Control circuit for multi-product fuel dispenser

Dispensing – With recorder – register – indicator – signal or exhibitor – Plural

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222 52, 361189, 361191, 705413, B67D 500

Patent

active

061586188

ABSTRACT:
A control circuit array for controlling operation of a plurality of multi-product fuel dispensers ("MPDs") in response to control inputs from a control input source. The control circuit array includes an electric power source, switches for fuel grade selection and MPD lighting and outputs to submersible turbine fuel pumps for supplying fuel to the MPDs. The improvement comprises a modular circuit board for being connected in series to form the control circuit array, wherein each circuit board includes emergency shutoff means for responding to a single emergency shutoff input for shutting off all power to each of the plurality of MPDs and the turbine pumps supplying the MPDs. The control also includes maintenance shutoff means for shutting off all power to a single predetermined one of the plurality of MPDs in preparation for performing maintenance on the single MPD or turbine pump while permitting continued operation of the remaining MPDs and turbine pumps without feedback to the MPD under maintenance from the operating MPDs.

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"Open the door to total service security"; R.S. Electronic Controls, Inc.; Entire Advertisement; Published prior to Dec. 17, 1998.
"EDC Electronic Device Controller"; R.S. Electronic Controls, Inc.; Mar., 1998.
Dispenser Manager--MPI; Brown Electrical Controls; W.A. Brown & Son, Inc.; Published prior to Dec. 17, 1998.

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