Abstract: A system and method of detecting fuel theft at a fuel dispenser. The system has a fluid flow meter, a pulser operatively coupled to said fluid flow meter, and a control system in electrical communication with the pulser. The control system is configured to calculate a flow rate of fuel being dispensed from a gasoline dispenser during a single dispensing transaction. The flow rate is sampled at predetermined time intervals during the single dispensing transaction. The system then compares the sampled flow rates to a predetermined flow rate pattern indicative of potential fraud. A shutoff signal is then provided to the dispenser to stop fuel flow through the dispenser if the sampled flow rates are substantially similar to the predetermined pattern.

Abstract: A method of determining whether a measured fuel delivery rate determined by a fuel meter of a fuel dispenser corresponds to an actual fuel delivery rate at which fuel is being dispensed to a vehicle through a fuel flow path. The method includes measuring a fuel delivery rate at a given time during a fueling operation, measuring a fuel pressure of the fuel within the fuel flow path at the given time, comparing the measured fuel pressure to a plurality of fuel pressure values from a data set including a plurality of actual fuel delivery rate values that correspond to the plurality of fuel pressure values, retrieving one of the plurality of actual fuel delivery rate values from the data set that corresponds to the measured fuel pressure value; and comparing the measured fuel delivery rate from the fuel meter to the one actual fuel delivery rate value to determine if the measured fuel delivery rate corresponds to the actual fuel delivery rate at which fuel is being dispensed to the vehicle.

Abstract: A system and method of detecting fuel theft at a fuel dispenser. The system has a fluid flow meter, a pulser operatively coupled to said fluid flow meter, and a control system in electrical communication with the pulser. The control system is configured to calculate a flow rate of fuel being dispensed from a gasoline dispenser during a single dispensing transaction. The flow rate is sampled at predetermined time intervals during the single dispensing transaction. The system then compares the sampled flow rates to a predetermined flow rate pattern indicative of potential fraud. A shutoff signal is then provided to the dispenser to stop fuel flow through the dispenser if the sampled flow rates are substantially similar to the predetermined pattern.

Abstract: A method of determining whether a measured fuel delivery rate determined by a fuel meter of a fuel dispenser corresponds to an actual fuel delivery rate at which fuel is being dispensed to a vehicle through a fuel flow path. The method includes measuring a fuel delivery rate at a given time during a fueling operation, measuring a fuel pressure of the fuel within the fuel flow path at the given time, comparing the measured fuel pressure to a plurality of fuel pressure values from a data set including a plurality of actual fuel delivery rate values that correspond to the plurality of fuel pressure values, retrieving one of the plurality of actual fuel delivery rate values from the data set that corresponds to the measured fuel pressure value; and comparing the measured fuel delivery rate from the fuel meter to the one actual fuel delivery rate value to determine if the measured fuel delivery rate corresponds to the actual fuel delivery rate at which fuel is being dispensed to the vehicle.

Abstract: A fueling environment's safety is improved by adding static charge sensors to the fuel dispenser and its peripherals. The static charge sensors detect static charge proximate the fuel dispenser and provide an indication of the static charge to a threshold detector. If the static charge is above a predetermined threshold, one or more safety devices may be activated to disperse or reduce the amount of hydrocarbon vapors proximate the fuel dispenser. Reduction in the amount of hydrocarbon vapors proximate the fuel dispenser helps reduce the risk of harm from the static charge.

Abstract: Apparatus to detect tampering with a totalizing device on a fuel dispenser with a totalizing device acting to keep a running total of fuel dispensed from the fuel dispenser and including an electric circuit containing at least one coil that will emit a magnetic pulse responsive to a condition consistent with proper totalizer operation, the apparatus including an arrangement for sensing the presence of the magnetic pulse and generating a signal responsive thereto and an arrangement for causing an alarm responsive to absence of the magnetic pulse.

Abstract: A gas plasma display panel heater device for use with a gas plasma panel display, and methods for using and mounting the same. The gas plasma display panel has a display viewing area, external connection and heather. The gas plasma display heater device includes a thermally conductive layer, preferably a foil or coating, arranged and configured to substantially envelop the gas plasma display panel while not covering the display viewing area. The gas plasma display heater device is operative to conduct heat generated by the heater to other portions of the gas plasma display panel. The plasma display heater further includes a supplemental heater device. The supplemental heater device includes a heating element which is formed from an electrically resistive material such that, when a current is passed through the heating element, the same will generate heat. The supplemental heater also has electrical leads electrically connected with the heating element.

Abstract: A shaft encoder for deriving a number of pulses indicative of the extent of rotary shaft motion including a disc having plural relatively narrow opaque regions spaced from each other by relatively wide transparent regions. Light from a pair of sources is directed through the regions toward a pair of light detectors. The detectors and regions are such that under normal operation light from the sources is incident on at least one of the detectors. The wide regions have an extent sufficiently great to prevent them from being clogged by dirt and other debris. In response to neither of the detectors having light incident on them, an indication of a failure of the shaft encoder is provided and operation of an accumulator responsive to the number of light transitions incident on the detectors is prevented. Thereby, a fail-safe apparatus is provided in the event of a failure of any of the light sources, the detectors and circuitry responsive thereto.