US 4,051,998 A · Digital electronic data system for a fluid dispenser

Abstract

A digital electronic data system for use with a fluid dispenser which includes means for generating an electrical signal in response to each incremental quantity of fluid dispensed, the data system comprising manually setable register means for generating a static electrical signal representative of the unit price of the fluid being dispensed, computing means coupled to the dispenser signal generating means and the static unit price signal generating means for receiving the afore-mentioned signals and generating in response thereto signals representative of the quantity and cost of fluid dispensed. A data transfer means is connected to the computing means for receiving and accumulating static unit price, accumulated volume and price signals and transmitting the same serially through a signal transmitting medium. Data display means are connected to the transmitting medium for receiving the sequentially transmitted signals and generating a display thereof representative of the unit price, accumulated volume, and cost of fluid dispensed.

Claims41

Dependent claims

A data system for use in a fluid dispenser for producing an output signal corresponding in direct proportion to the accumulative cost of the fluid dispensed dependent upon a a variable preset signal representative of a price for each unit volume of fluid actually dispensed, the combination comprising:

a. pulse generator means coupled to said dispenser for generating an enabling pulse for each predetermined fraction of a unit quantity of liquid dispensed;
b. oscillator means operable between an idle condition and an activated condition in response to a disabling pulse and said enabling pulse, respectively, for generating a burst of pulses in response to said enabling pulse;
c. presettable switch means manually movable through a plurality of positions for generating continuously a coded signal of varying weight proportional to the selected price for each unit volume of fluid;
d. registry means connected to said presettable switch means to receive said coded signal and to said oscillator means to receive said burst of pulses for producing said disabling pulse when the number of said oscillator means burst of pulses is equal to said coded signal;
and
e. counting means including dividing means connected to said oscillator means to receive said number of said burst of pulses for dividing said number of pulses by said predetermined fraction of a unit quantity to generate an output signal proportional to the accumulated cost of said increment of fluid dispensed.

3 more elements

A data system for use in a fluid dispenser for dispensing a quantity of fluid, said dispenser including means for generating an electrical signal in response to each incremental quantity of fluid dispensed, the combination comprising:

a. manually settable static register means for generating static unit price signals;
b. computing means coupled to said signal generating means and to said static register means to receive said electrical signals and said static unit price electrical signal for generating an incremental cost signal in response thereto;
c. volume register means and cost register means connected to receive and accumulate said incremental volume and cost signals, respectively, for generating accumulated volume and cost signals, respectively;
d. gated-clock means operative between an idle state and an active state for generating clock pulse signals;
e. sequence control means coupled to said gated-clock means for controling the operation thereof between said active and idle states to generate a predetermined number of said clock pulses at predetermined time intervals;
f. data transfer means including at least one data transfer register and being coupled to said static unit price, volume and cost register means and to said gated-clock means for receiving said clock pulses, said static price signals and said accumulated volume and cost signals, respectively and transmitting said static unit price, accumulated volume, and cost signals through a transmitting medium in a predetermined sequence;
and
g. data display means connected to said data transfer means and to said gated-clock means through said transmitting medium for receiving said unit price, accumulated volume, and cost signals in synchronism with the transmission thereof, and generating a visible display thereof.

5 more elements

Dependencies are inferred from the claim text.

Digital electronic data system for a fluid dispenser

Life of this patent

Digital electronic data system for a fluid dispenser

Life of this patent

Abstract

Claims41