Abstract: A nonwoven fabric dispenser is provided with fixation elements attached to the body of the dispenser and a cutter assembly attached to a lid of the dispenser. Nonwoven fabric stock is secured by the fabric engagement structures when the lid of the dispenser is in a closed configuration and the cutter assembly is configured to separate a sheet of the nonwoven fabric stock of a desired length.

Abstract: The invention relates to environment management, particularly to methods for purifying a wastewater in order to climate a toxic impact of heavy and radioactive metals. A method for purifying fresh, combined and saline wastewater from radioactive and heavy metals using an electrolysis and a special active substance (sorbent), wherein the wastewater is fed to an electrolyzer with a chamber that is separated by a special membrane that is permeable for ions of metals separately of water, then changes of the pH occur in order to form complex compounds, which comprise ions of radioactive and heavy metals. Afterwards, the adsorption of the obtained compounds by the special active substance (sorbent) and filtering-off on a precoat filter that retains ions of heavy and radioactive metals are performed. The obtained filtrate is cemented without drying and evaporation in order to perform final deposition of the radioactive compounds.

Abstract: A system and method is disclosed for permitting a chemical fluid line to serve multiple downstream injection sites from a single upstream pump. One or more redundant primary chemical conduits are manifolded via a flexible joint into a plurality of sub-stream chemical conduits, each of the sub-stream chemical conduits comprising a sub-stream flow meter and an independently controlled motorized flow control valve. A control computer directs each respective flow control valve to open and close depending on the desired flow rate of the respective downstream injection site.

Abstract: Described herein are embodiments of systems and methods for the removal of a direct drive unit (DDU) housed in an enclosure, such as a direct drive turbine (DDT) connected to a gearbox for driving a driveshaft connected to a pump for use in hydraulic fracturing operations.

Abstract: Embodiments of systems and methods for supplying fuel, enabling communications, and conveying electric power associated with operation of a hydraulic fracturing unit of a plurality of hydraulic fracturing units are disclosed and may include a fuel line connection assembly configured to be connected to the first hydraulic fracturing unit and to supply fuel from a fuel source to a gas turbine engine connected to the hydraulic fracturing unit. A system also may include a communications cable assembly configured to be connected to the hydraulic fracturing unit and to enable data communications between the hydraulic fracturing unit and a data center or another hydraulic fracturing unit. A system further may include a power cable assembly configured to be connected to the hydraulic fracturing unit and to convey electric power between the hydraulic fracturing unit and a remote electrical power source or the plurality of hydraulic fracturing units.

Abstract: An apparatus for changing a drilling tool for a drilling rig is described, where the drilling rig comprises a drill tower supporting a drill pipe. The apparatus for changing a drilling tool has a drilling tool changer assembly moveable between a storage position and an exchange position, and the drilling tool changer assembly supports a rotatable carousel assembly. The rotatable carousel assembly is capable of being removed from the drilling tool changer assembly and capable of replacement on the drilling tool changer in the same angular position with respect to the drill pipe as when removed. The rotatable carousel assembly has a plurality of bit adaptors for holding drilling tools and is selectively rotatable to bring a selected drilling tool into coaxial alignment with the drill pipe when the drilling tool changer assembly supporting the rotatable carousel assembly is moved into the exchange position.

Abstract: A multi-functional composition of matter that is useful for injection into a flue gas stream to rapidly and efficiently remove mercury from the flue gas streams, particularly at above average flue stream temperatures of about 340° F. or higher. The multi-functional composition of matter may include a fixed carbon content of at least about 20 wt. %, a mineral content of from about 20 wt. % to about 50 wt. %, a sum of micropore plus mesopore volume of at least about 0.20 cc/g, a micropore volume to mesopore volume ratio of at least about 0.7, and a tapped density of not greater than about 0.575 g/ml. These compositions may be further characterized by number of particles per gram of the composition of matter such that the composition may have at least about 0.8 billion particles per gram, or even as many as 1.5 billion particles per gram.

Abstract: Described herein are embodiments of systems and methods for the removal of a direct drive unit (DDU) housed in an enclosure, such as a direct drive turbine (DDT) connected to a gearbox for driving a driveshaft connected to a pump for use in hydraulic fracturing operations.

Abstract: A method of treating an aqueous composition includes immersing a galvanic cell in the aqueous composition to form a treated aqueous composition. The galvanic cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof. The galvanic cell includes a cathode having a different composition than the anode, the cathode including Cu, Ni, Fe, or a combination thereof.

Abstract: A wastewater collection tank feeds a vaporizing unit through an inlet near the unit's top. A burner produces heat, which a blower blows through a blower tube that passes through the upper portion of the unit to the bottom portion of the unit. A substrate through which heated air can pass extends across the unit between the bottom of the blower tube and the wastewater inlet, and pall rings rest on the substrate. The heated air moving upward through the unit heats the pall rings and the falling wastewater, a substantial portion of which is vaporized at approximately atmospheric pressure. The vapor is vented from the top of the unit. Un-vaporized wastewater collects at the bottom of the unit and is recycled through the system with raw wastewater in the collection tank.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for generating site specific notifications for geographic sites. A set of sites and a log requirements for the sites are associated. Each log requirement specifies a particular log item to be completed by a user by a completion time, and each site specifies a particular physical location. Sites and site users are also associated. Site users for a site are users specified as being responsible for the site. Each site user is associated with at least one log requirement for the site. Each site has an associated notified user. As site users complete logs for the site, or fail to complete logs, the notified user for the site is notified.

Abstract: Systems and methods for determining a boundary from evaluation records for objects are disclosed. In some embodiments, evaluation records for objects (e.g., appraisal records for real estate properties) are accessed. The evaluation records can be used to identify objects with similar characteristics. By representing objects identified as nodes in a graph, edges between nodes representing the identified objects can be established. A network generated from the nodes and edges can be used to identify a boundary comprising objects having similar characteristics.

Abstract: Embodiments of systems and methods for supplying fuel, enabling communications, and conveying electric power associated with operation of a hydraulic fracturing unit of a plurality of hydraulic fracturing units are disclosed and may include a fuel line connection assembly configured to be connected to the first hydraulic fracturing unit and to supply fuel from a fuel source to a gas turbine engine connected to the hydraulic fracturing unit. A system also may include a communications cable assembly configured to be connected to the hydraulic fracturing unit and to enable data communications between the hydraulic fracturing unit and a data center or another hydraulic fracturing unit. A system further may include a power cable assembly configured to be connected to the hydraulic fracturing unit and to convey electric power between the hydraulic fracturing unit and a remote electrical power source or the plurality of hydraulic fracturing units.

Abstract: Provided in this disclosure is a selectively replaceable spindle for a banister. A generally longitudinal spindle body has a first end for engaging a first attachment portion on a surface of a handrail of a banister, and a second end for engaging a second attachment portion on an opposite surface from the handrail. A securement member is releasably secured with one or both of the first and second ends of the generally longitudinal spindle body. The securement member is urged into one of the first or second attachment portions to retain the spindle therein. One or more pins extend transversely from a side surface of the securement member, for engaging a cooperative structure on the spindle body to retain the securement member in a locked position.

Abstract: Embodiments under the present disclosure include the application of an electric field in a region of liquid undergoing ultra-high shear impact, mixing and or cavitation. The co-location of electrolysis and high shear mixing and or cavitation has demonstrated the ability to cause advanced oxidation reactions and advanced reduction reactions in fluid systems such as water with both dissolved and suspended solids, and hydrocarbon with and without water emulsion.

Abstract: Systems and methods for exchanging fracturing components of a hydraulic fracturing unit and may include an exchangeable fracturing component section to facilitate quickly exchanging a fracturing component of a hydraulic fracturing unit. The fracturing component section may include a section frame including a base, and a fracturing component connected to the base. The fracturing component section also may include a component electrical assembly and a component fluid assembly connected to the section frame. The fracturing component section further may include a coupling plate connected to the section frame. The fracturing component section also may include one or more of a plurality of quick-connect electrical couplers or a plurality of quick-connect fluid couplers connected to a coupling plate.

Abstract: An article for use with an associated vertically oriented, generally planar surface may include a generally horizontal top member supported by first and second planar supporting members, which selectively receive the associated vertically oriented, generally planar associated surface therebetween.

Abstract: The present invention provides a blended fuel and methods for producing the blended fuel, wherein a low carbon fuel derived from a renewable resource such as biomass, is blended with a traditional, petroleum derived fuel. A blended fuel which includes greater than 10% by volume of low carbon fuel has an overall improved lifecycle greenhouse gas content of about 5% or more compared to the petroleum derived fuel. Also, blending of the low carbon fuel to the traditional, petroleum fuel improves various engine performance characteristics of the traditional fuel.

Abstract: An improved plunger lift assembly, system, and method that can be used in all types of oil and gas wells including those of vertical, highly-deviated, S-curved, or horizontal bores is described. The plunger lift assembly can be part of a plunger lift system used to lift fluid formations out of a wellbore having a production tubing with a drift diameter. The plunger lift assembly may include a mandrel having a chamber, an elastic sealing mechanism, and a shift rod. The sealing mechanism can be disposed about an exterior of the mandrel. The sealing mechanism may be activated by at least one of pressure in the mandrel chamber and vertical force from movement of the mandrel. The shift rod can control fluid flow through the mandrel chamber.

Abstract: The present subject matter provides various technical solutions to technical problems facing sensor-based vehicle safety technology. To address problems facing identification of safety features (e.g., safety sensors) for a particular vehicle, a vehicle safety feature identification system may be used to identify a vehicle and the safety features that are installed on that vehicle. To address problems facing identification of which safety sensors require maintenance, a vehicle safety feature maintenance system may be used to identify vehicle safety sensors based on information received about one or more vehicle repairs, such as structural repairs following a vehicle collision. The vehicle safety feature maintenance system may use image data or other inputs to identify a vehicle repair area, identify other vehicle components that must be removed or adjusted to complete the vehicle repair, and identify all vehicle safety sensors and other safety features that will need to be repaired, replaced, or recalibrated.