Measuring and testing – With fluid pressure – Leakage
Patent
1989-09-07
1991-10-08
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
73 491, 73 40, 141 59, B65B 3104
Patent
active
050543121
ABSTRACT:
An air pocket removal device is provided for the removal of residual air trapped in an underground fuel storage tank so that an accurate measurement can be made of the tank tightness and hence detect the presence of any leaks. The device is comprised of a guide column which can be fitted through the tank fuel inlet opening and which has an extendable hose fitted with a float which locates air pockets anywhere on the inner top surface of the tank. Any air present in the fuel storage can be withdrawn through the hose to the exterior.
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Niaki et al.; Underground Tank Leak Detection Methods: A State of the Art; Hazardous waste Engineering Research Lab; Jan. 1986.
Miller Craig
Williams Hezron E.
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