Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1982-07-26
1984-07-10
Nilson, Robert G.
Fluid handling
Destructible or deformable element controlled
Destructible element
137 73, 1374932, 137846, 220201, 220203, F16K 17196, F16K 1738
Patent
active
044587112
ABSTRACT:
A plastic vent valve apparatus for use in connection with storage containers provides for equalization of the internal pressure of the container. Air is admitted into the container in response to a partial vacuum, while fumes or fluid contents of the container are expelled in response to over-pressurization of the container to prevent explosion of the container. Moderate over-pressurization resulting from normal expansion of the contents is relieved by venting of the fumes or liquid contents by means of a valve mechanism. Severe over-pressurization requiring rapid venting is better accommodated by ejection of a thin-walled break-away portion of the upper housing defining a large unobstructed vent aperture. Finally, under severe fire conditions the melting of the plastic valve components may provide a yet larger aperture for maximum venting.
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Alter Irwin C.
Justrite Manufacturing Company
Nilson Robert G.
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