Leak detection system and method

Details Leak detection system and method Leak detection system and method

1973-08-23

1976-02-24

Hoffman, Drayton E.

Dispensing

Automatic control

73 405R, B67D 514, G01M 308

Patent

active

039400204

ABSTRACT:
A leak detection system and method of detecting leaks are disclosed for detecting leaks in a dispensing system having a pump, dispenser, conduit connecting the pump and dispenser and a valve to isolate the pump from the dispenser when a fluid is not being dispensed. The leak detection system includes a leak detector including an enclosure in fluid flow communication with the portion of the conduit downstream from the valve, a member responsive to the fluid condition within the enclosure and signal means responsive to the fluid condition responsive member for indicating the existence of a predetermined fluid condition.
A valve seating means which is pressure activated to forceably seat the valve also is provided.
A leak detecting method is disclosed which includes the steps of activating the pump, opening the dispenser and dispensing a fluid, closing the dispenser, closing the valve to isolate the pump from the dispenser, sensing a flow of fluid in the conduit portion between the valve and dispenser, and energizing signal means if the fluid flow is greater than a predetermined amount.

REFERENCES:
patent: 2952389 (1960-09-01), Fowler et al.
patent: 3183723 (1965-05-01), Deters
patent: 3273753 (1966-09-01), Johnson et al.
patent: 3454195 (1969-08-01), Deters

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