Abstract: Systems and methods for completely filling a storage vessel with a fuel gas. One method includes flowing the fuel gas along a fluid conduit in fluid communication with the storage vessel and actuating a valve disposed along the fluid conduit to provide a predetermined difference between the pressure of the fuel gas upstream of the valve and the pressure of the fuel gas downstream of the control valve. The predetermined difference is selected such that the temperature of the fuel gas is reduced to a predetermined temperature after passing through the valve. The method further includes dispensing the fuel gas into the storage vessel at a first mass flow rate.

Abstract: A system and method for displaying information at a fuel dispenser comprises an electrophoretic display that may be configured to operate in low temperature environments. The fuel dispenser may comprise a keypad located beneath the electrophoretic display in order to present a graphical user interface to a customer and receive the customer's selections. The fuel dispenser may comprise additional electrophoretic displays to present additional information to the consumer.

Abstract: An assembly for installation in a fuel dispensing environment having a forecourt controller and at least one fuel dispenser communicating via legacy cable. The assembly comprises a sniffer device connectable along the legacy cable such that a first communication side thereof is in electrical communication with the forecourt controller and a second communication side thereof is in electrical communication with the fuel dispenser. The sniffer device is operative to receive an incoming message at either the first communication side or the second communication side. The sniffer device also includes memory and a processor, the processor implementing instructions to interpret the incoming message. Based on an interpretation of the incoming message, the sniffer device is operative to determine an action to be taken regarding the incoming message.

Abstract: A system and method for displaying information at a fuel dispenser comprises an electrophoretic display that may be configured to operate in low temperature environments. The fuel dispenser may comprise a keypad located beneath the electrophoretic display in order to present a graphical user interface to a customer and receive the customer's selections. The fuel dispenser may comprise additional electrophoretic displays to present additional information to the consumer.

Abstract: Methods and systems for monitoring the health and operational status of components in a fuel dispensing environment. In one aspect, a method includes providing a control system having a memory in which is stored information representative of a first vibration characteristic of a component, providing a sensor in electronic communication with the control system, the sensor operative to sense vibration characteristics of the component, and coupling the sensor with the component. The method also includes sensing a second vibration characteristic of the component using the sensor, transmitting information representative of the second vibration characteristic to the control system, and comparing the information representative of the second vibration characteristic to the information representative of the first vibration characteristic.

Abstract: Systems and methods for watermarking content and authenticating watermarked content are provided. Content is rendered on a display while watermarking information embedded in portions of the content are obtained. The watermarking information is verified to authenticate the content. If the content is not authentic, or is not authenticated within a period of time, the content can be terminated or otherwise blocked from rendering on the display.

Abstract: A meter for measuring the flow rate of fuel in a fuel dispenser comprises a housing with an axial bore extending therethrough and defining an inlet and an outlet. A flow indicating mechanism comprising one or more rotatable components are mounted in the axial bore of the housing and configured to rotate as fuel flows from the inlet to the outlet, wherein each rotation indicates fuel flow. A pulse generating device senses rotation of the rotatable components and generates an output signal indicative of the fuel flow. Finally, a vapor generating device is configured to generate vapor bubbles that flow through the flow indicating mechanism.

Abstract: A method of delivering a selected fuel product having a selected octane level to an operator from a fuel dispenser including a blend manifold, a fuel nozzle, and a fuel hose extending therebetween, including the steps of determining a first volume of a first fuel that is retained in the fuel hose upon completion of a first fueling event, determining a first octane level of the first volume of the first fuel, determining a second volume of a second fuel having a second octane level, and delivering the first fuel volume and the second fuel volume to the operator during a second fueling event, wherein a total volume of fuel equaling the first volume of the first fuel and the second volume of the second fuel has a total octane level that falls within a predetermined limit of the selected octane level of the selected fuel product.

Abstract: A method and apparatus for improving the accuracy of fuel flow meters by compensating for the presence of vapor bubbles generated within the flow meter. The method comprises measuring the temperature of the fuel flowing through the meter and using an algorithm or static lookup table to determine a vapor compensation factor based on that temperature. Because the tendency of fuel to vaporize depends largely on seasonal variations in fuel temperature, applying a temperature-dependent vapor compensation factor promotes year-round accuracy of the flow meter output.

Abstract: A vending machine can include a touch display and a touch controller operatively connected to the touch display and configured to transmit display data to the touch display and receive input data from a touchscreen function of the touch display. The vending machine also includes a secure device operatively connected to the touch display for securing the display by managing touch input information provided to one or more applications based on the input data received from the touchscreen functionality. The vending machine has a processor operatively connected to the secure device for communicating access requests for the touch display to the secure device from the one or more applications along with an indication of whether the one or more applications are signed by an authorized entity. The secure device manages the touch input information provided to the one or more applications further based at least in part on the indication.

Abstract: A fuel flow meter assembly for detecting fraud caused by tampering. The fuel flow meter assembly comprises a fuel flow meter comprising a shaft and a fiber optic displacement sensor operatively connected to the fuel flow meter shaft for generating information representative of an amount of fuel delivered through the fuel flow meter. The fuel flow meter assembly also comprises at least one transponder coupled with one of the fuel flow meter shaft and the displacement sensor. Further, the fuel flow meter assembly comprises at least one interrogator electronics coupled with the other of the fuel flow meter shaft and the displacement sensor. The at least one interrogator electronics is configured for remote electronic communication with the at least one transponder.

Abstract: Various systems and methods are provided for facilitating powered communications over legacy cabling. This can be implemented in a fuel dispensing environment where the fuel dispenser can include a diode coupler communicatively coupled to the legacy cabling for receiving powered communications from one or more backroom components over the legacy cabling during a power outage, and a broadband communications modem for communicating with the one or more backroom components, wherein the diode coupler provides power from the powered communications to the broadband communications modem. Relays can be used at the fuel dispenser and/or backroom components to determine whether to use the powered communications or legacy communications based on whether power is available at the components communicating over the legacy cabling. In addition, failsafe protection of legacy communication circuits is provided when powered communications are active.

Abstract: A fueling environment communication system for providing high bandwidth information via existing field wiring to a plurality of forecourt devices. The communication system according to this aspect comprises a back room communication module having a first plurality of Ethernet ports for connection to external devices using Ethernet communication and a second plurality of Ethernet ports. The back room communication module further comprises a plurality of modulation interface devices each connected on a first side to a respective one of the second plurality of Ethernet ports. A summing and isolation module having a high pass filter is connected to each of the modulation interface devices on a second side thereof to pass a modulated high frequency signal. The summing and isolation module further has a low pass filter through which low frequency legacy data can be passed and combined with said modulated high frequency signal.

Abstract: A method of completing a transaction at a point-of-sale terminal using payment information contained on a wireless unit of a customer. The method comprises providing a point-of-sale terminal capable of wirelessly connecting with a wireless unit of a customer desiring to complete a transaction. The point-of-sale terminal is used to perform at least one of reading a barcode displayed on the wireless unit containing short range network pairing information, or displaying a barcode containing short range network pairing information for reading by the wireless unit, to thereby establish a short range wireless network between the point-of-sale terminal and the wireless unit of the customer. Via the short range wireless network, transaction data is received from the wireless unit of the customer containing payment information. The transaction data is then used to effect payment for the transaction and thereby complete the transaction.

Abstract: An apparatus for dispensing liquid fuel comprises a plurality of inlet valves, each connected in-line with a respective inlet pipe in fluid communication with a respective source of a specific liquid fuel. A plurality of outlet valves are also provided, each connected in-line with a respective outlet pipe. A respective fuel hose is in fluid communication with each of the outlet pipes. The apparatus further comprises a Coriolis mass flow meter located between the inlet valves and outlet valves, the Coriolis mass flow meter providing a flow signal indicative of flow therethrough. A controller is operative to receive the flow signal and control the valves such that selected inputs of specific liquid fuels are dispensed to at least one of the fuel hoses. In accordance with an exemplary embodiment, the selected inputs of specific liquid fuels may include individual liquid fuels and blended combinations thereof.

Abstract: A fluid dispenser has a housing in which fluid flow control components are located and at least one fluid conduit completing first and second fluid flow paths between the at least one fluid storage tank and a nozzle coupled to the housing. The fluid dispenser also has a fluid flow meter located along said fluid flow path, a control system, and a recirculation subsystem. The recirculation subsystem has a bypass valve located along one of the first and second flow paths. The bypass valve is operative to prevent fluid communication between the first and second fluid flow paths when the fluid dispenser is in use and to allow fluid communication between the first and second fluid flow paths when the fluid dispenser is not in use. Methods of measuring the flow rate of a fluid in the fluid dispenser are also disclosed.

Abstract: A payment processing system and method comprising a POS module providing an interface to effect sales of FGS in a retail environment, a device module operatively connected to at least one retail device configured to supply FGS and comprising a card reader adapted to receive a first payment card data for payment for the FGS, wherein the device module is adapted to control operation of the at least one retail device, and a payment system module operatively connected to the POS module and the device module, the payment system module adapted to validate payment for the FGS. The payment system module and the device module are separated from the POS module in order to segment a portion of the payment processing system configured to handle payment card data from a portion of the system that does not handle payment card data.

Abstract: A system and method of measuring volumetric flow through a meter. One step of the method involves providing a flow meter connected to a duct having fluid flowing therethrough. A memory having at least two Roshko/Strouhal curves stored therein is also provided. A viscosity of the fluid is measured. One of the Roshko/Strouhal is selected curves based on the method viscosity. A volumetric flow through the meter is determined utilizing the selected Roshko/Strouhal curve.

Abstract: A method of conducting a fueling transaction at a fuel dispenser. The fuel dispenser includes a flow meter operatively connected to internal fuel flow piping. The method comprises the step of providing a displacement sensor for generating information representative of an amount of fuel delivered through the flow meter. The displacement sensor comprises at least one transponder operatively connected to the flow meter. The method also comprises providing at least one interrogator electronics configured for remote electronic communication with the at least one transponder and authorizing the fueling transaction. Finally, the method comprises communicating with the at least one transponder using the at least one interrogator electronics during the fueling transaction. Fuel dispensers and flow meter assemblies comprising displacement sensors having transponders and/or capacitive sensing elements are also disclosed.

Abstract: A vending machine can include a touch display and a touch controller operatively connected to the touch display and configured to transmit display data to the touch display and receive input data from a touchscreen function of the touch display. The vending machine also includes a secure device operatively connected to the touch display for securing the display by managing touch input information provided to one or more applications based on the input data received from the touchscreen functionality. The vending machine has a processor operatively connected to the secure device for communicating access requests for the touch display to the secure device from the one or more applications along with an indication of whether the one or more applications are signed by an authorized entity. The secure device manages the touch input information provided to the one or more applications further based at least in part on the indication.