A cap for a fluid sensor is provided. The cap comprises a cap input port including a first toolless connector configured to removably couple to a cable; and a cap output port including a second toolless connector configured to removably couple to a cable. The cap may further comprise an interface circuit including a circuit input port, a circuit output port, and a sensor port configured to couple to the fluid sensor. The first toolless connector may be configured to removably couple the circuit input port to a cable and the second toolless connector may be configured to removably couple the circuit output port to a cable. The circuit will automatically sequence the signals on the cable, so standard one-to-one wired cables can be used.

A waste oil transfer system includes a system controller configured to determine the authorization status of a waste oil transfer request. The system controller requests a current fluid level in a storage tank from a tank level monitor mounted on the storage tank. The tank level monitor is configured to generate current fluid level information and provide that information to the system controller. The system controller determines the available space in the storage tank and compares the available space to the transfer volume to determine if the storage tank can receive the transfer volume. The system controller then activates a pump to initiate the transfer if the system controller determines that the transfer is authorized or denies the transfer.

A system comprising a plurality of ports is capable of automated, remote detection of conditions indicating that refill is required in one of a plurality of remote tanks and causing refill of the tank via at least one of the plurality of ports. Further, the system includes automated monitoring and supply of a fuel tank.

A method for controlling a filling operation of a vehicular liquid storage system including a tank including a fill level limiting valve. The method includes: detecting start of a first filling event; measuring a first fill level of the tank; verifying whether the measured first fill level has reached a predetermined fill level; if the verifying is positive, starting a first timer for a first amount of time; upon expiry of the first timer, closing the fill level limiting valve.

The present invention affords a method and apparatus for autonomous fueling/refueling of numerous machinery operating at work sites such as an active fracking site. The system of the present invention includes a main fuel tank mounted on a frame and a plurality of fuel intake lines individually coupled to the main fuel tank. Pumps are connected to at least some, but not necessarily all, of the fuel intake lines. The pumps are coupled to hoses extending from the main fuel tank to the saddle tanks requiring fueling/refueling. The present invention further includes a refueling cap that is detachably connected to the hoses and configured to mate with the saddle tanks. This cap includes a pressure valve configured to open only in the presence of sufficient pressure input pressure from the hose, which prevents siphoning of fuel out of the saddle tank, for example if a hose becomes ruptured somewhere along its length. The refueling cap further includes a vent coupled to a fluid flow sensing valve and an electrical pass-through for a pressure sensor. The pressure sensor is coupled to the refueling cap and intended to be disposed within a saddle tank to provide a signal indicative of the fuel level within the saddle tank. The pressure sensor is further electrically connected to a wireless transmitter. The wireless transmitter provides signals to a controller for the pumps. In one methodology of the present invention fueling/refueling of individual saddle tanks is initiated when a first signal is received from the wireless transmitter indicative of the saddle tank having been depleted to a first predetermined level and fueling/refueling is terminated when a another signal is received from the wireless transmitter indicative of the saddle tank having been filled to a second predetermined level or if a signal is received from the wireless transmitter indicative of the fluid flow sensor detecting fluid flow through the vent. In further accordance with the methodology of the present invention the controller records the duration of individual saddle tank fueling/refueling and the interval between fueling/refueling of the individual saddle tanks. A first alarm is generated by the controller if the duration of individual saddle tank fueling/refueling is longer than an average of fueling/refuelings for that individual saddle tank. A second alarm is generated by the controller if the interval between fueling/refueling for an individual saddle tank is longer than an average of the interval between fueling/refueling for that individual saddle tank.

An agricultural sprayer includes a purge tank and first and second nozzles. Furthermore, the system includes a first valve fluidly configured to selectively permit air to flow to the first nozzle and a second valve fluidly configured to selectively permit the air to flow to the second nozzle. A computing system is configured to receive an input indicative of initiation of a purging operation and, upon receipt of the input, control an operation of a main valve to allow the air to flow through a main fluid conduit. Furthermore, the computing system is configured to monitor the air pressure associated with the purge tank and control the operation of the first and second valves during the purging operation based on the monitored air pressure.

A mobile fluid transfer system. The system includes a fluid evacuation system, a fluid refill system, a sensing system and a control system. The fluid evacuation system comprises a first fluid storage container. The fluid refill system comprises a second fluid storage container. The sensing system is coupled to the fluid evacuation system and the fluid refill system. The control system is coupled to the sensing system, the fluid evacuation system and the fluid refill system. The control system is configured to determine an amount of a first fluid in the first fluid storage container based on a first signal from the sensing system, and determine an amount of a second fluid in the second fluid storage container based on a second signal from the sensing system.

A cleaning system for an agricultural sprayer may include a sprayer boom, a plurality of nozzle assemblies provided in association with the sprayer boom and configured to dispense an agricultural product during a spraying operation of the agricultural sprayer, a first cleaning fluid tank configured to hold a first cleaning fluid, and a nozzle assembly fluid circuit fluidly coupling the plurality of nozzle assemblies and the first cleaning fluid tank. Moreover, the cleaning system may include a cleaning station supported on the sprayer boom, the cleaning station comprising a first valve. Additionally, the cleaning system may include a first cleaning fluid circuit fluidly coupling the first valve and the first cleaning fluid tank. The first valve is configured to supply the first cleaning fluid therethrough when the first valve is in an open position.

A system includes a plurality of mobile fuel distribution stations. Each mobile fuel distribution station includes a mobile trailer, a pump, a manifold, a plurality of hoses, a plurality of fuel caps connected or connectable with the hoses and attachable on fuel tanks of pieces of equipment, a plurality of valves, and a plurality of fuel level sensors operable to generate signals indicative of fuel levels in the fuel tanks. The mobile fuel distribution station is configured to operate the pump responsive to a low fuel threshold to provide fuel to the manifold, from the manifold to the valves, and from the valves through the hoses. A server is operable to communicate with the mobile fuel distribution stations. An electronic device is operable to communicate with the server and display the fuel levels in real-time.

An example fluid container with multiple sections to receive a fluid as well as vapor displaced by addition of the fluid is disclosed. In some examples, a controllable vent selectively connects one or more vapor volumes to balance pressure in the system.