A system determines that a fuel dispensing operation may be anomalous. In response, the system accesses fuel inventory data that indicates fuel levels in a fuel tank during a time period. The system determines a measure amount of fuel that left the fuel tank based on the fuel inventory data. The system determines a calculated amount of dispensed fuel associated with one or more fuel dispensing operations during the time period. The system compares the measured amount of fuel that left the fuel tank with the calculated amount of dispensed fuel. The system determines that the measured amount of fuel that left the fuel tank is more than the calculated amount of dispensed fuel. In response, the system concludes that at least one of the fuel dispensing operations is anomalous and causes the fuel dispensing terminal to stop dispensing fuel.

A system detects a fuel dispensing operation that indicates fuel is being dispensed from the fuel dispensing terminal. The system determines an identifier value associated with a volume of fuel dispensed from the fuel dispensing terminal. The system determines a measured volume per unit time parameter associated with the fuel dispensed from the fuel dispensing terminal by dividing the determined identifier value by a unit parameter. The system compares the measured volume per unit time parameter with a threshold volume per unit time parameter. In response to determining that the measured volume per unit time parameter is less than the threshold volume per unit time parameter, the system instructs the fuel dispensing terminal to stop dispensing fuel.

A fuel dispensing terminal comprises a memory and a processor. The memory is configured to store fuel inventory data that indicates levels of fuel in a fuel tank during a time period. The processor is operably coupled to the memory and configured to determine an actual amount of fuel that left the fuel tank based at least in part upon the fuel inventory data, determine a calculated amount of dispensed fuel associated with one or more fuel dispensing operations during the time period, and compare the actual amount of fuel that left the fuel tank with the calculated amount of dispensed fuel. The processor is further configured to determine that the actual amount of fuel that left the fuel tank is more than the calculated amount of dispensed fuel, conclude that at least one fuel dispensing operation is anomalous, and cause the fuel dispensing terminal to stop dispensing fuel.

A fuel dispensing terminal includes a memory that stores a threshold volume per unit time and a threshold wait period, and a processor operably coupled to the memory. During fuel dispensing, the processor periodically determines the cost-based volume of fuel dispensed and calculates a measured volume per unit time by dividing this value by the fuel cost per unit volume. The processor compares this measured rate to the stored threshold. If the measured volume per unit time falls below the threshold within the specified wait period, the terminal automatically stops dispensing fuel.

A breakaway valve for a cryogenic fluid tank includes a tank-side valve and a nozzle-side valve. The tank-side valve is connected to and forms a first vacuum-insulation layer with a first jacketed hose. The first jacket support includes first bellows configured to reduce heat transfer with the first vacuum-insulation layer and one or more first bellow supports that include first teeth inserted between and engaging the first bellows to provide structural support to the first bellows. The nozzle-side valve is connected to and forms a second vacuum-insulation layer with a second jacketed hose. The second jacket support includes second bellows configured to reduce heat transfer with the second vacuum-insulation layer and one or more second bellow supports that include second teeth inserted between and engaging the second bellows to provide structural support to the second bellows.

An apparatus, including a monitor system which includes a microphone, a first power supply, and a transmitter which transmits a first audible sound, indicative of a normal flow of fluid into a tank, or transmits a second audible sound, indicative of a need to cease a flow of the fluid into the tank; an attachment device to which the monitor system or the microphone is attached and which is attached to a ventilation pipe or an object in a vicinity of the ventilation pipe; and a receiver system which includes a receiver, which receives the first audible sound or the second audible sound, a second power supply, and a speaker which provides a first audio output, indicative of the first audible sound, or a second audio output indicative of the second audible sound. The speaker outputs the first audio output or outputs the second audio output.

A fluid delivery apparatus includes a mobile distribution station, at least one manifold on the mobile distribution station, a pump configured to deliver fluid to the at least one manifold, a plurality of reels fluidly connected with the at least one manifold, a plurality of hoses, a plurality of valves, and a plurality of fluid level sensors. Each hose is fluidly connected with a different one of the reels. Each valve is situated between the at least one manifold and a respective different one of the reels, and each fluid level sensor is paired with a different one of the hoses. A controller is configured to individually open and close the valves responsive to the fluid level sensors.