Isolation and positive shut-off system for a fuel dispensing fac

Details Isolation and positive shut-off system for a fuel dispensing fac Isolation and positive shut-off system for a fuel dispensing fac

1996-01-11

1999-02-23

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

307118, 307139, 222 23, 222 25, H02J 100, B67D 500

Patent

active

058747877

ABSTRACT:
An isolation and positive shut-off system for a fuel dispensing facility having a plurality of dispensers and at least one fuel storage tank in electrical communication with one or more of the dispensers is provided comprising a power source for supplying a power signal to the dispensers and fuel storage tanks, a plurality of relays connected between the dispensers and the storage tanks and power source for selectively interrupting the electrical communications and power signals to each of the dispensers, a control signal for the relays, and a plurality of switches for independently and selectively controlling transmission of the control signal to the relays in order to trigger the relays to separately interrupt transmission of the power signal and electrical communications to each of the dispensers.

REFERENCES:
patent: 5372032 (1994-12-01), Filippi et al.
patent: 5375454 (1994-12-01), Andrejasich et al.
patent: 5630528 (1997-05-01), Nanaji

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