Fluid delivery control and registration system

Abstract

A fuel delivery control and registration system having a bank of four BCD price switches for establishing a unit volume price within a four place price range; a BCD memory for accumulating BCD cost and volume amounts of the fluid dispensed; a binary adder summation circuit operated by a decimal volume pulse provided for each one-hundredth increment or one-thousandth increment of a unit volume, depending on the established unit volume price, for indexing the BCD volume amount stored in the memory one count and for indexing the BCD cost amount stored in the memory by the decimal price of the decimal volume pulse increment; and cost and volume indicators with incandescent 7-segment numeral displays for registering the cost and volume amounts stored in the BCD memory. An operator's control circuit provides for remotely manually authorizing a fluid delivery, for remotely temporarily discontinuing a delivery and recontinuing the delivery from the existing accumulated volume and cost amounts stored in the memory, and for remotely presetting a whole number volume or cost amount of fuel to be delivered and timely operating a two-stage fuel shut-off valve by means of serial comparison of each BCD amount of a preset multiple place BCD cost or volume amount and a corresponding multiple place BCD cost or volume amount stored in the BCD memory.