the passageway. The plunger has a tapered conical seating surface radially diagonal to its long axis. The sleeve contains a compatible conical surface such that when the two surfaces meet by sliding engagement of the plunger, the flow of water through the passageway into the pool is closed.

REFERENCES:
patent: 1539617 (1925-05-01), Williston
patent: 1825443 (1931-09-01), Chormann
patent: 4276163 (1981-06-01), Gordon
patent: 4860995 (1989-08-01), Rogers

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