Leak detection apparatus

Details Leak detection apparatus Leak detection apparatus

1975-04-14

1976-06-29

Reeves, Robert B.

Dispensing

Automatic control

Motor control

73 405R, 318480, 340242, G01M 300, B67D 508

Patent

active

039660885

ABSTRACT:
A leak detection apparatus for a dispensing apparatus having a pump and a pressure-sensing apparatus with an output switch responsive to a predetermined pressure has a pump interrupter circuit with a control input. A pump interrupter control circuit has an input and an output connected to the control input of the pump interrupter circuit. A timing circuit has an output, and an input for initiating a signal at the output for a predetermined period of time. The timing circuit is connected through the pressure-sensing apparatus output to the input of the pump interrupter control circuit such that a leak in the dispensing apparatus will cause closure of the output switch, transferring the signal at the output of the timing circuit during the predetermined period of time to the input of the pump interrupter control circuit causing the pump interrupter circuit to interrupt the operation of the pump.

REFERENCES:
patent: 2952390 (1960-09-01), Fowler et al.
patent: 3273753 (1966-09-01), Johnson et al.
patent: 3577049 (1971-05-01), Madurski et al.
B380,310, Jan. 28, 1975, Padgitt, 318/480.

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