Abstract: A means to exploit the Dean Vortices for dynamic filtering on a macro scale intended for application in utility and industrial processes is disclosed. This method relies on an apparatus of computed construction to optimize the centripetal force and minimize the effect of gravity on the separation and effectiveness of the Dean Vortices. The method is also supported by an apparatus of construction which results in an optimized elliptical flow channel that enhances the formation and persistence of the Dean Vortices.

Abstract: Systems, devices, and method for gas removal from a wearable device are provided. The systems comprise a gas removal filter having an inlet, a fluid outlet, and a vent port. The gas removal filter comprises a filter mesh between the inlet and outlet, the filter mesh configured to allow only liquid phase material through the filter mesh. The systems also comprises a gas detector for detecting gas in the gas removal filter; a orientation sensor for determining an orientation of the gas removal filter; a transducer protector filter having a first side and a second side, the transducer protector filter on fluid communication with the vent port of the gas removal filter; a pressure transducer in fluid communication with the second side of the transducer protector filter; and an gas removal pump in fluid communication with the second side of the transducer protector filter.

Abstract: According to the present invention there is provided a separation device for separating a fluid, said fluid comprising multiple components, into at least two components comprising: a support structure; at least one conduit mounted on or within said support structure for rotation about an axis; at least one inlet for introducing a flow of said fluid into said at least one conduit; and at least one outlet for outputting at least one of said components therefrom; wherein the said at least one conduit is configured such that, in use, when said flow of said fluid is applied thereto, said conduit is thereby caused to rotate on or within said support structure about said axis, thereby separating said fluid into at least two components.

Abstract: An ion removing system having an ion removing apparatus that includes a fine bubble generating part generating fine bubbles and that causes the fine bubbles to adsorb metal ions to remove the metal ions from the hard water due to supply the fine bubbles generated by the fine bubble generating part into the hard water. In addition, the ion removing system includes a primary-side flow path to supply the hard water to the ion removing apparatus, a separating apparatus that separates crystals of a metal component deposited by crystallizing the metal ions removed from the hard water by the ion removing apparatus, and a secondary-side flow path that takes out, from the separating apparatus, treated water obtained by separating the crystals. The primary-side flow path is provided with a supply-side backflow prevention mechanism.

Abstract: This Invention Patent application provides a comprehensive program for control of organic and inorganic contaminants from paper production processes and other potentially pollutant industries through the integrated action of three continuous treatment systems, referenced herein as “3WAY”, with a first system aimed at the treatment of process waters for reuse, more specifically “white or clarified water” present in the “wet end” of paper and cellulose machines, allied to a second system based on the use of an adsorbent clay mix equipment that enables treatment of the cellulose pulp in previous phases of the process up to the machine circuit, in addition to a third system that carries out the cleaning of contaminant deposits present in clothing (felts and wires) or other machine parts through application of a heated and pressurized cleaning solution with a high detergency power.

Abstract: A process for production of useful hydrocarbon materials from plastic waste and reaction system therefor is provided. The process includes frequentatively thermolyzing of high molecular weight hydrocarbons such as plastic waste to produce useful medium molecular weight hydrocarbons and low molecular weight hydrocarbons. The process utilizes low molecular weight hydrocarbons as solution reactants which helps in reducing the viscosity of the material for more effective heat transfer. The process also includes addition of one or more low molecular weight olefins and solution reactants to high molecular weight hydrocarbons to augment the free radical environment. The process also includes hydrogenating and oxidizing the high molecular weight hydrocarbons. The process enables production of the useful, predominantly hydrocarbon materials such as waxes, lube oil base-stocks, refinery feedstocks, intermediates or fuel additives.

Abstract: Microfabricated particulate matter (PM) monitors and fractionators within the PM monitors are provided. A primary channel of a vertical or out-of-plane fractionator receives air samples, comprising particles of varying sizes, from the external environment. The air samples then pass through a plurality of microfluidic channels, wherein inertial forces are applied within the microfluidic channels to separate the particles by size. The fractionator comprises a horizontal air outlet for particles having a size below a threshold size and a vertical air outlet for particles having a size above a threshold size. Thus, the proportion of PM in the air sample is reduced prior to deposition on a PM monitor. A virtual cyclone may also be provided that comprises a bend positioned at a flow path through a primary channel of the vertical microfabricated fractionator.

Abstract: Fluid refining systems and methods are disclosed. A fluid refining apparatus may include an enclosed housing containing a plurality of upper cylinders and a plurality of lower cylinders. The enclosed housing may include at least one inlet port, at least one outlet port, and an inner chamber in fluid communication with the at least one inlet port. The plurality of upper and lower cylinders may be positioned in interlaced relationship to each other, and may be adapted for rotation relative to each other. The plurality of upper cylinders may have gradually increasing diameters extending from an inner upper cylinder to an outer upper cylinder. The plurality of lower cylinders may have gradually increasing diameters extending from an inner lower cylinder to an outer lower cylinder. Each of the cylinders may be spaced apart from its adjacent cylinder(s) and include at least one fluid aperture.

Abstract: A vortex breaker for a particulate separator has a first set of vanes spaced along a perimeter of a first shape and a second set of vanes spaced along a perimeter of a second shape, where the second shape resides within the first shape. Each of the vanes has a top edge, a bottom edge, an inside edge, and an outside edge. The vanes in the first and second sets of vanes intersect the first and second shapes, respectively. The vanes in the first set are oriented in a first rotational direction, and the vanes in the second set are oriented in a second rotational direction that is opposite the first rotational direction. The first set of vanes and the second set of vanes define fluid flow paths between the outside edges and the inside edges of the sets of vanes.

Abstract: A system includes production tubing, an electric submersible pump, a motor, a shroud, a motor head, and a cable. The production tubing traverses a packer and is disposed within the well. The electric submersible pump is connected to the production tubing and is located up hole from the packer. The motor is located up hole from the packer and is configured to power the electric submersible pump. The shroud encapsulates the motor, isolates the motor from an external environment, and contains a flow of produced fluids coming from the production tubing. The motor head is connected to the production tubing and extends from the external environment into the shroud. The power cable is connected to a section of the motor head that is located outside of the shroud and isolated from the produced fluids by the packer and the shroud.

Abstract: This disclosure concerns a system and a method for removing dissolved solids from liquids. Specific implementations concern desalinating water. The system may comprise a blower, such as a thermal fan/compressor, configured to atomize a solid-bearing liquid to produce a hot, humid gas containing dissolved solids; a gas-solid separator configured to receive hot, humid gas containing entrained dissolved solids from the blower to separate the solids from the humid gas and to transmit the humid gas with solids removed through an exit port; a heater configured to heat the hot, humid gas received from the exit port of the gas-solid separator; and a condenser configured to receive heated humid gas from the heater and to condense solids-free liquid therefrom. The thermal fan/compressor may comprise a plurality of nozzles with outlets positioned adjacent atomization apertures across which a solid-bearing liquid flows and through which gas exiting the nozzles passes.

Abstract: A fluid processing device includes a detection assembly having a source and a detector. The source emits a signal to fluid or a fluid component in the fluid processing device, with at least a portion of the signal reaching the detector. The detection assembly further includes one or more adjustment systems configured to adjust the position and/or orientation of one or more components of the detection assembly. The position and/or orientation of the entire source and/or the entire detector, the position and/or orientation of a component of the source with respect to another component of the source, and/or the position and/or orientation of a component of the detector with respect to another component of the detector may be adjusted to increase the signal received by the detector.

Abstract: A fuel oxygen reduction unit for an engine is provided. The fuel oxygen reduction unit includes an inlet fuel line; a stripping gas source; a contactor selectively in fluid communication with the stripping gas source, the inlet fuel line, or both to form a fuel/gas mixture; and a separator that receives the fuel/gas mixture, the separator configured to separate the fuel/gas mixture into an outlet stripping gas flow and an outlet fuel flow; wherein a flow of stripping gas passes through the fuel oxygen reduction unit a single time.

Abstract: A cyclonic separating device includes first and second cyclonic separating units. The first cyclonic separating unit is fitted over the second cyclonic separating unit. The second cyclonic separating unit includes first cyclones and second cyclones respectively arranged in a ring shape. Dust falling ends of the first cyclones define an accommodation space therebetween. The second cyclones partially extend into the accommodation space. Each first cyclone comprises first, second and third cone sections, each of which has a cone structure; airflow sucked in the first cyclones is sequentially separated by the first, second and third cone sections, and dust in the airflow is discharged from the third cone section; a central axis of the first cone section is parallel to a longitudinal axis of the dust cup; and an angle between a central axis of the second cone section and a central axis of the third cone section is 5°-20°.

Abstract: Methods and systems for sampling blood components in a photopheresis procedure are disclosed. The methods include collecting samples at selected times during a photopheresis procedure.

Abstract: A method of concentrating sediment in a water tank involves attaching a vortex inducing device to an opening through the roof of the tank between the central vertical axis and the side walling of the tank. The device has a device inlet which narrows to a device outlet. The device outlet is orientated such that, water flowing out via the device outlet induces a vortex within the pooled water, thereby causing sediment to collect centrally on the floor of the tank.

Abstract: A multipurpose wheel-washing apparatus includes a wheel-washing unit including an upper frame provided with a plurality of rollers on which wheels of a vehicle are to be rotatably seated, and injection nozzles configured to inject high-pressure washing water onto the wheels seated on the rollers; and a lower frame provided with a water tank located below the upper frame so as to collect falling waste/turbid water; a water storage unit configured to store washing water to be supplied to the injection nozzles; a purification unit configured to receive and purify the waste/turbid water from the water tank and then send purified water to the water storage unit; and a blowing unit disposed on an exit side of the wheel-washing unit so as to blow air and provided with spray nozzles for selectively spraying water in a particulate form. Accordingly, environmental pollution can be significantly reduced.

Abstract: A plastic molded article includes a base having a main surface, a first tubular portion protruding from the main surface, a second tubular portion protruding from the main surface and having an inner diameter smaller than that of the first tubular portion, and a pair of ribs that protrudes from the main surface and connects an outer circumferential surface of the first tubular portion and an outer circumferential surface of the second tubular portion to each other. The base, the first tubular portion, the second tubular portion, and the ribs are integrally molded of plastic. The ribs are located on opposite sides of an imaginary plane that includes a central axis of the first tubular portion and a central axis of the second tubular portion.

Abstract: Apparatus and methods configured for cyclonic froth separation are disclosed. Exemplary implementations may: provide slurry into a first volute; provide fluid communication between the first volute and an interior of a porous barrier; receive pressurized gaseous fluid through a body wall to an exterior of the porous barrier; provide fluid communication between the exterior of the porous barrier and the interior of the porous barrier; facilitate flows of pressurized gas through the porous barrier; receive outputted froth and output froth to the exterior of the apparatus; provide fluid communication between the interior of the porous barrier and the second volute; retain froth within the interior of the porous barrier; receive slurry exhausted from the interior of the porous barrier; provide fluid communication of exhausted slurry to the exterior of the apparatus.

Abstract: A liquid supply device includes a collection sub tank and a collection flow path. The collection sub tank collects liquid from a liquid discharge head. The collection flow path connects the liquid discharge head and the collection sub tank. The collection sub tank includes a first inflow port connected with the collection flow path and a first inner wall portion on an extension line extending from the first inflow port in a direction in which the liquid flows into the collection sub tank from the collection flow path. The first inner wall portion has one of an inclined surface inclined with respect to the extension line, an arc-shaped surface, and a curved surface.

Abstract: The present invention discloses a centrifugal fuel purifying apparatus, including, a center shaft, a centrifugal cylinder, a shaft seat, a rotating skeleton, a disc type guide plate, a fuel gathering impeller, a rotating wheel, a vacuum pump, a fuel outlet pipe, a fuel inlet, pipe, a fuel unloading box, a pollutant receiving box, a tank body and a PLC controller, wherein the alarm fuel tank is arranged at the top in a tank body of the fuel tank, a fuel level meter is disposed within the alarm fuel tank, a fuel inlet is provided on the upper part of one side of the alarm fuel tank above the fuel level meter, a fuel outlet is provided on the lower part of one side of the alarm fuel tank below the fuel level meter, and the fuel inlet is communicated with the centrifugal cylinder through the fuel inlet pipe.

Abstract: A fluid processing system may include a flow control cassette comprising at least one interface sensor chamber in fluid communication with at least one of a plurality of separate channels, the at least one interface sensor chamber defined at least in part by a wall, and at least one capacitive sensor disposed on the wall of the at least one interface sensor chamber. The fluid processing system may include, in the alternative or in addition, at least one syringe comprising a wall defining a barrel having a first end and a second end, the barrel having a bore with or without a piston or plunger disposed therein, and at least one capacitive sensor disposed on an outer surface of the wall of the syringe.

Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.

Abstract: A fluid injector system includes a powered fluid injector, a connection port configured to receive a single-use disposable set having tubing connected to a fluid inlet port at a first end and connected to a waste outlet port at a second end, and a detector associated with the connection port and configured to generate a signal in response to a sonic, infrasonic, or ultrasonic wave emitted from the single-use disposable set during a priming operation of the single-use disposable set. In some examples, the detector is configured to generate a signal if the frequency of the wave emitted from the single-use disposable set is outside a predetermined range of frequencies corresponding to a predetermined range of frequencies of air expelled from the tubing. A method for detecting the multiple uses of a single-use disposable set connected to a fluid injector system is also provided.

Abstract: A method and apparatus for preparing boron nitride nanotubes (BNNTs) according to an embodiment may ensure mass-production, may increase yield by reducing a production time, and may prepare BNNTs with high purity.

Abstract: Disclosed herein is an apparatus for facilitating purification of sludge and tailing, in accordance with some embodiments. Accordingly, a sedimentation unit receives sludge and tailing in a first tank, separates wastewater from the sludge and the tailing, and transfers the wastewater from the first tank to a second tank. Further, a centrifugal unit creates a vortex in the wastewater. Further, a thermal hydrolysis unit coagulates a second impurity of the wastewater using coagulants and transfers the wastewater from the second tank to a third tank. Further, a digesting unit digests a macromolecule of the wastewater into a compound and transfers the wastewater from the third tank to a fourth tank. Further, a nutrient removal unit filters the wastewater from the compound and transfers the wastewater from the fourth tank to a fifth tank. Further, a reservoir unit disinfects the wastewater and stores the wastewater in the fifth tank.

Abstract: Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

Abstract: A system includes a hydraulic fracturing system including a tank having a slurry and an injector line, where the injector line is disposed between a high-pressure pump and a treatment line to fluidly couple to a wellhead. The system includes a plurality of valves disposed adjacent to the injector line and a control system communicatively coupled to the plurality of valves. The control system fluidly isolates the injector line using the plurality of valves, fills the injector line with an amount of the slurry using a first valve of the plurality of valves, and injects the slurry into the treatment line using a second valve of the plurality of valves.

Abstract: A system includes a hydraulic fracturing system including a tank having a slurry and an injector line, where the injector line is disposed between a high-pressure pump and a treatment line to fluidly couple to a wellhead. The system includes a plurality of valves disposed adjacent to the injector line and a control system communicatively coupled to the plurality of valves. The control system fluidly isolates the injector line using the plurality of valves, fills the injector line with an amount of the slurry using a first valve of the plurality of valves, and injects the slurry into the treatment line using a second valve of the plurality of valves.

Abstract: A fuel bunkering apparatus shapes fluid flow in a flow shaping line preferably shaped to have a plurality of loops. Shaping the two-phase flow drives the heavier, denser fluids to the outside wall of the flow shaping line and allows the lighter, less dense fluids such as gas to occupy the inner wall of the flow shaping line. With the gas positioned on the inner wall, an exit port on the inner wall permits a majority, if not all, of the gas, along with a minimal amount of liquid, to be diverted to a conventional gas-liquid separator at a flow rate much lower than the total flow rate within the flow shaping line. The remaining liquid flow in the flow shaping line is subsequently introduced into an adjustable phase splitter to separate different liquid components from one another.

Abstract: Liquid separator provided with a housing which includes an at least partially cylindrical wall defining a separation chamber, closed at one end by a base and at the other end by a lid in which there is a gas outlet for the discharge of the treated gas. A shield is provided in the separation chamber surrounding the gas outlet in the separation chamber from the aforementioned lid. The liquid separator has an inlet for a liquid-gas mixture to be treated. The inlet is located in the lid so that the liquid-gas mixture tangentially enters the separation chamber in the space between the wall and the shield.

Abstract: A fluid separator unit includes an elongate body having a circular internal cross-section and a longitudinal axis, an inlet which directs a fluid flow into the body in a rotational flow pattern around the longitudinal axis, a first outlet, a second outlet, a first centrifugal separation zone arranged within the body, a second centrifugal separation zone arranged within the body, a first fluid path from a central part of the first centrifugal separation zone to the first outlet, a second fluid path from an outer periphery of the second centrifugal separation zone to the first outlet, and a third fluid path from the second centrifugal separation zone to the second outlet. A diameter of the second centrifugal separation zone is smaller than a diameter of the first centrifugal separation zone.

Abstract: The invention relates to an internal combustion engine having a fuel tank (36), a tank ventilation line (38) and a Venturi nozzle (30) disposed in a fluid-carrying component (16), wherein the Venturi nozzle (30) has an inflow channel (28), an opening point (40) adjoining downstream of the inflow channel (28) with a fluid connection to the tank ventilation line (38), and an outflow channel (32) adjoining downstream of the opening point (40). In this case, an outflow section (48) of the Venturi nozzle downstream of the opening point (48) is surrounded by the component (16) in such a manner that a detection space (46) is formed around the outflow section (48), wherein the detection space (46) has at least one inlet opening (50) via which the detection space (46) can be pressurized and wherein at least one pressure sensor (34) for monitoring the pressure in the detection space (46) is provided.

Abstract: A hanger for a turbine engine can include a first surface confronting a cooling airflow, a second surface facing a heated airflow, and a third surface radially outward of the first surface. The hanger can also include a cyclonic separator with a dirty air inlet and a clean air outlet, as well as a cooling air circuit extending through the cyclonic separator.

Abstract: A skimmer assembly for connection to a fiberglass swimming pool via a circular fluidic access port formed therethrough, and having a conduit for fluidic connection to the fluidic access port, wherein the conduit defines a circular end for connection to the fluid access port and an oppositely disposed rectangular end with a contoured body portion extending therebetween defining a flow path. The assembly further includes a skimmer defining a rectangular fluid inlet, a cylindrical skimmer body portion, a generally rectangular channel connecting the rectangular inlet and the cylindrical body portion in fluidic communication, and a fluid outlet connected in fluidic communication with the cylindrical body portion.

Abstract: A filtering module includes a cyclone having a contaminated air inlet part into which external contaminated air and cleaning water cleaning the contaminated air are each introduced, and a cleaned air outlet part through which air cleaned by bringing the cleaning water into contact with the contaminated air is discharged; a water tank coupled to the cyclone, to which the cleaning water cleaning the contaminated air is introduced, and storing mixed water in which a pre-stored fluid and the cleaning water are mixed; and a fluid circulating part providing the mixed water stored in the water tank to the contaminated air inlet part.

Abstract: A dust collecting apparatus includes a dust separation unit to separate dust from suctioned air; a dust storage unit to store the dust separated in the dust separation unit; a pressing member to compress the dust stored in the dust storage unit, and having a pressing plate support part, and a pressing plate supported by the pressing plate support part; a fixing member disposed between an inner circumferential surface of the dust storage unit and the pressing plate support part; and a path formed by a part of the fixing member, located between the pressing plate support part and the inner circumferential surface of the dust storage unit, and through which the air between the pressing plate and the fixing member passes, wherein one or more holes through which the air between the pressing plate and the fixing member passes are formed at the pressing plate.

Abstract: An LED lead frame structure includes a lamp body, and a stamped metal frame including transversely spaced and longitudinally extended first longitudinal frame portion and second longitudinal frame portion, longitudinally spaced and transversely extended first transverse frame portion and second transverse frame portion and a material strip frame. The first transverse frame portion is integrally connected to a rear end of the first longitudinal frame portion. The second transverse frame portions integrally connected to a rear end of the second longitudinal frame portion. This product can be regarded as a semi-finished product having a bendable structure and can be bent again if necessary, and thus, this design can reduce the number of times in bending lamp pins.

Abstract: A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.

Abstract: A dust collecting apparatus includes a dust separation unit to separate dust from suctioned air; a dust storage unit to store the dust separated in the dust separation unit; a pressing member to compress the dust stored in the dust storage unit, and having a pressing plate support part, and a pressing plate supported by the pressing plate support part; a fixing member disposed between an inner circumferential surface of the dust storage unit and the pressing plate support part; and a path formed by a part of the fixing member, located between the pressing plate support part and the inner circumferential surface of the dust storage unit, and through which the air between the pressing plate and the fixing member passes, wherein one or more holes through which the air between the pressing plate and the fixing member passes are formed at the pressing plate.

Abstract: This invention is directed to a hydrocyclone that will separate particles from a liquid stream, such as from an irrigation water stream for use in drip irrigation. The invented hydrocyclone has an inlet, a separation section, a clean liquid outlet, and a slurry outlet, wherein the separation section has a vortex and a cone, and wherein the vortex length is more than three times longer than the cone length, and the cone has an angle of about 45 degrees. The invented hydrocyclone also has a vortex diameter to vortex length ratio of between about 0.8 and about 1.2, and a cone length to vortex length ratio of between about 0.28 and about 0.35. The invented hydrocylone may be of unitary construction. When in use, the invented hydrocyclone may create a clean water stream having at least 78% fewer particles than the original liquid stream.

Abstract: A device for unstopping a stopped specimen vessel that contains a liquid specimen such as blood is equipped with a mechanism which sucks and captures particles floating around the opening of the specimen vessel and prevents contamination of the specimen. The unstopping device grips a vessel and the stopper of the opening of the vessel, and removes the stopper from the opening of the vessel by changing the relative distance between the vessel-gripping mechanism and the unstopping mechanism. The unstopping device is equipped with: suction holes for sucking therethrough the gas which is present around the opening and contains liquid or solid particles; a pipeline which is connected to the suction holes and through which the sucked gas and particles are led downstream; a suction device connected to the pipeline; and a spirally flexed pipeline part disposed between the pipeline and the suction device.

Abstract: A drain tube device that includes a first tubular region, a second region and arcuate tubular region interposed between the first tubular region and the second region. In certain embodiments, the arcuate region is contiguously joined to the first tubular and the second region such that the first tubular region and the second region form an acute angle in a first plane that is between 45° and 90°. The second region has an end distal to the arcuate tubular region and includes a longitudinal opening defined in at least a portion of the region between the arcuate tubular region and the distal end. In certain embodiments, the arcuate region can also have a configuration that provides an angle located out of the first plane between the first tubular region and the second region that is between zero and 90°.

Abstract: A hydraulic fracturing system utilizes a multi-phase separation apparatus to separate gas entrained in hydraulic fracturing fluids during the blending process prior to introduction of hydraulic fracturing fluid into high pressure fracturing pumps by directing hydraulic fracturing fluids from a blender through a plurality of loops and thereafter, directing a portion of the separated fluid into a vortex cluster system.

Abstract: An abrasive recovery system for a waterjet cutter, the abrasive recovery system comprising: a drain coupler including at least one drain nozzle, the drain nozzle having at least one wall defining a drain nozzle bore, the drain coupler defining a drain opening wherein the drain opening is in fluid communication with the drain nozzle bore; and a flexible hose coupled to the drain nozzle to establish fluid communication between the drain opening and the flexible hose.

Abstract: In an example implementation, a fluid supply assembly includes a printhead assembly and a carriage comprising a quick-release, hand-operable attachment mechanism to removably attach the printhead assembly to the carriage. A fluid conduit interconnect is rigidly attached to the printhead assembly by a tool-operable fastener. The fluid conduit interconnect is to connect to a fluid conduit to communicate printing fluid from an off-axis printing fluid supply to the printhead assembly.

Abstract: A water extractor includes an inlet, an outlet a body, outer wall, inner wall, helical wall, plurality of catchment areas, and scuppers. The body extends between the inlet and the outlet. The inner wall is disposed radially inward from the outer wall and forms a main flow channel through a portion of the body. The helical wall extends between and is connected to the outer wall and the inner wall and forms a helical passageway fluidly connected to the inlet and the outlet. The helical passageway includes a plurality of turns along a bottom of the body. One of the catchment areas is disposed in each turn of the helical passageway. The scuppers are disposed in the catchment areas and are connected to and extend radially inward from the outer wall.

Abstract: A method of reducing surface roughness in an internal passage of a workpiece includes contacting the internal passage with a corrosive working fluid comprising water at or near supercritical conditions.

Abstract: An air trap for a blood circuit and method for removing air from blood in a dialysis unit. The air trap may include a blood inlet supply line, a blood outlet supply line, and a container having an approximately spherical internal wall, an inlet at a top end of the container connected to the blood inlet supply line, and an outlet at a bottom end of the container connected to the blood outlet supply line. The inlet may be offset from a vertical axis of the approximately spherical internal wall such that blood entering the container is directed to flow in a spiral-like path. The inlet port may be arranged to introduce blood into the container in a direction that is approximately tangential to the approximately spherical inner wall of the container and/or in a direction that is approximately perpendicular to the vertical axis of the container.

Abstract: The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.