ANTI-OVERFLOW APPARATUS FOR TANK TRUCK

摘要

PROBLEM TO BE SOLVED: To save the troubles of routing or tuning frequency and so on for a cable. ;SOLUTION: The anti-overflow apparatus tank truck includes a sub unit 11 which can be connected via a sub unit connection station 10 with an oil reservoir tank management controller 6 for transferring a signal from a level gage 2 provided on an oil reservoir tank to a point-of-sales(POS) terminal and for transmitting a signal regarding a liquid level in the tank 1 with specified frequency, a bottom valve 22 which opens with air supplied from an air source 34 of a tank truck 20 and closes when the supply of the air stops, and a control means 40 for closing a solenoid valve 33 when the liquid level in the tank 1 reaches the upper limit based on the signal regarding the liquid level to stop supplying air.;COPYRIGHT: (C)2001,JPO