Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1995-04-13
1996-01-23
Walton, George L.
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
73308, 73323, 116204, 116228, 137432, 137558, 141198, 200 84C, 340624, H16K 3700, H16K 3124, H16K 3300
Patent
active
054858666
ABSTRACT:
A valve to monitor the level of fluid in an above ground storage tank while the tank is being filled, cutoff the flow of fluid when the tank is in a full condition, and as long as the filling pressure is on the valve the valve will remain cutoff even if the fluid level in the tank has lowered. A relief valve to drain the fluid remaining in the filling hose after the filling pressure is off. A sight level indicator to visually show that the tank is in a filled condition. A monitoring node to be used with or without the mechanical cutoff valve in a totally controlled application where the filling person is not responsible for shutting off the filling tank truck, with two switches, one to alert that the tank is near a filled condition and the second to alert that the tank is in a filled condition.
REFERENCES:
patent: 2720216 (1955-10-01), Scully
patent: 3570532 (1971-03-01), Lendino
patent: 3688795 (1972-09-01), Taylor
patent: 3719203 (1973-03-01), Wettre
patent: 4483367 (1984-11-01), Ross, Jr. et al.
patent: 5010915 (1991-04-01), Johnson et al.
patent: 5235999 (1993-08-01), Lindquist et al.
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