Tank vent valve

Details Tank vent valve Tank vent valve

1984-07-16

1986-02-18

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

With second control

137 43, 137493, F16K 17196, F16K 1736

Patent

active

045706573

ABSTRACT:
A vent for a closed tank, such as a fuel tank, wherein the vent utilizes a normally closed valve, the valve being shiftable to egress and ingress venting positions by the flow of gas and air therethrough, the valve including spring counterbalanced support structure and gravity operated lock means preventing fluid loss through the vent upon the tank being tilted or overturned.

REFERENCES:
patent: 1087890 (1914-02-01), Rogers
patent: 1703813 (1929-02-01), Carson, Jr.
patent: 1798536 (1931-03-01), Hoffman
patent: 2133200 (1938-10-01), Kenneweg
patent: 2653793 (1953-09-01), St. Clair
patent: 2763460 (1956-09-01), Epler
patent: 3006149 (1961-10-01), Reed

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