Abstract: The present invention relates to a rotating play device, such as may be mounted to a play surface of an outdoor playground. The rotating play device includes a central post and an upper framework, e.g. upper ring, rotatably mounted to the central post. The device further includes a lower ring suspended from the upper framework by a plurality of cords. During rotation about the central post, the device is configured such that one or more children may (i) stand on the lower ring and hold the upper ring, (ii) sit on the lower ring and hold one or more of the plurality of cords, or (iii) both (i) and (ii). In some embodiments, at least one of the lower ring and the upper ring may be angled to provide a varying distance between the two rings and/or the cords may be flexible such that a user may modify the distance between the lower ring and upper framework at a given riding location.

Abstract: A lighted swing seat has multiple colors of battery-powered or motion-activated LED lights in a housing with a translucent top surface. A controller is configured to flash the plurality of multicolor LEDs, in a set sequence or randomly. A motion sensor is configured to turn off the lights when the swing seat has not moved for a time period exceeding a delay time.

Abstract: A launched swing amusement ride has a carrier (100) for carrying a rider, wherein the carrier is suspended to swing from a support (400) by at least one elongate suspension member (413, 423) and is arranged to swing in more than one direction along an arcuate path, the arcuate path having a lowest point; a launch mechanism (200) located outside of the arcuate path; and a tether (300) that is arranged to releasably couple the carrier (100) to the launch mechanism to accelerate the carrier (100) in a first direction through a portion of the arcuate path between an engagement position and a release position, and to decouple the carrier (100) from the launch system (200) at the release position to propel the carrier (100) on an upward trajectory on the arcuate path.

Abstract: The present invention discloses an improved hobby horse used by children to simulate a real horse. The hobby horse comprises a life like horse head with a neck, a saddle horn, and a hardwood stick body or tail. The horse's head further includes multiple electronic components such as a pair of backlighted eyes, a pair of nostrils, a controlling computer, an amplifier with a horse sound synthesizer, a smoke generator with a driver and a power source to power the electronic components. The saddle horn is disposed at the horse's neck, comprises a plurality of light emitting diodes (LEDs) to illuminate the saddle horn. The amplifier is configured to emit a whinny sound of the horse and the smoke generator is configured emit smoke from the nostrils of the horse's head. The electronic components of the hobby horse could be activated via a multi-functional switch.

Abstract: A waterslide feature for providing a looping or arcuate travel path for a rider traveling thereon and method for making the same. The waterslide feature may have an entrance, an exit, and a surface (e.g., a ride surface, such as a bottom surface and/or a wall surface) therebetween comprising a transparent and/or semi-transparent surface configured to permit the rider to see through the surface and experience an exterior environment. Spectators or bystanders to the waterslide feature may be able to see through the surface and to witness riders riding upon the waterslide feature. The waterslide feature may be oriented at an angle to horizontal (e.g., tilted) and/or may be positioned within a defined exterior environment contained within an exterior wall. The exterior wall may be configured to retain water such that at least a portion of the waterslide feature is below the height of the water.

Abstract: Disclosed is a vehicle for an amusement facility has a chassis, a passenger accommodation and a connecting element in the form a pendulum bar. The lower end of the pendulum bar is rigidly connected to the passenger accommodation; the upper end is connected to the chassis via a joint such that it can be rotated and/or swivelled. The pendulum is connected to the chassis via a joint.

Abstract: The present disclosure discloses a transformable toy. The present disclosure provides a transformable toy, in which, when an arbitrary transformation inducing unit comes into contact with a body of the toy, the transformation inducing unit and the body are transformed together.

Abstract: A cooling pond system and related methods of improving cooling performance in a cooling pond system using one or more submerged dams to increase cooling performance within the cooling pond system, and increase salt precipitation or recovery. The inclusion of one or more submerged dams within an existing cooling pond system can reduce an outflow temperature by 1-5° F. as compared to the same cooling pond system without any submerged dams. In addition or alternatively, pond depth can be controlled to enhance flow mixing and convection cooling. As the temperature is reduced throughout the cooling pond system, more potassium containing salts are precipitated form the brine solution resulting in increased production or recovery within the same cooling footprint.

Abstract: The disclosure relates to systems for treating water and method for use.

Abstract: Process for isolating pure 2-ethylhexyl acrylate or pure 2-propylheptyl acrylate from the corresponding crude alkyl acrylate by distillation, wherein the process is carried out in a dividing wall column (1) which has separation-active internals and vaporizer (7) and in which a dividing wall (8) is arranged in the longitudinal direction of the column to form an upper joint column region (9), a lower joint column region (14), an inflow section (10, 12) having a side feed point (2) and an offtake section (11, 13) having a side offtake point (3), the column has a number of theoretical plates in the range from 10 to 60, where the number of theoretical plates of the dividing wall column (1) relates to the sum of the theoretical plates in the joint upper column region (9), the joint lower column region (14) and the inflow section (10, 12), the side feed point (2) for the corresponding crude alkyl acrylate is arranged at a theoretical plate in the region commencing at least two theoretical plates above the bottommost

Abstract: A tray for a mass-transfer column permits contact between a liquid phase and a gas phase. The tray may comprise a tray feed via which the tray is charged with the liquid phase, a tray drain via which the liquid phase drains from the tray, and first guide means for guiding the liquid phase where the first guide means forms a first course path along which the liquid phase flows from the tray feed to the tray drain, enabling contact with the gas phase. A second guide means may form a second course path overlapping with the first course path, which leads from an inlet to an outlet. The first guide means may have at least two partial concentric paths. Temperature-control fluid may flow along the second course path in at least one of the at least two partial paths opposite the flow direction of the liquid phase.

Abstract: Systems and methods are disclosed which enable an atmospheric water generator to measure a variety of water quality parameters throughout its subsystems and conduits, and implement corresponding response protocols when the measurements deviate from their normal ranges. The ranges may be reprogrammable locally at the generator or remotely from the generator. The response protocols may include self-cleaning regimes to help quickly and efficiently bring deviant measurements back into their normal ranges. Generator notification, alarm and shutdown protocols may be implemented when the measurements reach unsafe values, in order to protect the consumer and ensure their ongoing confidence in the quality of the water dispensed from the generator. Subsystems are also described which improve the operational efficiency of the generator, keep the cold dispensing line clear of bacteria, and maximize the useful life of UV bulbs within the water collection and cold storage tanks.

Abstract: A system, machines and methods for extracting select moieties, flavonoids, and essential oils from plant material without co-extracting chlorophyll, lipids and other undesirable constituents from plants. Super-cooled extraction techniques are taught. Likewise, according to embodiments methods provides 100% grain ethyl alcohol extract with a concentration of chlorophyll that is below 1%.

Abstract: A separation method and a separation apparatus for a solvent extracted by supercritical extraction. The separation method increases a solvent recovery rate by minimizing the amount of a solvent to be evaporated and lost since the pressure of a solvent is reduced by arranging two or more separators in series. The method includes: introducing a fluid having passed through a supercritical extractor into a first flash vessel; introducing the fluid which has passed through the first flash vessel into a second flash vessel; and discharging and recovering the carbon dioxide and the solvent which have passed through the second flash vessel, respectively. The pressure of the first flash vessel is 40-100 bar, and the pressure of the second flash vessel is 1-30 bar. The fluid includes carbon dioxide and a solvent.

Abstract: A method and system for solid phase extraction of a compound of interest from a sample matrix using a syringe having a barrel and a plunger, a sorbent for use with the syringe, and a desalting purification column having an end configured to receive liquid from the syringe body.

Abstract: A coalizing product and a method for the coalescing of oil contaminants from a water flow is described, in which the product according to the invention is arranged in an apparatus for in depth coalescing of oil contaminated water. There are also disclosed uses of the method and the product for coalescing of oil contamination in water.

Abstract: An electrowetting coalescing device for coalescing droplets of a dispersed phase within a continuous phase includes an inlet in fluid communication with a first porous layer and a second porous layer. The first porous layer is employed as a first electrode and the second porous layer is employed as a second electrode, and a voltage difference exists between the first porous layer and the second porous layer to thereby create an electric field between the first porous layer and the second porous layer. The electrowetting coalescing device includes an outlet for receiving a fluid having passed through the first porous layer and the second porous layer.

Abstract: An oil separating device is provided in an intake path through which a cavity of a mold and an intake port of a vacuum pump communicate with each other and the oil separating device is configured to separate oil from a combustion gas flowing through the intake path. The oil separating device includes a first tubular body and a spiral plate accommodated in the first tubular body. The spiral plate and the first tubular body define a spiral flow path.

Abstract: Methods of separating a multiphase mixture are provided. The multiphase flow can include petrochemicals. The multiphase flow is flowed through a vane assembly having a plurality of curved passages. The multiphase mixture is gradually decelerated such that it collides with surfaces of the vane assembly at relatively oblique angles and at lower relative speeds. Such a configuration can reduce droplet breakup which, in turn, can preserve larger droplet sizes that are more likely to settle to a liquid bed below the inlet diverter due to gravity.

Abstract: Techniques in the disclosure use non-wetting or wetting surfaces to promote or hinder separation of gas from solution in a liquid. The systems and processes promote bubble nucleation and/or promote separation of a gas or gases from a liquid using non-wetting surfaces. Also, the systems and processes suppress bubble nucleation in order to create supersaturated solutions of gas or gases in a liquid by using wetting surfaces.

Abstract: Method and apparatus for filtration of polluted liquid in a single upright filtration tank, comprising feeding of fresh filter material via a fresh filter material inlet in a lower part of the filtration tank, feeding of polluted liquid via a liquid inlet in an upper part of the filtration tank, mixing of the filter material and the polluted liquid in the single upright filtration tank to filter the polluted liquid by conveying filter material from the lower part of the filtration tank to the upper part of the filtration tank, and discharge of used filter material through an upper used filter material outlet in the upper part of the filtration tank, and discharge of clean liquid from the filtration tank through a lower clean liquid outlet in the lower part of the filtration tank.

Abstract: A filter assembly that comprises a housing, an outer filter element, and an inner filter element. The outer filter element is positionable within the housing and comprises an outer filter media. The inner filter element is positionable within the outer filter element and comprises an inner filter media, a media support structure, an inner top endplate, and an inner bottom endplate. The inner top endplate comprising a top rib that extends continuously around a portion of a top surface of the inner top endplate.

Abstract: A separation panel includes a body member defining a separation surface and an opposed surface with a plurality of apertures extending through the body member and opening out into the separation surface and the opposed surface of the body member. The body member is made up of a plurality of discrete elements secured together to form substantially hexagonal apertures. A securing arrangement secures the discrete elements together.

Abstract: A rotary screen separator includes a screen having a substantially cylindrical shape extending from a feed end to a discharge end along a horizontal longitudinal axis. The screen is perforated in a plurality of discrete regions. The regions including at least a first perforation region wherein the screen is perforated in a first perforation pattern and a second perforation wherein the screen is perforated in a second perforation pattern. The first perforation pattern is sized to allow liquid and finer particulate matter to pass through the perforations and the second perforation pattern is sized to allow liquid and coarser particulate matter to pass through the perforations in the second perforation pattern. A first vane structure is helically shaped at a first vane depth having a first vane pitch and handedness selected to advance feedstock within the screen as the screen is rotated in operation.

Abstract: A filter cartridge for operatively coupling to an appliance interface to treat a fluid, such as water, being supplied to the appliance. The interface comprises a bypass valve for actuating the interface between a bypass mode in which the fluid flowing through the interface does not flow through the filter cartridge and a treatment mode in which the fluid flowing through the interface is directed through the filter cartridge for treatment by the filter cartridge. The filter cartridge comprises a cartridge housing having a first end and a second end and extending along a housing longitudinal axis through the first end and the second end. A filter media is contained within the cartridge housing between the first end and the second end. The filter cartridge also has a first end cap on the first end of the cartridge housing and a second end cap on the second end of the cartridge housing. A bypass valve actuator is attached to the cartridge housing and extends distally to an actuator distal end.

Abstract: A filter base and a fluid filter and priming pump assembly are disclosed. A fluid filter and priming pump assembly may include a fluid filter housing and a filter base attached to the fluid filter housing, the filter base including a priming pump configured to move fluid through the fluid filter housing. The filter base or the fluid filter and priming pump assembly may be mounted in a plurality of different orientations. Related methods are also disclosed.

Abstract: An air purifying system having a series of specific filters stacked to facilitate removal of particles from the air. Removable filters include a pre-filter, a HEPA electrostatic filter, an activated carbon filter and a cold catalyst filter. Additional filters or alternate filters may be used, so long as there is no negative impact on the system efficiency and effectiveness.

Abstract: The present invention provides a bag-shaped filter in which the durability is higher than that of a bag-shaped filter of the related art without an increase in costs such that the replacement frequency can be lowered. Further, the present invention provides a bag-shaped filter in which smaller solids can be captured compared to a bag-shaped filter of the related art such that high filtration performance and durability can be achieved simultaneously. A bag-shaped filter used to filter waste liquid including solid components, wherein the filter is a bag-shaped circular knitted fabric a part or the whole of which is obtained using a fiber material at least a part of which is an elastic yarn, and a portion formed by at least doubly knitting a knitted fabric is provided in a bag-shaped bottom portion.

Abstract: A photocatalytic filter according to an embodiment includes: a plurality of weft threads each of which includes a plurality of fibers extending in a first direction; a plurality of warp threads each of which includes a plurality of fibers extending in a second direction intersecting the first direction; and photocatalysts which are carried by the plurality of weft threads and the plurality of warp threads. At least two warp threads sandwiches at least one weft thread or at least two weft threads sandwiches at least one warp thread at the intersection portion between the weft thread and the warp thread.

Abstract: A filter unit for a fume extraction device includes a filter body having a filter element and a collecting region which is situated below the filter body and at least partially surrounds the filter body for collecting a liquid. An upper region of the filter unit is formed with an air inlet opening to let in air that is suctioned by the fume extraction device, with the air inlet opening at least partially surrounding the filter body. A bottom side of the filter unit is provided with an air outlet opening to let air out of the filter unit to the fume extraction device.

Abstract: A filter holder (2) for a filter element (3) that has an oval-shaped cross section transverse to a longitudinal direction (LR) thereof, with a receiving section (19) for receiving the filter element (3), a fluid inlet (24) for allowing fluid (L) to be filtered into the filter holder (2), and a fluid outlet (25) for letting the fluid (L) filtered with the aid of the filter element (3) out of the filter holder (2), wherein the fluid inlet (24) is arranged such that an inflow direction (E) of the fluid (L) to be filtered is oriented in the direction of a lateral surface (29) of the filter element (3) that can be received in the receiving section (19), whereby the fluid (L) to be filtered flows tangentially around the filter element (3) that can be received in the receiving section (19) in order to separate particles (33) contained in the fluid (L) to be filtered on a wall (30) of the receiving section (19) with the aid of centrifugal force.

Abstract: A removable filter system and a dust collector with the removable filter system. The dust collector includes a filter carriage movably connected to a carriage base; at least one filter and filter support removably connected to the filter carriage. The filter carriage is movable between at least three positions: in the first position the filter being in an operational location, in the second position the filter being vertically lower but inside the dust collector, and in the third position the filter being outside the dust collector. A method for replacing a filter in the dust collector includes lowering the filter with the filter carriage; translating the filter and carriage out of the dust collector housing; removing the filter from the carriage; placing a replacement filter on the carriage; translating the replacement into the dust collector housing; and raising the filter carriage to lock the replaced filter into an operational location.

Abstract: An outer periphery coating material being coated onto an outer peripheral surface of a ceramic honeycomb structure to form an outer periphery coated layer. The outer periphery coating material comprises: a particle mixture containing cordierite particles and amorphous silica particles in a mass ratio of from 40:60 to 80:20; and from 10 to 30% by mass of crystalline inorganic fibers in an outer percentage relative to the particle mixture. An average particle diameter of the cordierite particles is different from an average particle diameter of the amorphous silica particles.

Abstract: A thermochemical energy storage system and method of storing thermal energy are described. The energy storing system described herein comprises a reactor comprising: a) a reactor with a CO2 sorbent including MgO; and b) a supercritical CO2 source with supercritical CO2 and H2O, wherein the supercritical CO2 source is in fluid communication with the reactor and the CO2 sorbent including MgO to allow flow of the supercritical CO2 and H2O between the supercritical CO2 source and the reactor, thereby allowing contact of CO2 with the CO2 sorbent comprising MgO.

Abstract: A heat exchange flow path portion is formed by alternately winding two spirally-shaped first and second heat transfer walls, with a predetermined gap interposed therebetween in the radial direction of the flow path pipe, around the outer periphery of a cylindrical flow path pipe, in which a cooling heat source is disposed in a main heat transfer flow path inside thereof ?n inlet flow path and an outlet flow path for introducing compressed air into the flow path pipe and discharging compressed air from the flow path pipe are alternately formed, in the radial direction, from the gap between the heat transfer walls. Heat exchange is performed between compressed air that flows in the flow path and compressed air that flows in the flow path.

Abstract: A spray pipe is disclosed, which includes: a pipe portion, having a cylindrical shape, and configured to extend along an axis in the horizontal direction, a distal end portion of the pipe portion being closed; a plurality of nozzle portions configured to guide an absorbing liquid, flowing through the pipe portion in the horizontal direction, upward in a vertical direction, the plurality of nozzle portions being arranged at a plurality of positions on an upper end portion of the pipe portion in the vertical direction; and a leg portion disposed on a lower end portion of the pipe portion in the vertical direction, and having an installation surface along the horizontal direction, wherein the leg portion-is disposed in a state where the installation surface is made to oppositely face a support surface of a pipe support installed on the absorption tower, the support surface extending along the horizontal direction.

Abstract: Porous metal oxide catalytic materials with planar morphologies which are derived from metal-organic framework (MOF) materials via thermal decomposition, oxidation pretreatment and pyrolysis processes. The porous metal oxides are mainly transition metal oxides, derived from MOFs containing the corresponding transition metal ions, such as Cu, Zn, Y, La, Ce, Ti, Zr, V, Cr, Mn, Fe, Co, and Ni ions. The transformation conditions from MOF materials to metal oxides, such as temperature, atmosphere and duration, are well defined to obtain metal oxides with controlled morphologies. Furthermore, the present subject matter relates to a low-temperature catalytic decomposition of volatile organic compounds (VOCs) with a wide concentration range on two-dimensional metal oxides.

Abstract: A honeycomb-like porous filter for collecting PM in exhaust gas is provided in an exhaust gas passage of an engine. The exhaust gas flows from inflow side cells 12 of the filter through pores 16 of partition walls 15 of the filter to outflow side cells 13. A catalyst 17 is supported on surfaces of the partition walls 15 constituting the inflow side cells 12 and on inner surfaces of the pores 16 of the filter. The catalyst 17 is supported on the surfaces of the partition walls 15 more thickly than on the inner surfaces of the pores 16.

Abstract: The present invention relates to a particulate filter which comprises a wall flow filter of length L and three mutually different catalytically active coatings X, Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls forming surfaces OE and, respectively, OA, and wherein the channels E are gas-tightly sealed at the second end and the channels A are gas-tightly sealed at the first end, characterized in that the coating X is located in the porous walls, the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels A on the surfaces OA.

Abstract: A method for filtering a protein-containing liquid containing protein at a concentration of 20 mg/mL or more and 100 mg/mL or less, the method including a prefiltration step of filtering the protein-containing liquid by a prefilter having a pore size of 0.08 ?m to 0.25 ?m and including a hydrophobic resin, and a virus removal step of filtering the protein-containing liquid by a virus removal membrane including a synthetic polymer, after the prefiltration step, wherein the protein-containing liquid before conducting the prefiltration step includes 0.25 g or more of a trimer or higher multimer of the proteins having an average diameter of less than 100 nm, per 1 m2 of the virus removal membrane.

Abstract: A filtration apparatus according to an aspect of the present invention includes a plurality of filtration modules each including a plurality of hollow fiber membranes aligned so as to extend in an up-and-down direction, a bar-like upper holding member configured to secure upper ends of the hollow fiber membranes, and a bar-like lower holding member configured to secure lower ends of the hollow fiber membranes; a cleaning module configured to supply bubbles from below the filtration modules; a frame including a plurality of vertical frame members disposed to extend in the up-and-down direction and a plurality of lateral frame members disposed to extend in lateral directions, the frame being configured to hold the filtration modules and the cleaning module; and a plurality of lower guide rails configured to engage with the lower holding members and disposed between opposite faces of the lateral frame members, wherein at least part of the cleaning module is suspended from the frame.

Abstract: A filtration apparatus includes a tubular casing having a longitudinal axis and first and second casing ends. A plurality of partition plates are positioned in the casing and sealed thereto to thereby define an intake collection chamber between a first of the partition plates and the first casing end, a discharge collection chamber between a second of the partition plates and the second casing end, and a reject collection chamber opposite the second partition plate from the second casing end. A plurality of elongated filtration membrane stacks are positioned side-by-side in the casing generally parallel to the longitudinal axis. Each filtration membrane stack includes an intake end which is fluidly connected to the intake collection chamber, a discharge end which is fluidly connected to the reject collection chamber, and a permeate channel which extends between the first and second ends and is fluidly connected to the discharge collection chamber.

Abstract: An example separation system includes a stack of membrane plate assemblies. An example membrane plate assembly may include membranes bonded to opposite sides of a spacer plate. The spacer plate may include a first opening in fluid communication with a region between the membranes, and a second opening in fluid communication with a region between membrane plate assemblies. Adjacent membrane plate assemblies in the stack may have alternating orientations such that bonding areas for adjacent membranes in the stack may be staggered. Accordingly, two isolated flows may be provided which may be orthogonal from one another.

Abstract: A separation membrane (10) of the present disclosure includes: a separation functional layer (30) composed of a polyamide containing, as a monomer unit, at least one selected from the group consisting of piperazine and a piperazine derivative; and a coating (40) covering the separation functional layer (30) and containing a polymer having a repeating unit represented by the following formula (1). In the formula (1), N+ is a nitrogen atom constituting a quaternary ammonium cation, and R1 and R2 are each independently a substituent containing a carbon atom bonded to the nitrogen atom.

Abstract: This ionic liquid-containing laminate includes a porous layer having affinity with ionic liquids (C), said layer holding an ionic liquid-containing liquid (A) within voids therein, and a porous layer lacking affinity with ionic liquids (B). The porous layer having affinity with ionic liquids (C) may include an inorganic material (e.g., metal oxide particles having an average particle size of 0.001 to 10 ?m on a number basis). The ionic liquid-containing liquid (A) may include an ionic liquid containing cations selected from ammonium, imidazolium and phosphonium cations, and anions selected from fluorine-containing anions, cyano-containing anions and amino acid-derived anions. The porous layer having affinity with ionic liquids (C) may include 1 to 100 volume parts of the ionic liquid-containing liquid (A) with respect to 100 volume parts of voids therein.

Abstract: The present invention relates to an acid-resistant nanomembrane with an improved flow rate and a method of producing the acid-resistant nanomembrane, and more particularly, to an acid-resistant nanomembrane with an improved flow rate, which can also be used under strong-acid and high-temperature conditions for the recovery of rare metals, valuable metals, and the like generated in a smelting process and which exhibits both excellent flow rate and excellent acid resistance, and a method of producing the acid-resistant nanomembrane.

Abstract: A separation membrane (10) of the present disclosure includes: a separation functional layer (30) composed of a polyamide; and a coating (40) covering the separation functional layer (30) and containing a polymer having a repeating unit represented by the following formula (1). In the formula (1), N+ is a nitrogen atom constituting a quaternary ammonium cation, and R1 and R2 are each independently a substituent containing a carbon atom bonded to the nitrogen atom.

Abstract: The present invention relates to a composite membrane for gas separation and/or nanofiltration of a feed stream solution comprising a solvent and dissolved solutes and showing preferential rejection of the solutes. The composite membrane comprises a separating layer with intrinsic microporosity. The separating layer is suitably formed by interfacial polymerisation on a support membrane. Suitably, at least one of the monomers used in the interfacial polymerisation reaction should possess concavity, resulting in a network polymer with interconnected nanopores and a membrane with enhanced permeability. The support membrane may be optionally impregnated with a conditioning agent and may be optionally stable in organic solvents, particularly in polar aprotic solvents. The top layer of the composite membrane is optionally capped with functional groups to change the surface chemistry. The composite membrane may be cured in the oven to enhance rejection.

Abstract: A gas dissolution accelerating device with a simple structure efficiently increases the concentrations of oxygen dissolved in deep water, such as at lake bottoms. A gas dissolution accelerating device includes a cylindrical member located parallel to a vertical direction when installed, a box member having an opening facing downward when installed, and a fixing unit for fixing the box member to a diffuser. The box member includes a top plate having a cone-shaped protrusion protruding inward and a through-hole receiving the cylindrical member. The fixing unit includes a flat attachment plate having an upper surface onto which the box member is mounted, a pair of halved banding members for clamping a feeding pipe of the diffuser, and rod-shaped connecting members connecting the attachment plate to the banding members.

Abstract: A resin composition preparation apparatus and a polyurea resin are provided. A resin introduction unit is configured to inject a composition solution and air mixed in the composition solution. An air bubble generator is connected to the resin introduction unit. An air bubble separation tank is connected to the air bubble generator. The air bubble generator comprises: an inlet through which the composition solution and the air are introduced from the resin introduction unit; an outlet through which the resin composition is discharged to the air bubble separation tank; and an internal flow channel connecting the inlet and the outlet so as to pass therethrough. The internal flow channel comprises a groove portion configured to form the air bubbles having a smaller particle size than that of the air.