Abstract: A dual section module with mass flow controllers, for processing wafers, includes: dual process sections integrated together; at least one mass flow controller (MFC) each shared by the dual process sections and provided in a gas line branching into two gas lines, at a branching point, connected to the respective interiors of the dual process sections and arranged symmetrically between the dual process sections; and at least one mass flow controller (MFC) each unshared by the dual process sections and provided in a gas line connected to the interior of each dual process section.

Abstract: Embodiments provided herein describe systems and method for processing substrates. A substrate is provided. A showerhead is positioned above the substrate. The showerhead includes a plurality of injection ports, at least one isolation channel, and at least one exhaust port on a bottom surface thereof. The at least one isolation channel separates the plurality of injection ports into two or more sections. The at least one exhaust port is positioned within the at least one isolation channel. The plurality of injection ports are not in fluid communication with the at least one exhaust port within the showerhead. At least one processing fluid is caused to be delivered from the plurality of injection ports onto the substrate. At least some of the at least one processing fluid is caused to be removed from the substrate through the at least one exhaust port.

Abstract: According to one embodiment, a gas supply pipe has a first gas pipe configured to blow a gas which has flowed from an inflow opening via first gas blow holes arranged along a longitudinal direction, and a second gas pipe provided in parallel with the first gas pipe. The second gas pipe has second gas blow holes arranged along the longitudinal direction, and allows the gas to flow in a direction opposite to the first gas pipe.

Abstract: Provided are a roll, a film forming apparatus, and a film forming method. The present invention provides a roll used in an apparatus which may transfer a substrate, e.g., a flexible substrate such as a plastic film and a fibrous or metallic web or film and may form a film on a surface of the substrate, a film forming apparatus including the roll, and a film forming method using the film forming apparatus.

Abstract: Electrically-conductive silver metal can be provided in a thin film or pattern on a substrate from a silver complex having reducing silver ions and represented by: wherein L represents an ?-oxy carboxylate; P represents a primary alkylamine compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2. The silver complex is mixed in a hydroxy-free, nitrile-containing aprotic solvent with a polymer that is either (i) a hydroxy-containing cellulosic polymer or (ii) a non-cellulosic acrylic polymer having a halo- or hydroxy-containing side chain. The reducible silver ions in the a thermally sensitive thin film or pattern can be thermally converted to electrically-conductive metallic silver under suitable heating conditions to provide a product article that can be used in various devices.

Abstract: A novel method of blackening surgical needles is disclosed. Surgical needles having outer surfaces are first placed into a first pretreatment bath having a novel composition. The needles are then placed into a second blackening bath having a novel composition for a sufficient period of time to effectively blacken the surfaces of the needles. The novel methods for blackening the surfaces of a stainless steel alloy surgical needle provide a chromium (VI)-free alternative to current needle manufacturing processes. Another unique feature of this novel method is its short processing time. The blackening processes of the present invention can be utilized for in-line treatment processes which can be easily incorporated into high speed needle manufacturing processes, such as strip mounted processes. In addition, the processes of the present invention are readily adaptable to batch processes. Also disclosed are novel systems for blackening surgical needles and novel blackening baths for surgical needles.

Abstract: A composite cell plate can include a polymer element laterally mated and interlocked, at a plurality of engagement points, with a resilient metal element. The cell plate can be used in an electrochemical cell. A method of forming a cell plate can include fitting a polymer element to a resilient metal element at a plurality of engagement points, and expanding the polymer of the polymer element such that the polymer element and the resilient metal element engage and interlock at the engagement points.

Abstract: A medical gas-liquid supply system including an electrolytic gas generator, a pure water supply device, a control unit, a first gas storing unit, a second gas storing unit and a gas output unit is provided. The control unit is electrically connected to the electrolytic gas generator for controlling the voltage value of the electrolytic gas generator and the type of gases generated by the electrolytic gas generator. The first and second gas storing units are communicated to the electrolytic gas generator for storing the first and second gases generated by the electrolytic gas generator respectively. The gas output unit is communicated to the first and second gas storing units and has first, second and third output ends for outputting the first gas, a mixed gas and the second gas respectively, in which the mixed gas includes the first and second gases.

Abstract: Multilayer porous membranes and methods for fabricating the membranes may have applications in filtration, separation, and nanomanufacturing. The layers of the membrane may be selected based on different physiochemical properties, such as ionization rate and/or etch rate. The pores may be formed by high energy particle bombardment and chemical etching. In some embodiments, the multilayer porous membrane may be utilized to form complex nanostructures by selecting different materials for the layers based on physiochemical properties, layer thickness, stacking sequence, and/or varying the pore generation process.

Abstract: The embodiments herein relate to methods and apparatus for electroplating one or more materials onto a substrate. Typically, the embodiments herein utilize a channeled plate positioned near the substrate, creating a cross flow manifold between the channeled plate and substrate, and on the sides by a flow confinement ring. A seal may be provided between the bottom surface of a substrate holder and the top surface of an element below the substrate holder (e.g., the flow confinement ring). During plating, fluid enters the cross flow manifold through channels in the channeled plate, and through a cross flow inlet, then exits at the cross flow exit, positioned opposite the cross flow inlet. The apparatus may switch between a sealed state and an unsealed state during electroplating, for example by lowering and lifting the substrate and substrate holder as appropriate to engage and disengage the seal.

Abstract: An electro-processing apparatus has a contact ring including a seal which is able to compensate for electric field distortions created by a notch (or other irregularity) on the wafer or work piece. The shape of the contact ring at the notch is changed, to reduce current crowding at the notch. The change in shape changes the resistance of the current path between a thief electrode and the wafer edge to increase thief electrode current drawn from the region of the notch. As a result, the wafer is plated with a film having more uniform thickness.

Abstract: The invention relates to a method for making nanopores in thin layers or monolayers of transition metal dichalcogenides that enables accurate and controllable formation of pore within those thin layer(s) with sub-nanometer precision.

Abstract: A method for producing single crystalline zinc oxide nanoparticles that is capable of mass production includes mixing, between processing surfaces which are disposed in a position facing each other so as to be able to approach and separate from each other and rotate relative to each other, a zinc oxide separating solvent prepared by homogeneously mixing an acidic substance with a solvent containing at least alcohol and a raw material solution obtained by mixing a zinc oxide nanoparticle raw material with a basic solvent or a raw material solution that is basic as a result of mixing and dissolving a zinc oxide nanoparticle raw material with and into a solvent, and discharging a mixed fluid in which zinc oxide nanoparticles have separated out from between the processing surfaces.

Abstract: In a rotating disk reactor for growing epitaxial layers on substrate or other CVD reactor system, gas directed toward the substrates at gas inlets at different radial distances from the axis of rotation of the disk has both substantially the same gas flow rate/velocity and substantially the same gas density at each inlet. The gas directed toward portions of the disk remote from the axis may include a higher concentration of a reactant gas than the gas directed toward portions of the disk close to the axis, so that portions of the substrate surfaces at different distances from the axis receive substantially the same amount of reactant gas per unit area, and a combination of carrier gases with different relative molecular weights at different radial distances from the axis of rotation are employed to substantially make equal the gas density in each region of the reactor.

Abstract: There is provided a substrate for crystal growth used for a vapor phase growth of a crystal, wherein a plurality of seed crystal substrates made of a group III nitride crystal are arranged in a disc shape, so that their main surfaces are parallel to each other and adjacent lateral surfaces are in contact with each other; and the plurality of seed crystal substrates constituting at least a portion other than a peripheral portion of the substrate for crystal growth respectively has a main surface whose planar shape is a regular hexagon, and a honeycomb pattern obtained by matching the seed crystal substrates has two or more symmetries, when the substrate for crystal growth is rotated once, with an axis passing through a center of a main surface of the substrate for crystal growth and orthogonal to the main surface as a central axis.

Abstract: A system for incorporating ferromagnetic materials into several microwave application is described. The system employs a multi-layer substrate. A substrate for receiving microwave signals uses a base layer which has tunable elements and a nanofiber layer which uses magnetic nanotubes. The nanofibers have a high aspect ratio and the nanofiber layer is embedded in the base layer.

Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and shows 1000 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 5 cN/dtex in accordance with JIS L-1095.

Abstract: The invention concerns a radiation protective material, which comprises a fibrous material with composite filaments including a radiopaque substance. The filaments are structured in a regular pattern to form the radiation shielding material.

Abstract: The present invention pertains to a process for manufacturing one or more fluoropolymer fibers, said process comprising the following steps: (i) providing a liquid composition [composition (C1)] comprising: —at least one fluoropolymer comprising at least one hydroxyl end group [polymer (FOH)L and —a liquid medium comprising at least one organic solvent [solvent (S)]; (ii) contacting the composition (C1) provided in step (i) with at least one metal compound [compound (M)] of formula (I) here below: X4?mAYm (I) wherein X is a hydrocarbon group, optionally comprising one or more functional groups, m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, and Y is a hydrolysable group selected from the group consisting of an alkoxy group, an acyloxy group and a hydroxyl group, thereby providing a liquid composition [composition (C2)]; (iii) submitting to at least partial hydrolysis and/or polycondensation the composition (C2) provided in step (ii) thereby providing a liquid co

Abstract: A dipped and heat-set high modulus nylon 6.6 cords having a tensile stress value between 1.2 and 2.0 cN/dtex at 4% elongation. The high modulus nylon 6.6 cords are used as reinforcement in shaped rubber composites. The minimum heat shrinkage of the cords is 4% and the maximum heat shrinkage thereof is 7%.

Abstract: A fiber preform is formed by a fiber structure woven by three-dimensional weaving with a plurality of layers of warp yarns interlinked by weft yarns of a plurality of layers of weft yarns, the fiber preform having a first portion and a second portion that extend one another in the weft direction and that are at an angle to each other. In the fold zone and in each weft plane of the fiber structure, two weft yarns situated in a region adjacent to an outside face of the fiber structure situated on the inside of the corner present paths that cross, so that less curvature is imposed on these yarns.

Abstract: An article of footwear has an upper that includes a knitted component and a sole structure secured to the upper. The knitted component may define a tube formed of unitary knit construction, and a strand may extend through a length of the tube. As another example, the knitted component may have a pair of at least partially coextensive knitted layers formed of unitary knit construction, and a plurality of floating yarns may extend between the knitted layers. In some configurations, the knit type or yarn type may vary in different regions of the knitted component to impart different properties. Additionally, the knitted component may incorporate a thermoplastic yarn that is fused in different regions of the knitted component to impart different properties. A flat knitting process or a variety of other knitting processes may be utilized to form the knitted component.

Abstract: An integrally woven or knitted textile, such as a tubular graft or sheet, having a base textile layer, in the case of a graft, it has at least one longitudinal tubular graft portion, and at least one pouch or flap integrally woven from at least a portion of the same set of yarns. Methods of making the same are also disclosed.

Abstract: A slider spring for a slider used with a slider needle of a loop-forming textile machine includes a closing section for closing a hook opening of the slider needle, a connection section for connecting to a slider body, and a guide section for guiding the slider at a needle body. The slide spring includes at least one bead with a concave bead interior and a convex bead exterior. The slider spring is shaped and configured to be stacked against at least one other slider spring such that the convex bead exterior of the slider spring fits completely within the respective concave bead interior of the at least one other slider spring. A slider for a slider needle includes first and second slider springs as described. A slider needle includes a slider displaceable in a needle longitudinal direction relative to a needle body for opening or closing a hook opening.

Abstract: An apparatus for stitching an interior component is disclosed herein. The component having an outer skin layer and the apparatus is a single needle chain stitch machine with a rotary looper and wherein a needle of the apparatus descends through the interior component and a hook of the rotary looper engages a thread loop formed during retraction of the needle after it has descended through the interior component; and wherein the apparatus further includes a mechanism for moving the interior component relative to the needle and looper to establish a stitch length.

Abstract: The present invention relates to an operation method of a washing machine for controlling the rotation of a pulsator to enhance cleaning performance, there is provided a method of operating a washing machine having a pulsator rotatably provided in a tub, and the method may include a first cleaning mode having a first process of rotating the pulsator in one direction at a first angle and then rotating it in the other direction at a second angle around the rotation shaft; and a second process of rotating the pulsator in the one direction at a third angle and then rotating it in the other direction at a fourth angle around the rotation shaft, wherein the first angle is greater than the third angle, and the second angle is greater than the fourth angle, and the second angle is greater than the third angle.

Abstract: A washing machine and a method of controlling the washing machine is provided. The method may include supplying water to a tub, treating laundry by rotating a basket provided in the tub, and discharging water in the tub, wherein discharging the water includes rotating the basket during the water discharge so as to wash a filter, which may be provided between the tub and an opening formed in a lower portion of the basket, using a water stream.

Abstract: A laundry treatment apparatus includes a tub body for receiving water, a tub cover that covers an upper surface of the tub body and that defines an introduction aperture, a drum located inside the tub body for receiving laundry, a door for opening and closing the introduction aperture, a hinge that rotatably couples the door to the tub cover, a fixing unit that releasably couples a portion of the door to the tub cover, and a sealing unit on the door or the introduction aperture that is configured to seal the introduction aperture based on the introduction aperture being closed by the door. A portion of the sealing unit located in a direction in which the fixing unit is provided has a different diameter from a diameter of a portion of the sealing unit that is located in a direction in which the hinge is provided.

Abstract: A laundry treating appliance comprises a rotatable basket with a spin tube, a rotatable clothes mover located within the rotatable basket, a motor having a drive shaft extending through the spin tube and operably coupled to the clothes mover, and a drive system selectively rotatably coupling the spin tube and the drive shaft and comprising a first threaded ring located about the spin tube, a second threaded ring threaded about the first threaded ring wherein at least one of the first threaded ring and the second threaded ring is axially movable relative to the other, and a gear assembly rotationally coupled to the drive shaft.

Abstract: A method of removing lint from drying air in a laundry treating appliance having a treating chamber for holding clothes for treatment according to a cycle of operation, a treating chemistry dispenser fluidly coupled to the treating chamber, and an air supply having an inlet and outlet fluidly coupled to the treating chamber is disclosed. The method includes a laundry treating phase including supplying treating chemistry from the treating chemistry dispenser to the treating chamber and leaving a portion of the treating chemistry within the treating chamber to form a bath of treating chemistry, a laundry drying phase including supplying air to the treating chamber through the inlet and exhausting the supplied air from the treating chamber.

Abstract: The invention relates to a system (1) for a garment care device (20, 25) comprising a steam generator (7). The system (1) comprises a pressurization unit (2). The pressurization unit (2) comprises a chamber (3) for receiving water from a water supply system (5) and for delivering the received water towards the steam generator (7), and an actuator (8) cooperating with a retention member (9). The actuator (8) is adapted to displace and load the retention member (9) when water is received in the chamber (3). The retention member (9) is adapted to unload and apply a force to the actuator (8) after water has been received in the chamber (3) to pressurize water received in the chamber (3). The retention member (9) has a stiffness coefficient that varies as a function of displacement of the actuator (8). This invention allows that the flow of pressurized water from the chamber to the steam generator is more purposively controlled so that a given desired steam profile can be generated.

Abstract: A method is described for reducing the afterflame of a flammable, meltable material. A textile composite is described comprising an outer textile comprising a flammable, meltable material, and a heat reactive material comprising a polymer resin-expandable graphite mixture.

Abstract: A rope including a yarn twisted by using a raw thread of a polyethylene fiber having an ultrahigh molecular weight and a strand twisted by the yarn and subjected to rope-making through the strand, and a resin coating layer for protecting the rope is formed on an external surface of the yarn, an external surface of the strand or an external surface of the rope. A method of manufacturing the rope includes a pretreating step I of removing an oil content contained in the rope and performing an affinity enhancing treatment over a surface thereof and a resin coating step II of forming a resin coating layer for protecting the rope on an external surface of the yarn, an external surface of the strand or an external surface of the rope. The resin coating layer for protecting the rope is formed.

Abstract: A method is provided for manufacturing at least first and second assemblies of M1 filamentary elements and M2 filamentary elements. At least one of the first and second assemblies includes a plurality of filamentary elements wound together in a helix. The method includes a step of assembling M filamentary elements together into a layer of the M filamentary elements around a temporary core, to form a temporary assembly. The method also includes a step of splitting the temporary assembly into at least the first and second assemblies of M1 filamentary elements and M2 filamentary elements.

Abstract: A below-web dust hood for a papermaking system. The hood body has the general shape of a tapering trapezoidal pyramid, taller at one end than the other. The inlet of the hood body tapers inversely in height—broader where the hood body is shorter, and narrower where the hood body is taller in order to maintain uniform flow across the entire inlet.

Abstract: A dust hood for a papermaking system. The hood body has a roof and depending long sidewalls. An inlet extends substantially the entirety of each of the long sidewalls. The hood includes an outlet at one end. The roof is peaked and reaches a peak line. The hood may be positioned at or near floor level and used with air ramps that drive dust toward the inlets.

Abstract: The present invention provides methods for producing exfoliated clay platelets from a swellable clay material. In embodiments, the method for producing exfoliated clay platelets includes providing an exfoliating agent comprising an anionic extractant, and exposing the swellable clay material to the exfoliating agent, wherein the exfoliating agent produces exfoliated clay platelets from the swellable clay material. Methods for treating paper precursors and paper sheets are also disclosed, as are paper products formed from such paper precursors or paper sheets.

Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.

Abstract: A pavement repair system is provided utilizing solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The system is suitable for use in repairing asphalt pavement, including pavement exhibiting a high degree of deterioration (as manifested in the presence of potholes, cracks, ruts, or the like) as well as pavement that has been subject to previous repair and may comprise a substantial amount of dirt and other debris (e.g., chipped road paint or other damaged or disturbed surfacing materials). A system utilizing homogenization by liquid asphalt oligopolymerization is suitable for rejuvenating or repairing aged asphalt, thereby improving properties of the paving material.

Abstract: A method of forming a pavement construction joint that involves dispensing a band of a void reducing joint composition on a substrate using at least one spray application vehicle, wherein the band comprises a width of about 4 to about 24 inches. A paving pass is applied over the band of joint composition, wherein the paving pass is positioned against an edge of a previously laid portion of pavement to form a pavement construction joint having a volume of air voids. At least a portion of the joint composition migrates upward to reduce the volume of air voids. The composition is resistant to flow when applied and migrates into hot mix asphalt in the area of the longitudinal joint to reduce air voids to 7% or less and reduce water permeability. The composition becomes tack-free quickly after application. The composition bonds to asphalt, concrete, brick, stone and metal.

Abstract: A rotor assembly for a cold planer is disclosed. The rotor assembly may include a rotor chamber that is configured to house a milling drum, and the milling drum may be configured to rotate within the rotor chamber. The rotor assembly may further include a plate movably coupled to the rotor chamber and an upper pulley wheel rotatably mounted to the plate. Furthermore, a lower pulley wheel may be rotatably mounted to the rotor chamber and the lower pulley wheel may be operably coupled to the milling drum such that the lower pulley wheel and the milling drum synchronously rotate. The rotor assembly may further include an actuating mechanism operably coupled to the plate, and the actuating mechanism may be configured to move the plate and the upper pulley wheel between an operation position and a transport position.

Abstract: An apparatus is for constructing a guide line for a road. The apparatus includes a painting apparatus part that stores a lane paint, is driven by receiving power, and supplies the lane paint. A nozzle part is installed in the painting apparatus part and sprays the lane paint supplied from the painting apparatus part on a road to form a guide line for a road including at least one of a directional mark and a lane. An adjustment part is installed in the painting apparatus part and adjusts at least one of a location and an interval of the lane paint sprayed from the nozzle part.

Abstract: Apparatus positioned at a guardrail lead end portion for absorbing energy resulting from vehicle impact includes an impact terminal, a support structure supporting the impact terminal at or adjacent to a lead end portion of the guardrail and a chute. The guardrail is in frictional engagement with inner chute surfaces and the chute applies torquing forces on the guardrail during passage of the guardrail through the chute to cause twisting of the guardrail and absorb vehicle collision impact energy.

Abstract: A pet excrement collection apparatus for handsfree waste pickup includes a handle and a hollow extension pole coupled to the handle. A trigger is coupled to the handle and is coupled to a jaw rod extending through the extension pole and out a jaw rod aperture between a forked distal end of the extension pole. A pair of arms is coupled to the distal end, each having a toothed rotator wheel engaged with a plurality of jaw rod teeth of the jaw rod. A waste bag is coupled to a bag frame and a pair of bag rods. A pair of bag rod receptacle mechanisms is coupled to each of the pair of arms and selectively receives the pair of bag rods. A release mechanism engages a release end of the pair of bag rods and alternatively releases the pair of bag rods when activated by a bag eject lever.

Abstract: The invention relates to a system for inductive power transfer to vehicles driving or standing on a surface of a route, in particular to road automobiles, wherein the system includes a primary winding structure for generating an alternating electromagnetic field, wherein a field volume (FV) is assigned to the primary winding structure, wherein the system includes at least a part of a first heating system, wherein elements of the first heating system which are arranged within the field volume (FV) are non-metallic elements. Further, the invention relates to a pavement slab assembly and a method of operating a system for inductive power transfer.

Abstract: A method and apparatus for coupling a jacket with a foundation pile, comprising mounting a first flange with the jacket, contacting a second flange with the foundation pile such that the second flange is supported by the foundation pile, mutually positioning the first flange and the second flange such that the jacket may be supported by the pile through the first flange and the second flange, arranging an inflatable spacing member between the first flange and second flange such that the spacing member contacts both the first flange and second flange for supporting the jacket through the spacing member and inflating the spacing member for increasing a spacing between the first flange and second flange.

Abstract: The Open End Friction Pile comprises of four steel plates, four brackets, and one driving head. The steel plates have a first bend line and a second bend line that are equidistant from a distal end. The first bend line and second bend line of the steel plates are equidistant from each other creating a center portion. The brackets have a first bend line and a second bend line that are equidistant from a distal end. The first bend line and second bend line of the brackets are equidistant from each other creating a center portion. The bracket has a third bend line along the center portion. One bracket is connected to one steel plate along the distal ends and center portion. All four steel plates and four brackets concurrently connect along the distal ends to form two open-ends. A driving head is connected covering the top open-end.

Abstract: A stake assembly provides an earth anchor and includes a stake having a longitudinal axis and an upper portion and a lower portion. The stake is attached to a cup having a sidewall defining a closed perimeter and a top wall substantially closing the sidewall, the sidewall having an open bottom end. The stake passes through the top wall with the upper portion above the top wall and the lower portion below the top wall. When the stake is pounded or screwed into the ground the cup captures soil which adds resistance to the stake being removed from the ground. One embodiment has the cup at an oblique angle to the top wall.

Abstract: Foundation footing system for a load-bearing structure comprising a hole in the ground and a post in the hole extending above the hole. A gap present between the sides of the post and the sides of the hole contains a cured, hydrophobic, closed-cell, polyurethane foam to firmly hold the post in place and protect the post from moisture. Alternatively, a foundation footing system for a load-bearing structure comprising a hole in the ground filled with a cured, hydrophobic, closed-cell, polyurethane foam and a post place on and connected to the top of the foam.

Abstract: A bracket assembly for coupling an implement to an arm of a machine includes a bracket with a plate and a bushing. The plate includes an opening having an inner wall including a number of engagement structures arranged along an axial direction of the opening. The engagement structures are longitudinally spaced apart from each other. The bushing is adapted to be inserted and positioned into the opening. The bushing includes a cylindrical portion with an outer surface, an end, and a plurality of mating structures arranged on the outer surface, along an axial direction of the cylindrical portion. The mating structures are longitudinally spaced apart from each other. An engagement between the engagement structures and the mating structures facilitate multiple positions of the end relative to the plate.