Method for autonomously fueling machinery operating at fracking sites. A fuel tank with a plurality of fuel lines individually coupled to a fuel tank are used. Pumps are connected to some of the fuel lines. Pump outputs are coupled to hoses extending to machinery tanks to be refueled. A cap is detachably connected to the hoses and machinery tanks to be fueled. The fuel tank includes an intake filter capable of blocking approximately 10 micron contaminants with about 250 gallon per minute flow rate. The methodology of the present invention includes measuring the duration of machinery tank fuelings and the interval between fuelings. A first alarm is generated if the duration of fuelings is longer than a first interval. A second alarm is generated if the interval between fuelings is longer than a second interval.

A fluid dispensing system. The fluid dispensing system includes a portable source container, a fluid dispensing nozzle, a pump system, a fluid conduit, and a power connector. The pump system includes at least one pumping portion for pumping fluid through a first fluid passage, an electric motor for powering the first pumping portion and a power receptacle for receiving power to the electric motor. The pump system is coupled the source container or the fluid dispensing nozzle. The power connector includes at least one retaining clip biased to a retaining configuration, the first retaining clip in the retaining configuration being configured to enable the power connector to be retained in the power receptacle.

An oil drum adapter kit may be used for connection to an oil drum containing oil. The oil drum adapter kit may include an adapter body. A fill tube may be connected to the adapter body to allow the oil drum to be filled with the oil. A drain tube may be connected to the adapter body to allow the oil to be removed from the oil drum. A level sensor may be disposed on the drain tube. The level sensor may be configured to sense a level of the oil contained in the oil drum.

Method for autonomously fueling machinery operating at fracking sites. A fuel tank with a plurality of fuel lines individually coupled to a fuel tank are used. Pumps are connected to some of the fuel lines. Pump outputs are coupled to hoses extending to machinery tanks to be refueled. A cap is detachably connected to the hoses and machinery tanks to be fueled. The fuel tank includes an intake filter capable of blocking approximately 10 micron contaminants with about 250 gallon per minute flow rate. The methodology of the present invention includes measuring the duration of machinery tank fuelings and the interval between fuelings. A first alarm is generated if the duration of fuelings is longer than a first interval. A second alarm is generated if the interval between fuelings is longer than a second interval.

An example fuel cap assembly includes a fuel cap, a sensor element extending from the fuel cap, and a fuel tube extending from the fuel cap next to the sensor element. The fuel tube includes an outlet end having at least one side-diverting fuel outlet that extends through a sidewall of the fuel tube. A fuel cap assembly kit and method of filling a fuel tank are also disclosed.

Method for autonomously fueling machinery operating at fracking sites. A fuel tank with a plurality of fuel lines individually coupled to a fuel tank are used. Pumps are connected to some of the fuel lines. Pump outputs are coupled to hoses extending to machinery tanks to be refueled. A cap is detachably connected to the hoses and machinery tanks to be fueled. The fuel tank includes an intake filter capable of blocking approximately 10 micron contaminants with about 250 gallon per minute flow rate. The methodology of the present invention includes measuring the duration of machinery tank fuelings and the interval between fuelings. A first alarm is generated if the duration of fuelings is longer than a first interval. A second alarm is generated if the interval between fuelings is longer than a second interval.

An example fuel cap assembly includes a fuel cap, a sensor element extending from the fuel cap, and a fuel tube extending from the fuel cap next to the sensor element. The fuel tube includes an outlet end having at least one side-diverting fuel outlet that extends through a sidewall of the fuel tube. A fuel cap assembly kit and method of filling a fuel tank are also disclosed.

An automatic detection system is provided for detecting disruptions in the flow of liquid from a liquid container or containers to a dispensing apparatus. Two embodiments of the system are disclosed. In the first embodiment, a single liquid container is utilized. In the second embodiment, two liquid containers are utilized. In both embodiments, an optical sensor is employed to detect a disruption in the flow of liquid from the liquid containers to the dispensing apparatus.

An automatic detection system for detecting disruptions in the flow of liquid from one more liquid containers to a dispensing apparatus. If the system detects an interruption of the flow of liquid to the dispensing apparatus, a visual alarm, an audio alarm, or a data alarm is activated. Three embodiments of the system are disclosed.

An automatic detection system is provided for detecting disruptions in the flow of liquid from a liquid container or containers to a dispensing apparatus. Two embodiments of the system are disclosed. In the first embodiment, a single liquid container is utilized. In the second embodiment, two liquid containers are utilized. In both embodiments, an optical sensor is employed to detect a disruption in the flow of liquid from the liquid containers to the dispensing apparatus.