Abstract: A portable collapsible table assembly having a support surface, a centrally located pole coupled to the support surface and a ground support structure coupled to the pole. The ground support structure includes a pair of downwardly facing spear members aligned along the central axis of the pole. The spear members intersect one another generally along the central axis of the pole, and the spear members are substantially perpendicular to one another.

Abstract: A retractable rain cover for attachment to a golf cart includes a rigid frame, a canopy, and at least one closable opening. The golf cart has a roof including upper and lower layers defining an opening therebetween and a rear end portion adapted to support at least two side-by-side upright golf bags. The rigid open frame is attachable to a rear of the golf cart and includes two side members, one located on each side of the rear end portion of the golf cart. The canopy is carried by and extends between the two side members. The canopy is movable between a stowed position between upper and lower layers of the roof and a deployed position supported by the two side members of the frame. The canopy in the deployed position overlays the upper ends of the two side-by-side upright golf bags. The at least one closable opening within the canopy is located to align with the upper end of at least one of the two side-by-side upright golf bags when the canopy is in the deployed position.

Abstract: Collapsible structure are provided having a first base panel and a second panel, each having a foldable frame member that has a folded and an unfolded orientation, and a material partially covering the frame member when the frame member is in the unfolded orientation, with the material assuming the unfolded orientation of its associated frame member. The second panel is flexed so that the first and second panels define an interior space, with the second panel having opposing first and second end edges that are coupled to the outer periphery of the first panel. The second panel can have two or more supporting frame members to allow the collapsible structures to be provided in different configurations and sizes. In addition, the first base panel can be replaced by a fabric or similar piece of material that is coupled to the first and second end edges of the second panel. The second panels can be coupled within, or outside, the outer periphery of the first base panel or fabric.

Abstract: Tandem photovoltaic cells, as well as related components, systems, and methods, are disclosed.

Abstract: An electrical power generator includes a concave reflector formed to reflect light parallel to its central axis toward the central axis, on a surface of an energy receiving structure that preferably has a surface covered with photovoltaic cells facing outward from the central axis in directions perpendicular to the central axis. A cooling fluid is circulated though channels in a structure mounting the photovoltaic cells. The concave reflector is mounted to pivot about two axes of revolution, being driven by one or two motors to track the movement of the sun across the sky.

Abstract: A dye-sensitized solar cell, comprising: a light-transmission substrate; a plurality of auxiliary electrodes, formed on the light-transmission substrate; an oxide semiconductor layer which is formed on the light-transmission substrate so as to cover the plurality of auxiliary electrodes directly; and dyes, adhered to the oxide semiconductor layer. Each of electrons, excited at the dyes, is transferred to a nearest auxiliary electrode over a distance “C”, which is smaller than a thickness “B” of the oxide semiconductor layer.

Abstract: A processing apparatus includes: a processing chamber configured to contain a workpiece; a first nozzle provided in the processing chamber, the first nozzle discharging vapor onto the workpiece; a wall enclosing the processing chamber; a fluid channel provided inside the wall; a fluid inlet; and a fluid outlet. The fluid inlet is provided in communication with the fluid channel. The fluid outlet is provided in communication with the fluid channel, where a fluid flows into the fluid inlet, passes through the fluid channel, and flows out of the fluid outlet. A processing method for processing a workpiece moving in a processing chamber, the processing method includes: discharging a vapor from a first nozzle toward the workpiece while flowing a fluid through a fluid channel which is provided inside a wall, the wall enclosing the processing chamber.

Abstract: A lamp for creating a decorative visual effect from the movement of fluids contained therein. In one form, the lamp features a tank having opposing front and rear surfaces that are substantially parallel to one another, at least one light source, a plurality of immiscible fluids of varying densities contained within the tank and a housing unit for aesthetically and functionally supporting the tank. The light source illuminates the liquids within the tank and can provide sufficient radiant heat to cause the temperature of the fluids within the tank to increase such that they become less dense. As the fluids within the tank become warmer and less dense, they begin to rise in the tank at varying rates and can create a dynamic visual display. In addition to the light source, alternative heat sources can be employed to provide added heat to the immiscible fluids within the tank.

Abstract: A valve core includes a cylindrical core base fixed in a mounting hole having an inner circumferential surface, a movable shaft extending through the core base so as to be movable, the movable shaft having a distal end, a first sealing member made from rubber and located on the distal end of the movable shaft so as to adhere closely to a distal end of the core base or the inner circumferential surface of the core mounting hole, thereby closing the core mounting hole, and a second sealing member made of a metal glass and located on the distal end of either one of the movable shaft and the core base so as to adhere to the distal end of the other, thereby closing the core mounting hole.

Abstract: In a valve assembly (18) of the type having a housing, a pole piece (16) disposed within the housing, and an exhaust port (50), one embodiment of an exhaust port protective device (10) comprises a flow restrictor assembly coupled at least in part to the pole piece (16). The flow restrictor assembly provides fluid flow in a first direction and restricts fluid flow in a second direction.

Abstract: A liquid level controller including a pilot valve switchable between snap and throttle modes. A displacer translates changing liquid level in a tank into movement that is transferred to the pilot valve which will provide output gas to a control valve to allow or to prevent the discharge of fluid from the tank. The pilot valve has a throttle supply inlet and a snap supply inlet and a single output passage. When the pilot valve is in the throttle mode, the snap supply inlet is a vent passage and when the pilot valve is in the snap mode, the throttle supply gas inlet is a vent passage.

Abstract: A system and method for delivering a specified-quantity of a fluid using a flow controller based on a fluid delivery profile is described. One embodiment includes a fluid delivery profile that includes a delivery time window with a plurality of set points that each correspond with a specified instant in time within the delivery time window. The method also includes delivering the fluid according to the fluid delivery profile through a variable valve using the flow controller and a feedback signal from a flow sensor.

Abstract: A relief valve mounted on a pump such as an oil pump, for preventing pressure abnormality by allowing fluid to escape when a discharge fluid pressure reaches a predetermined set value, wherein influx of oil sludge into the valve can be prevented. The relief valve comprises: a valve housing; and a guide inflow path which is in the same direction as a slide direction of a valve main body that slides along a valve guide path of the valve housing under a predetermined pressure and which provides communication between a discharge flow path and the valve guide path. The valve guide path is arranged so that a relief opening part thereof is closed downwardly by the valve main body. The valve guide path and the guide inflow path are arranged above an orthogonal cross section of the discharge flow path.

Abstract: A pressure controller for a filter of a pneumatic cylinder includes a base and a knob. The knob is fitted to a shaft of the base to be moved between an open position, in which the knob is free for rotation and exposes an indication member on the shaft, and a close position, in which the knob is fixed and hide the indication member in the knob.

Abstract: A hydraulic fluid reservoir and hydraulic pump combination has at least one hydraulic fluid port and includes a container with a hollow body having a top and a conduit having a bottom within the container and a top above the bottom. The conduit has an opening adjacent to the bottom of the conduit. The opening is spaced apart below the top of the container. A closure member is releasably, sealingly connected to the top of the conduit. Hydraulic fluid can be added to the container via the conduit up to the level of the opening of the conduit. Addition of further hydraulic fluid fills the conduit to the top thereof and the conduit overflows if additional hydraulic fluid is added after the top of the conduit is reached by the fluid. Preferably the container has a main interior chamber and a smaller chamber which is adjacent to one of the side walls of the container. The smaller chamber is has a bottom opening near the bottom of the smaller chamber which communicates with the main interior chamber.

Abstract: The invention describes features that can be used to control flow to an array of microchannels. The invention also describes methods in which a process stream is distributed to plural microchannels.

Abstract: A seal ring of an on-off valve of a pipe coupling is prevented from separating from the on-off valve even when a fluid flows at high speed around the seal ring. When an on-off valve 26 is in the closed position, a seal ring 50 is sealingly engaged under pressure with an annular valve seat surface 34. A forward annular valve surface portion 52 located forward of the seal ring and a rear annular valve surface portion 54 at the rear of the seal ring respectively have a forward annular passage limiting portion 56 and a rear annular passage limiting portion 58 that are adapted to be in contact with or close proximity to the annular valve seat surface. During the period from when the on-off valve starts to move from the closed position (FIG. 4) toward the open position (FIG.

Abstract: A quick-disconnect, the nipple portion of which has a pressure relief path and a coupler portion of which has a safety lock. The nipple portion is provided with a spring-loaded sleeve which covers the relief flow path when not engaged. The sleeve is hand driven against the spring load to expose the flow relief passage. Any pressure in the quick-disconnect is then discharged to atmosphere. The coupler portion incorporates a piston that is pressure activated to block the motion of a disconnecting sleeve. The piston is moved to the unlocked position by a wave spring when the pressure is removed. These features are packaged in a small volume for use in systems where space is limited. The quick-disconnect is designed and fabricated with materials that can withstand a proof pressure of 20,000 PSI. Such capabilities are especially useful in aircraft systems with a supply pressure of up to 5,000 PSI.

Abstract: This invention relates to a rotary valve device for controlling and distributing flow of a fluid medium directly in response to the rotary motion of a motor shaft. Fluid medium is continuously supplied to a cavitated disk through a manifold by a pump source where the cavitated disk rotates at the same rotational speed as the motor shaft. The cavitated disk has a first void region in continuous fluid communication with the pump source and alternately communicates with cylinder conduits to drive a piston. A second void region in the cavitated disk is so dimensioned and proportioned to permit fluid medium to be alternately exhausted from the cylinder and to be distributed to exhaust conduits and then to the atmosphere.

Abstract: A water distributing device has one input pipe and two output pipes; a casing, and a turning rod located in the casing and turnable in the casing so as to provide a discharge of water in a first direction, a discharge of water in a second direction, a discharge of water in both directions with redistribution of a quantity of water, and a stopping of a flow of water.

Abstract: A spool valve for, e.g., a vehicle automatic transmission system include a valve body defining an exhaust port, a supply port, and a control port. A solenoid-actuated spool is disposed in the valve body and reciprocates between a closed configuration, wherein the supply port is fluidly isolated from the control port, and an open configuration, where fluid communication is established between the supply port and control port. The spool is juxtaposed with a chamber formed by a closed end of the valve body. A bleed passageway is formed in the spool from the chamber to an exit port that is juxtaposed with the exhaust port. The end piston on the spool nearest the chamber allows fluid in an intermediate configuration to communicate from the control port to the chamber, from the chamber through the bleed passageway, and out of the exhaust port to ameliorate the effect of fluctuations in fluid supplied to the valve.

Abstract: A three position solenoid operated cartridge valve comprises an elongate cylindrical cartridge valve housing having an axial through bore defining an interior chamber. A port end of the chamber comprises an end port and a plurality of axially spaced side openings define first, second and third side ports. An axial opposite end comprises a sleeve end receivable in a solenoid, in use, and a spring chamber intermediate the port end and the sleeve end. A valve member is movable in the chamber at the port end between a neutral position and opposite first and second actuated positions for selectively controlling fluid flow between the end port and the side ports. A solenoid plunger is movable in the sleeve end of the interior chamber. A rod operatively connects the valve member to the solenoid plunger for positioning the valve member responsive to movement of the solenoid plunger using a pull force or a push force.

Abstract: A passive flow control valve including a barrier member adapted to attach to a fluid conduit. The barrier member defining an upper portion, a lower portion and an intermediate portion depending from the upper portion and the lower portion. The lower portion and the upper portion each defining an opening therein for allowing fluid to pass therethrough. The intermediate portion defining at least one orifice defined therein, wherein the orifice is configured to allow substantially controlled fluid flow therethrough. The flow control valve may also include a passive arrangement for collecting floatables discharged from a pipe.

Abstract: An end cap (100) is insertable into an open end of a sleeve (12) as an end closure for forming a package (10). The end cap (100) has a housing (102) that is adapted to be closely received by the sleeve (12) and that terminates at a first end in a flanged perimeter (104). The end cap (100) also has a strut structure (120) extending between regions of the housing (100) so as to reinforce the housing (100) against deformation. The strut structure (120) may extend between regions of the housing (102) proximate the flanged perimeter (104). The strut structure (120) may take the form of a cover that is affixed to the flanged perimeter (104) of the housing (102). The cover (120) may have a perimeter (124) with an interior portion (122) extending therebetween. The perimeter (124) of the cover may be affixed to the flanged perimeter (104) of the housing (102).

Abstract: There is a need for people who handle hazardous materials to be able to effectively and efficiently block cesspits and/or pipes of various drainage systems in circumstances of for example, a chemical or liquid spill or a gas leak so as to prevent or limit flow of the same into for example, the water table. This problem is solved through the use of a man made fluid inlet or outlet passage, blocking assembly having an inflatable bladder operatively linked to a fluid communication element, one aspect of the element being adapted to receive a pressurised fluid supply wherein, when a pressurised fluid passes through the fluid communication element, the bladder is adapted to inflate to block the passage in a fluid type manner.

Abstract: The drainage pipe slope measuring device includes a housing having an upper surface and a lower surface. The upper surface has an opening formed therethrough, the lower surface preferably having a substantially concave or arcuate cross-sectional contour adapted for flush mounting against the drainage pipe. A spirit level vial is mounted within the housing and is positioned adjacent the opening. The vial is preferably formed from at least partially transparent or translucent material and is adapted for containing a liquid and a gas bubble. Indicia is formed on the container and is visible through the opening so that, when the housing is mounted on the drainage pipe, a position of the gas bubble with respect to the indicia provides the user with a visual indication of the slope of the drainage pipe. The vial is preferably divided into separately colored regions to provide the user with further visual contrast.

Abstract: A method of manufacturing a double pipe includes a step of inserting a straight inner pipe into a straight outer pipe such that the inner pipe and the outer pipe are positioned at a predetermined relative position, a step of fixing a first end portion of the outer pipe to the inner pipe so as to form a first fixing portion, a step of bending the outer pipe and the inner pipe at the same time at a predetermined portion so as to form at least one bending portion after the fixing step of the first end portion, and a step of fixing a second end portion of the outer pipe to the inner pipe so as to form a second end portion after the bending.

Abstract: A hose assembly comprises: a flexible corrugated inner hose suitable for conveying and dispensing loose-fill insulation material, and a non-conforming outer hose snugly fitted about the inner hose, the outer hose having a substantially cylindrical outer surface that is substantially free of corrugations.

Abstract: A multi-layer woven creping fabric comprising a plurality of warp yarns and weft yarns or shutes. The multi-layer woven creping fabric has a machine or roll side and a sheet contacting side. A plurality of weft yarns or shutes on the machine or roll side of the fabric which are lobed or grooved yarns and/or having weft yarn or shute diameters which are less than the warp yarn diameter.

Abstract: A multi-layer oversewn system having at least two flat electric conductors A protective layer made of an elastic material is located at least in an oversewn region between the flat electric conductors. The material of the protective layer is selected in such a way that it prevents a short-circuit between the flat electric conductors during the oversewing process by sealingly engaging the needle during the oversewing process.

Abstract: The invention relates to a method for filling a compressed-gas container, in particular a compressed-gas container in an airbag system, with a gas mixture, or for producing a gas mixture in a compressed gas container. According to said method, a gas mixture or at least one gaseous component of the gas mixture is introduced into a cooled compressed-gas container in the form of a gas or liquid-cooled gas.

Abstract: In situ gas flow management equipment disposed within a high pressure industrial gas storage tank wherein interior longitudinally extending thermal management equipment interconnected with an external heat exchanger is installed in the interior of the tank along the central axis thereof and includes a stem extending from one end of the thermal management equipment, a fixed receptacle at an end of the tank disposed in operative relationship with the stem such that longitudinal displacement and axial rotation between the stem and receptacle is permitted, and a gas flow control embedded within the receptacle regulating the flow of gas into and from the tank, the in situ device therein, the external heat exchanger, and means for refilling and depleting the tank. Single ended and dual ended examples are described.

Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable there between. Further, the cutter is capable of elevating the arm either above or below the worktable. Not only is the arm capable of being lengthened and shortened, but also it is also of capable of rotation producing a variety of miter cuts. The arm is also capable of rotating to a vertical axis to produce a chop cut motion. The bifurcated table or work piece support is capable of being rotated through a number of degrees relative to the cutter also producing mitered or angled cuts. The bifurcated worktable is also capable of being elevated above or below or at the level of the cutter. The cutter, if in the form of a circular cutter blade, is preferably provided with the conventional pivotal spring-loaded blade guard.

Abstract: A worktable includes two first rails arranged in parallel on a base, two guide rods movable along the first rails in a first direction and a second direction reversed to the first direction, two second rails respectively slidably coupled to the guide rods, a sliding plate fixedly mounted on the second rails, and a positioning device for locking the sliding plate to stop the sliding plate from movement relative to the base.

Abstract: Methods for optimizing lumber are provided. In an embodiment, boards cut from a log are examined for warp stability and/or knots. This occurs prior to and/or after the planing process. Based on the examination for warp stability and/or knots, the boards can be sent to a lumber upgrade process, such as for example, re-drying, edging, splitting, trimming, chopping, chipping, or the like. Accordingly, the method of the present invention enables more efficient allocation of lumber towards manufacturing needs.

Abstract: The carburized component of the present inventions is characterized by having a base metal containing: C: 0.10% to 0.40%; Si: 0.05% to 0.8%; Mn: 0.35% to 1.2%; Cr: 2.0% to 6.0%; and remnant including Fe and inevitable impurities, having a carburized layer formed on a surface layer portion of said base metal, having a grain boundary oxidized layer depth of 1 ?m or less on a surface thereof and an average C concentration SC of 1.5% to 4.0% at 25 ?m deep from the surface, and adjusted so as to satisfy: 1.76SC?1.06<WCr<1.76SC+0.94, wherein said carburized layer also has a carbide area ratio of 15% to 60% at 25 ?m deep from the surface, an fine carbide area ratio, having a dimension of 0.5 ?m to 1 ?m, constitutes 80% or more of the total, and further 70% by volume or more of said fine carbide is M3C type.

Abstract: A high-performance stainless steel sheet which has a high strength which is optimal for a gasket for use in high-performance engines of automobiles and motorcycles and which also has excellent workability and fatigue properties and a method for its manufacture are provided. At least in a region from the surface of the sheet up to 3 ?m in the thickness direction, nitrogen compounds of at least 10 nm and at most 200 nm are present in an amount of at least 200 per 100 ?m2. The number of nitrogen compounds of at least 10 nm and at most 200 nm in a region from the sheet surface up to 3 ?m in the thickness direction of the sheet is at least 2 times the number of nitrogen compounds of this size in the central portion of the sheet thickness.

Abstract: An anisotropic rare-earth bonded magnet having a network boundary phase is provided by imparting melt fluidity accompanied by a slip to a composite granule and compressing and molding the composite granule in a magnetic field together with extensible polymer molecules and a chemical contact. In the bonded magnet, the maximum energy product is 147 kJ/m3 in the thickness of 1 mm, or 127 kJ/m3 in the thickness of 300 ?m. This bonded magnet contributes to increase in output and decrease in size and weight of a permanent-magnet motor.

Abstract: In the process for producing methionine of the present invention uses, as an equipment material for a step of hydrolyzing 5-(?-methylmercaptoethyl)hydantoin in the presence of potassium carbonate to produce methionine, a stainless steel containing 21.0 to 30.0% by weight of a Cr element, 2.5 to 11.0% by weight of a Ni element and 1.0 to 5.0% by weight of a Mo element, a ratio of the total content of the Cr element and the Mo element to the content of the Ni element being from 4.7 to 14.0, is used.

Abstract: An airbag inflator bottle member comprising a tubular body having a reduced-diameter portion at an end portion for fitting an initiator or the like thereto in which the reduced-diameter portion has a good low temperature toughness comparable to that of the portion which is not reduced in diameter is manufactured by the following method. A steel tube having a composition comprising C: 0.05-0.20%, Si: 0.1-1.0%, Mn: 0.10-2.0%, Cr: 0.05-2.0%, sol. Al: at most 0.10%, Ca: 0.0003-0.01%, optionally one or more elements selected from Cu: at most 1.0%, Ni: at most 1.5%, Mo: at most 1.0%, V: at most 0.2%, Nb: at most 0.1%, and Ti: at most 0.1%, and a remainder of Fe and impurities in which P: at most 0.025% and S: at most 0.010% is subjected to cold working, then it is cut to a predetermined length, and the cut steel tube is subjected to reducing in at least one end portion thereof and then to quenching and tempering.

Abstract: A metal powder manufacturing device for manufacturing a metal powder includes a feed for supplying a molten metal, a fluid spout unit, and a course modification unit. The fluid spout unit further includes a channel and an orifice. The channel is provided below the feed, allowing passing of the molten metal supplied from the feed. The orifice is opened at a bottom end of the channel, spouting a fluid into the channel. The above course modification unit is provided below the fluid spout unit, and forcibly changes the traveling direction of a dispersion liquid. This dispersion liquid is composed of multiple fine droplets dispersed into the fluid. The above droplets are a resultant of a breakup caused by a contact between the molten metal and the fluid ejected from the orifice. Here, the dispersion liquid is transported so that the droplets is cooled and solidified in the dispersion liquid in order to manufacture the metal powder.

Abstract: An aluminum alloy product is provided that includes an ADC12-T4 aluminum alloy. The ADC12-T4 aluminum alloy is cast into the product utilizing a high pressure, slow velocity casting technique. Further, an alloy is provided that in some embodiments produces cast parts with high strength, wear resistance, hardness and/or ductility, with little or no soldering.

Abstract: A method for electroplating is provided in which a copper layer is patterned using a resist. A barrier layer lies below the copper layer and is used to supply the electroplating current in regions without the copper layer. The method makes it possible to produce high-quality soldering bumps.

Abstract: A surface treating agent containing a novel phenylnaphthylimidazole compound represented by the following formula is brought into contact with the surface of copper or a copper alloy. In the formula, when A1 is a phenyl group, then A2 represents a 1-naphthyl group or a 2-naphthyl group, and when A1 is a 1-naphthyl group or a 2-naphthyl group, then A2 represents a phenyl group; and R represents a hydrogen atom or a methyl group.

Abstract: A method of manufacturing steel components particularly suited to components such as steering racks having net shape forged gear teeth. The method comprising heating at least a portion of a steel blank to a first temperature of at least 600° C., forging the portion to shape, cooling the portion in a controlled manner to a second temperature above 200° C., then immediately heating at least part of the surface of the portion to an austenising temperature, and then quenching the portion to harden the surface.

Abstract: A method of manufacturing a 13Cr steel pipe which satisfies a hardness (HRC) of at most 22 with 13Cr grade L80 of American Petroleum Institute (API) standards, which is an indicator of a high strength, high yield ratio, and good corrosion resistance, is provided. A steel billet having a chemical composition comprising, in mass percent, C: 0.15-0.21%, Si: 0.16-1.0%, Mn: 0.35-1.0%, Cr: 10.5-14.0%, P: at most 0.020%, S: at most 0.0050%, Al: 0.025-0.050%, and a remainder of Fe and impurities is subjected to hot working with a finishing temperature of 800-960° C. to form a mother pipe, which is immediately quenched at a cooling rate of at least air cooling and then tempered by heating.

Abstract: A process for fabricating a worked product or a monolithic multi-functional structural element comprising aluminium alloy includes a hot working step and at least one transformation step by cold plastic deformation after the hot transformation step. At least two zones of the structural element have imposed generalized average plastic deformations and the imposed deformations are different by at least 2%. Structural elements can be fabricated, particularly for aeronautical construction, with properties that are variable while their geometric characteristics are identical to those of existing components. The process is economic and controllable, and properties can be varied for parts not requiring any artificial ageing.

Abstract: An auto ignition/gas generating composition is provided that contains DL-tartaric acid as a first fuel; a second fuel selected from carboxylic acids; amino acids; tetrazoles; triazoles; guanidines; azoamides; metal and nonmetal salts thereof; and mixtures thereof; and potassium chlorate as a first oxidizer. Potassium perchlorate is also preferably included as a second oxidizer. The composition is typically contained within a gas generating system such as an airbag inflator or seat belt assembly, or more broadly within a vehicle occupant protection system.

Abstract: A tire for a vehicle comprises, an inner wheel (12) adapted to mount to a vehicle having a radially outer surface (34). A first ring (16) is annular and concentric with the inner wheel (12) and has a radially outer (40) and a radially inner (38) surface. An annular inner-tube (14) is securedly positioned between the inner wheel (12) and the first ring (16). A second ring (18) has a radially outer surface (46) and a radially inner surface (44) adapted to mate with first ring (16). A tread (20) is secured to radially outer surface (46) of said second ring (18).

Abstract: There is provided a device for installing traction chains about a dual wheel assembly. The device comprises an elongate member having a first end and a second end. A portion of the elongate member adjacent the first end has opposed planar surfaces and the elongate member is of sufficient length to extend from an outer side of the dual wheel assembly to an inner side of the dual wheel assembly. A first hook extends from the first end of the elongate member, the first hook has planar lateral side; a second hook extends from the second end of the elongate member; and a third hook extends from the elongate member, the third hook being disposed between the first hook and the second hook. The elongate member, the first hook, the second hook and the third hook comprising a rigid body.