Abstract: A frac plug includes a body having an outer surface, a first pocket in the outer surface, and a second pocket in the outer surface. In addition, the frac plug includes a first sensor removably disposed in the first pocket. The first sensor is configured to measure and record a plurality of pressures. The frac plug also includes a second sensor removably disposed in the second pocket. The second sensor is configured to measure and record a plurality of pressures. Further, the frac plug includes a first cap releasably coupled to the body and closing the first pocket. Moreover, the frac plug includes a second cap releasably coupled to the body and closing the second pocket. The first cap includes a port and the second cap includes a port.

Abstract: An unmanned aerial vehicle is configured to fly along a flight path and collect a substance at a specified geographic location. For example, the unmanned aerial vehicle may include a rail mount to which various attachments can be coupled. One such attachment may be a rail attachment coupled to a support that carries a canister. The canister may include a lid that allows substances to enter the canister, but that prevents substances from exiting the canister. The unmanned aerial vehicle can fly to the specified geographic location, descend or otherwise cause the canister to descend, and maintain a position for a period of time to allow a substance to enter the canister. The unmanned aerial vehicle can then return to the point of origin.

Abstract: A full extension ball bearing drawer slide assembly comprised of a cabinet rail attached to a cabinet piece, an intermediate rail slidingly engaged with the cabinet rail via bearing runners, a drawer rail slidingly engaged with the intermediate rail via a bearing cage, and a cage hold forward device for advantageously positioning the bearing cage for ease of re-insertion of the drawer rail within the intermediated rail. The cage hold forward device is attached to the intermediate rail and comprises a protrusion for engagement with a flexible trigger mounted on the drawer rail and a flexible clip for releasable engagement with the bearing cage.

Abstract: System and method relates to a fuel control and distribution system comprising a fuel source, a fuel line, wherein the fuel source is connected to the fuel line, a fuel pump, wherein the fuel line is connected to the fuel pump, a main fuel line, wherein the fuel pump is connected to the main fuel line, a first remote transport truck, wherein the first remote transport truck comprises a first remote transport truck fuel line, wherein the main fuel line is connected to the first remote transport truck and wherein the first remote transport truck fuel line is connected to the first remote transport truck, a first tap line, wherein the first remote transport truck is connected to the first tap line, and a first fuel cap, wherein the first fuel cap comprises a first fuel level sensor, wherein the first tap line is connected to the first fuel cap and wherein the first fuel cap is adapted to be removably attached to a first equipment fuel tank.

Abstract: A sink includes a body defining a bowl and a faucet holder, wherein the body is formed of an antimicrobial material, wherein the faucet holder includes at least a faucet hole defined through the faucet holder, and a faucet mounted to the faucet holder at the faucet hole.

Abstract: Systems and methods for heating material through cogeneration of thermal and electrical energy can include a heat source and an electric generator configured to produce hot exhaust gas and electricity. One or more heating conduits can carry the hot exhaust gas to one or more bodies of material. The electric generator can at least partially power one or more electric heaters configured to reheat the hot exhaust gas after a portion of heat has been transferred from the hot exhaust gas to the one or more bodies of material.

Abstract: A full extension ball bearing drawer slide assembly comprised of a cabinet rail attached to a cabinet piece, an intermediate rail slidingly engaged with the cabinet rail via bearing runners, a drawer rail slidingly engaged with the intermediate rail via a bearing cage, and a cage hold forward device for advantageously positioning the bearing cage for ease of re-insertion of the drawer rail within the intermediated rail. The cage hold forward device is attached to the intermediate rail and comprises a protrusion for engagement with a flexible trigger mounted on the drawer rail and a flexible clip for releasable engagement with the bearing cage.

Abstract: A diverter injection system is disclosed herein along with systems and methods relating thereto. In an embodiment, the diverter injection system includes a system inlet and a system outlet. In addition, the diverter injection system includes a canister including an internal volume configured to retain diverter therein. Further, the diverter injection system includes a first flow path extending between the system inlet and the system outlet that bypasses the canister, and a second flow path that extends from the system inlet, through the canister, and then to the system outlet. Still further, the diverter injection system includes a plurality of valves, wherein actuation of the plurality of valves is configured to selectively switch between the first flow path and the second flow path.

Abstract: A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.

Abstract: Disclosed is a silent, soft-close compact hinge comprising of a hinge cup pivotally connected to a hinge body via a hinge arm. A set of coil springs biases the hinge to a closed position. A damping mechanism is removably attached to the hinge cup and acted on by the hinge arm. A set of spring sleeves are fitted to the coil springs to insulate the movement of the coil springs on the hinge arm providing the closing bias. The hinge body is comprised of three separate plates adjustably connected to each other with cam screws. The position of the hinge body with respect to the hinge arm is adjustable in three directions without the need for removal or loosening of mounting hardware used to attach the hinge body to a furniture piece.

Abstract: A tracking system (20) for durable assets such as personal weapons (22) is provided. The tracking system (20) includes a durable asset tag (84) including an RFID transponder physically mounted within an externally exposed cavity of the durable asset (22), and an identification card (32) with a machine-readable unique identifier associated with a person. The system also includes first (40) and second (48) databases, each storing information associated with the durable asset (22), and an interface terminal (56) for receiving a unique identifier from the durable asset tag (84) and the unique identifier from the identification card (32), and which communicates with the databases (40, 48) for checking in or checking out the durable asset (22) to the person having the identification card (32). The durable asset tag (84) may be original to the durable asset (22) or retrofitted thereto after manufacture.

Abstract: A method for hydrometallurgical extraction of rare earth elements and niobium from a an ore or a flotation concentrate containing rare earth elements, niobium, iron and alkali earth metals, the method comprising removal of the alkali earth metals using an acidic solution of a pH in a range between about 1 and about 6, leaching the rare earth elements; precipitation of the rare earth elements from a resulting pregnant leach solution using sodium hydroxide, sodium carbonate and sodium bicarbonate; physically separating metal hydroxides from a resulting leach residue containing metal hydroxides, iron oxide, silicate, and pyrochlore; removing the iron oxide by physical beneficiation and then by atmospheric acid leaching; and recovering niobium from a clean solid residue by pressurized acid leaching.

Abstract: A plant growth measurement and prediction system uses drone-captured images to measure the current growth of particular plant species and/or to predict future growth of the plant species. For example, the system instructs a drone to fly along a flight path and capture images of the land below. The captured images may include both thermographic images and high-resolution images. The system processes the images to create an orthomosaic image of the land, where each pixel in the orthomosaic image is associated with a brightness temperature. The system then uses plant species to brightness temperature mappings and the orthomosaic image to identify current plant growth. The system generates a diagnostic model using the orthomosaic image to then predict future plant growth.

Abstract: A handcuff design is provided, including a handcuff strand having ratchet teeth with openings formed therein, a ratchet button comprising teeth configured to interface with the openings formed in the handcuff strand, a universal handcuff key receptacle configured to receive a universal handcuff key, a pawl arrangement including a rotatable pawl element configured to be moved in a direction away from the handcuff strand by the universal handcuff key, the pawl arrangement including a spring mechanism, and a lock bar configured to impede movement of the pawl arrangement unless moved to an unlocked position. Unlocking the handcuff requires digitally actuating a first of the pair of ratchet buttons concurrently with digitally actuating a second of the pair of ratchet buttons while simultaneously employing the universal handcuff key, thereby releasing the ratchet teeth of the handcuff strand.

Abstract: The present disclosure broadly relates to a process for recovering vanadium, iron, titanium and silica values from vanadiferous feedstocks. More specifically, but not exclusively, the present disclosure relates to a metallurgical process in which vanadium, iron, titanium and silica values are recovered from vanadiferous feedstocks such as vanadiferous titanomagnetite, iron ores, vanadium slags and industrial wastes and by-products containing vanadium. The process broadly comprises digesting the vanadiferous feedstocks into sulfuric acid thereby producing a sulfation cake; dissolving the sulfation cake and separating insoluble solids thereby producing a pregnant solution; reducing the pregnant solution thereby producing a reduced pregnant solution; and crystallizing ferrous sulfate hydrates from the reduced pregnant solution, producing an iron depleted reduced solution.

Abstract: A pullout cage apparatus is provided which is comprised of a base frame removably mounted to a pair of robust drawer slides. The drawer slides are coupled to each other by a pair of cross braces, which are in turn mounted to the base of a cabinet frame. A retainer cage is rigidly mounted to the base frame. The retainer cage supports a plurality of adjustment brackets, which allow adjustment of a face plate.