Abstract: The present invention relates to improved contact lens products which not only have initial insertion comfort. The contact lens product of the invention comprises a soft hydrogel contact lens immersed and autoclaved in a packaging solution including a low molecular weight polyethylene glycol (PEG) (or glycerin) and a homopolymer or copolymer of vinylpyrrolidone. The present invention also provides methods for making contact lens products of the invention.

Abstract: A recliner or other article of sitting furniture having an assembled configuration and a disassembled configuration, said disassembled configuration including storage cavities in at least one of an arm portion, a seat cavity, a back portion, and combinations thereof, where any of said cavities are used to optimize storage volume in said disassembled configuration and a method of shipping a recliner in said disassembled configuration.

Abstract: A support structure for a sealable plastic bag, the structure comprises a receptacle having a top and a bottom, the bottom of the receptacle adapted to contact a surface so that the receptacle is capable of standing in an upright position, the top of the receptacle comprising an elliptically-shaped opening, the elliptically-shaped opening being defined by a rim of the receptacle and having two opposing narrower ends at the rim; the rim of the elliptically-shaped opening having at least two notches, wherein one of the said two notches is disposed at the first of the two narrower ends of the elliptically-shaped opening, and wherein a second of the said two notches is disposed at the second of the two narrower ends of the elliptically-shaped opening in the receptacle. A method of filling a sealable plastic bag utilizing the support structure is also disclosed.

Abstract: A method and system for packaging products provides for initially, vertically stacking a plurality of products during production in a transfer canister, simultaneously removing a stack of the products from the transfer canister, reorienting the stack and horizontally loading the stack into a final product package cavity. The invention has applicability to a wide range of products, particularly food products, such as refrigerated dough products. In one embodiment of the invention, the product package cavity is thermoformed as part as an overall horizontal form, fill and seal system.

Abstract: A product includes a closure having a radially inner portion, and being removably securable to a container, and a pendant releasably coupled to the radially inner portion of the closure, and being releasable from the closure into the container upon removal of the closure from the container. A package may include the product and a container, wherein the closure is removably secured to a neck of the container to removably close the container, and the pendant is suspended from the closure in an interior of the container neck, such that when the closure is removed from the container, the pendant releases from the closure and drops into the container and is non-removably carried therein to provide an indication that the package has been opened from its original factory sealed condition.

Abstract: The present disclosure relates to methods and systems for labeling trial study materials. The method, in some embodiments comprises the steps of providing bulk supplies to one or more study supply depots, receiving one or more requests for at least one study test kit at the one or more study supply depots, packaging the bulk supplies into one or more study test kit components, printing at least two different study supply label types on a single label sheet, affixing the at least two different study supply label types to the study test kit components, packaging the study test kit components into at least one study test kit; and shipping the at least one study test kit to a trial site.

Abstract: Methods and systems for grouping, recovering, and processing ice and water derived therefrom obtained from an ice source, i.e., a glacier, ice sheet, ice cap, etc., are described herein, and in particular, the conveyance thereof in a non-rigid, water-impermeable device, to facilitate water derived from the ice, having specific characteristics, to be traded, stored, conveyed, or transported according to its specific characteristics.

Abstract: A method and opener for creating openings in the sidewalls of bead seam containers, such as a pop-top can, to allow air to enter the container when the contents are poured is formed to include a mounting body (140). A seam engagement element (150) sized and shaped to fit the bead seam of a container and a piercing element (152) sufficient to pierce the sidewall of the container are positioned a predetermined distance from each other and in physical association with the mounting body (140) to pierce above the fill level of the container. The bead seam of a container may be inserted into the engagement element (150) creating a fulcrum, then rotated to engage the piercing element (152) to form an opening for air to enter the container when it is poured. These means may be mounted for stationary use (134) or have a handle attached (102) for portability.

Abstract: A composite pad for a saddle panel includes a first panel having a first firmness property and a second panel having a second firmness property that is different from the first panel firmness property. The first and second panels are configured whereby the first panel substantially nests in a cavity defined in the second panel. The second panel firmness is typically less than the first panel firmness, whereby in use the assembled composite pad the softer second panel will contact the back of an animal wearing the saddle. Saddle panels and saddles incorporating the composite pad of the disclosure are described.

Abstract: One embodiment of the present disclosure is a unique particle separator. Another embodiment is a unique aircraft. Another embodiment is a unique inertial particle separator. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for aircraft, engines and particle separators for aircraft and engines. Further embodiments, forms, features, aspects, benefits, and advantages of the present disclosure will become apparent from the description and figures provided herewith.

Abstract: A cyclone comprises a cyclone chamber having an air inlet, an air outlet, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, the first end wall has a vortex finder having a wall that meets the first end wall at a second juncture, wherein the inlet is spaced from the vortex finder

Abstract: A cyclone comprises a cyclone chamber having an air inlet, an air outlet, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, wherein the first juncture downstream of the inlet is configured to at least approximate a portion of the shape of the air inlet that is adjacent the first juncture.

Abstract: A filter unit comprising a filter bag for removing particles from an air or gas flow, wherein the filter unit is arranged to receive at least one filter pocket and the filter bag comprises an opening portion and an end portion opposite said opening portion. The filter unit further comprises a frame arranged at a periphery of the opening portion, and a support structure arranged at the periphery of the end portion for stretching an area of the end portion. The frame and the support structure act to stretch the filter bag into a substantially parallelepiped shape such that the filter unit is arranged to provide a free passage for the at least one 140 filter pocket into and out of said filter bag. Furthermore, the filter unit is arranged to fold between the frame and the support structure into a folded state.

Abstract: An air filter and dust collector are provided. In one embodiment, the air filter includes a filter element coupled at a first end to a end cap and at a second end to a first side of a rectangular filter flange assembly. The rectangular filter flange assembly includes a central aperture open to an interior region bounded by the filter element. A rectangular gasket is disposed on the second side of the filter flange assembly and circumscribes the central aperture.

Abstract: Air cleaner assemblies and components therefor are described. An example first or main filter cartridge is described which includes a media pack comprising strips of fluted material secured to facing sheets, oriented in a stack. The media pack defines opposite inlet and outlet flow faces, with flutes extending in a direction therebetween. The media pack is non-removably secured within a filter cartridge housing, at a location between opposite sections of a shell, typically secured thereto with an adhesive. The shell also defines a closed end, spaced from, but in overlap with, the outlet end face of the media pack. The closed end is typically curved and the shell typically provides either a d/b-shape or a u-shape. The filter includes an end member, with a outlet flow aperture arrangement therein, allowing for outlet flow from the filter cartridge in a general direction orthogonal to air flow through the media pack.

Abstract: A filter element is provided for an air filter assembly of an internal combustion engine including a breather conduit and an intake conduit. The filter element includes a first wall, a second wall, filter media extending between the first and second walls, a first aperture in one of the first and second walls configured to receive air from the breather conduit, and a second aperture in one of the first and second walls configured to deliver air to the intake conduit. The filter media, the first wall, and the second wall define an interior chamber of the filter element. The first and second apertures connect to the interior chamber such that air filtered by the filter media mixes with unfiltered gases provided through the first aperture by the breather conduit prior to exiting the interior chamber through the second aperture into the intake conduit.

Abstract: A gas separator for removing contaminants from a crankcase gas which is produced during operation of an internal combustion engine includes a centrifugal rotor with a plurality of separation discs for separating the contaminants from the crankcase gas, the centrifugal rotor being arranged inside a stationary rotor housing having a gas inlet for conducting crankcase gas to the centrifugal rotor and a gas outlet for discharging the cleaned crankcase gas from the centrifugal rotor, and an electric motor which is arranged for rotation of the centrifugal rotor about a rotational axis, and A gear device is arranged between the electric motor and the centrifugal rotor, the gear device having a gear ratio arranged to increase the rotational speed of the centrifugal rotor in relation to the electric motor.

Abstract: An air dryer includes first and second flow paths. Each flow path includes a check valve that prevents fluid flow into the flow path and an exhaust valve having an open position that permits fluid flow out of the flow path and a shut position that prevents fluid flow out of the flow path. A diverter valve has a first position that provides fluid communication to the first flow path and a second position that provides fluid communication to the second flow path. An interlock operably connected to the diverter valve and the exhaust valves prevents positioning the diverter valve to the first position when the exhaust valve in the first flow path is in the open position and prevents positioning the diverter valve to the second position when the exhaust valve in the second flow path is in the open position.

Abstract: Rotor suspension device in a centrifugal separator (10) for cleaning a flow of gas from particles contained therein. The rotor (14) is rotatably supported in a cantilevered manner at one of its ends in a stationary casing (12) by means of a bearing sleeve (40) resiliently connected to the casing (12) by means of an elastic member (46) configured to counteract shearing and tilting movements of the supported end of the drive shaft (25) of the rotor during operation such that the free end of the rotor has a substantially fixed position relative to an upper passage (32) of the casing (12) through which the rotor top extends.

Abstract: A cyclone comprises a cyclone chamber having an air inlet, a vortex finder, a first end wall, a second end wall and a sidewall, the air inlet has an inlet end having a shape and a cross sectional area in a plane transverse to a direction of airflow through the air inlet, and the air inlet is provided at a first juncture of the sidewall and the first end wall, the vortex finder has a wall that meets one of the first and second end walls at a second juncture, wherein the second juncture extends at an angle to both the wall of the vortex finder and the end wall on which the vortex finder is provided.

Abstract: A cyclone comprises a cyclone chamber having a first end having a first end wall, a second end having a second end wall, a sidewall, an air inlet at the first end, an air outlet and a first central insert member extending away from a center of the second end wall into the cyclone chamber wherein the first central insert member comprises a central member wall extending away from the second end wall and the central member wall and the second end wall meet at a first juncture that extends at an angle to both the central member wall and the second end wall

Abstract: A filter arrangement for a system within which fluid is filtered and an associated method of providing the arrangement. A frame of the arrangement includes an outer periphery shape that is complementary to a shape for location of the filter arrangement therein and a plurality of filter cartridge seat slots arranged in V-shaped pairs. Each filter cartridge seat slot provides a sub-aperture for removably receiving a respective filter cartridge in a direction transverse to the flow proceeding through the sub-aperture. The filter arrangement includes a plurality of filter cartridges that are removably located within respective filter cartridge seat slots. The filter arrangement includes a non-permanent sealing arrangement between the filter cartridges and the frame so that flow does not by-pass filter media. The non-permanent arrangement permits removal of the filter cartridges from the frame and replacement with new filter cartridges upon the frame.

Abstract: A collapsible air cleaner filter is provided. The filter includes a pleated media filter having a first end, a second end, and a filter media extending between the first and second ends, wherein the filter media includes a first plurality of flexible end portions and a second plurality of flexible end portions, the first and second plurality of flexible end portions are separated by a plurality of pleats, and the filter media extends a first length between the first and second plurality of flexible end portions, and an end member coupled to the first end of the pleated media filter, the end member extending a second length parallel to the first length, the first length being greater than the second length.

Abstract: A bi-component fiber is provided. The bi-component fiber includes a sheath formed of polyphenylene sulfide (PPS) and a core formed of a high glass transition polyester. A PPS material of the sheath has a higher melting point than a high glass transition polyester material of the core. The core is at least partially crystallized whereby the high glass transition polyester material of the core effectively has a higher softening point than a softening point of the PPS material of the sheath.

Abstract: An assist handle for assisting an operator with climbing on to, or off of, a ground maintenance vehicle such as a mower, and a ground maintenance vehicle incorporating the same. The assist handle includes, in one embodiment, a grip portion movable between a deployed position, wherein the grip portion is positioned at a deployed elevation configured to assist the operator with ingress to, or egress from, a platform such as a seat; and a stowed position, wherein the grip portion is positioned at a stowed elevation lower than the deployed elevation.

Abstract: An agricultural harvester (100) comprises a self-propelled vehicle (102); a feederhouse (104); a driveshaft (114) supported on the feederhouse (104), the driveshaft (114) having a first coupler (116) fixed to one end of the driveshaft (114), the first coupler (116) comprising a coupler body (420), a piston (416) disposed in the coupler body (420), and a first key (302) mechanically coupled to the piston (416) to be extended or retracted by the piston (416) to engage a mating coupler on a second driveshaft (120) of an agricultural harvesting head (106) that is supported on the feederhouse (104).

Abstract: An agricultural harvester (100) comprises a self-propelled vehicle (102); a feederhouse (104) disposed on the front of the self-propelled vehicle (102); a driveshaft (114), the driveshaft (114) having a proximal end supported for rotation on the feederhouse (104) about an axis of rotation, the driveshaft (114) having a distal end that is extendable from the proximal end; and a first coupler (116) fixed to the distal end, said first coupler (116) being configured for engagement with a second coupler (118), said second coupler (118) being disposed on an agricultural harvesting head (106) to drive a reciprocating knife of the agricultural harvesting head (106).

Abstract: A front end mounted rotary hay rake having a plurality of finger wheel rotary raking elements mounted on a frame and movable thereon from one to the other of a raking position to rake material on the ground into a windrow and a retracted raised traveling position. The frame is partly supported by a pair of caster wheel assemblies that are disposed in spaced apart relation with respect to one another and a distal end of the frame which connects securely to a front end loader mounted on a tractor. Oscillatory movement of the caster wheel assemblies is restrained by a brake acting on the shaft of the caster wheel assembly by which it is mounted on the frame. The frame of the rake is pivotally mounted to the front end of the loader. A rotary type rake having a plurality of finger wheel rotary raking elements mounted on a frame and movable thereon from one to the other of a raking position to rake material on the ground into a windrow and a retracted raised traveling position.

Abstract: A ride-on lawn mower includes a traveling vehicle body including an operator's seat, and a wheel post for supporting a steering wheel mounted forward of the operator's seat. The lawn mower further includes a mower apparatus connected to a front part of the traveling vehicle body, a roll-over protective structure mounted in a rear part of the operator's seat, and a front guard extending upward from the wheel post and forward of the steering wheel.

Abstract: A corn harvesting header comprises a knife bar extending along a front lower edge of a cutting header, with triangular knife sections attached along the bar and a plurality of guards with guard fingers extending forward. Pointed divider pans extend forward from the header such that a slot is formed between adjacent pans. A mounting bracket extends down from a rear of each pan and is attached to forward end portions of a pair of adjacent guard fingers, leaving rear portions of these guard fingers exposed. The divider pans are attached to alternating pairs of guard fingers such that a pair of bare guard fingers extends forward under and laterally adjacent to edges of each slot. The bottom surface of each seed pan is above the guard fingers an elevated distance that is greater than a spacing distance between the guard fingers. The header cuts the corn rows at angle.

Abstract: A corn head assembly for a combine harvester capable of preventing or inhibiting grain from sliding off a row unit without inhibiting crop flow is disclosed. The corn head assembly is attached to a combine harvester for harvesting crop material. The corn head assembly includes a frame, a conveyor and a plurality of row units. Each row unit includes a catch plate for facingly engaging a flow of crop material and includes a facing surface having a nonplanar geometry. The nonplanar geometry is at least one of corrugations, scales, waves, chevron-shaped corrugations, weld beads, rods, and terraces.

Abstract: A grain conveyor for a combine harvester capable of increasing capacity and reducing component wear is disclosed. The grain conveyor includes a grain elevator, a transition chamber and an auger assembly. The grain elevator has an inlet for receiving a flow of grain. The transition chamber includes an inlet and an outlet in fluid communication with the transition chamber inlet and the grain elevator inlet. The transition chamber outlet has an asymmetric non-circular opening larger than the non-cylindrical opening of the transition chamber inlet. The auger assembly is operatively connected to the transition chamber and includes an inlet for receiving a flow of grain and an outlet in fluid communication with the transition chamber inlet.

Abstract: A conveyor region border for an agricultural harvester, in particular a forage harvester, having a conveyor surface. This invention effectively protects such a conveyor region border against wear because wear protection elements are arranged on the conveyor surface in a mutually spaced manner, and the wear protection elements have a support part connected to the conveyor surface and a hard-material element directly or indirectly connected to the support part.

Abstract: A harvesting header (100) comprises a frame (101) having a rear aperture (138). Crop is harvested and fed towards and through the rear aperture (138). A conveyor drum (136) is mounted above and in front of the rear aperture (138). The conveyor drum (136) has a cylindrical section (144) and frusto-conical end sections (148) on both ends of the cylindrical section (144). Retractable fingers (146) extend outwards from the cylindrical section (144) and from each frusto-conical end section (148). The retractable fingers (146) extending from the frusto-conical end sections (148) are angled towards the side.

Abstract: A draper platform (100) for mounting on a feederhouse of an agricultural combine comprises an elongate reciprocating knife assembly (140) at a forward edge of the draper platform (100). A left side endless belt conveyor (116) is disposed behind the reciprocating knife assembly on the left side of the draper platform (100) and a right side endless belt conveyor (120) is disposed behind the elongate reciprocating knife assembly (140) on the right side of the draper platform (100). A center endless belt conveyor (118) carries the cut crop material rearward towards a central rear aperture (138) in the frame (101). A conveyor drum (136) is mounted above and in front of the central rear aperture (138). Conveyor members (150, 152, 164, 165) are located at crop transition zones (154, 156) between the left side endless belt conveyor (116), and the conveyor drum (136), and between the right side endless belt conveyor (120) and the conveyor drum (136).

Abstract: An agricultural machine suitable for the harvesting of crops, equipped with a height-adjustable feeder which at its rear side is linked to the machine and to which on its front side a header for crops can be attached, and wherein the machine is equipped with one or more lifting devices equipped with a lifting cylinder which exerts force on a beam-shaped element that is connected with hinges to the feeder in a hinge point on the front of the feeder, and wherein the cylinder exerts force on the beam-shaped element at a point located further back with respect to the hinge point.

Abstract: The present invention relates to a conveyor system that may be used with an agricultural harvester, such as a round baler, waste baler, combine, sugarcane harvester or cotton harvester. More particularly, the conveyor system utilizes at least a first and a second conveyor belt of which at least one of the conveyor belts is independently movable in the forward and backward directions. The speed and direction of the conveyor belts can be controlled to optimize continuous baling of harvested crop in the agricultural baler.

Abstract: Reversing mechanism for an agricultural baler wherein the reversing mechanism comprises a driving pulley mounted for rotation together with the conveying elements provided to be connected to the axis such that the axis and the conveying elements can be rotated along the working direction by a driving belt engaging the driving pulley.

Abstract: A hybrid cord formed from a plurality of component plies wherein at least one of the plies has a length that is from 1 to 50 percent longer than the other plies and a method of providing a cord with predetermined twist and component ply lengths.

Abstract: The invention relates to a device for producing knitted fabric comprising a knitting machine and at least one roving drawing and strengthening unit. The at least one roving drawing and strengthening unit has a roving supply unit, by means of which a roving can be provided in the form of a fiber bundle that has not been strengthened, a stretching unit, to which the roving can be fed in a roving conveying direction in the form of at least one sliver, and a spinning nozzle device, by means of which compressed air can he applied to a drawn roving exiting the stretching unit in a fiber strengthening segment. The invention further relates to methods for producing knitted fabric by means of a knitting machine and at least one roving drawing and strengthening unit.

Abstract: The invention relates to a spinning unit of the air-jet spinning machine, which serves the purpose of producing a yarn (2) from a fiber composite (3), whereas the spinning unit (1) possesses a spinning nozzle (4) with a vortex chamber (6) featuring an inlet opening (5) for the fiber composite (3), whereas the spinning unit (1) features air jets (21) directed into the vortex chamber (6), which flow into the vortex chamber (6) in the area of a wall (7) surrounding the vortex chamber (6) and through which air jets, during operation of the spinning unit (1), compressed air can be introduced into the vortex chamber (6) in a given direction of rotation, in order to confer upon the fiber composite (3) a rotation in the specified direction of rotation, and whereas the air jets (21) are connected to a source of compressed air (9) with the assistance of at least one fluid connection (8).

Abstract: A slag discharge system that includes: a gasification furnace which thermally decomposes and gasifies a pulverized raw material composed of a carbonaceous solid; a slag hopper which is provided at a bottom portion of the gasification furnace and receives slag produced from the pulverized raw material and in which cooling water is stored; a lock hopper which temporarily stores the slag outside of the gasification furnace; and a slag discharge line which makes the slag hopper communicate with the lock hopper. The lock hopper is disposed to the side of the gasification furnace, and the slag discharge system is provided with a water flow forming apparatus for forming a flow of the cooling water which allows the slag to be led to the lock hopper in the slag discharge line.

Abstract: A variable geometry mechanism suitable for use in a gas turbine engine is disclosed in which movable vane segments which are coupled to a rotatable ring, or rings, are used to change an aerodynamic property of a working fluid flowing through the gas turbine engine. The movable vane segments can be rotated through the ring, or rings, between a first position associated with the first vane and a second position associated with a second vane to place the movable vane segments in proximity to one or the other of the first and second vanes of the gas turbine engine. The movable vane segments can be used to alter, among other things, camber, exit flow area, and can be used to influence and/or accommodate such properties as incidence angle, and swirl angle.

Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.

Abstract: The combustor has a laser ignitor mounted to the casing, remotely from the liner of the combustion chamber. The laser ignitor has an igniter beam path for igniting the fuel and air mixture in the combustion chamber, the igniter beam path extending at least partially across the air plenum surrounding the liner and into the combustion chamber through a corresponding beam path aperture provided in the liner.

Abstract: A gas turbine engine includes a core engine that has at least a compressor section, a combustor section and a turbine section disposed along a central axis. A fan is coupled to be driven by the turbine section. A fan nacelle is arranged around the fan, and a bypass passage extends between the fan nacelle and the core engine. A variable area fan nozzle (VAFN) extends at least partially around the central axis and defines an exit area of the bypass passage. The VAFN is selectively movable to vary the exit area. The VAFN includes a body that defines an airfoil cross-section shape. The VAFN includes a wall that has a mechanical property distribution in accordance with a computer-simulated vibration profile of a flutter characteristic of the VAFN.

Abstract: An exhaust apparatus for a multi-cylinder engine which is capable of suppressing deterioration in ejector effect with a simple configuration comprises: a plurality of independent exhaust ducts each having an upstream end connected to an exhaust port of one cylinder or exhaust ports of two or more cylinders which are non-successive in terms of exhaust order; and a merged portion configured to allow exhaust gas passing through each of the independent exhaust ducts to flow thereinto and formed to be gradually reduced in diameter toward a downstream side in an exhaust gas flow direction. The independent exhaust ducts are connected to an upstream end of the merged portion in such a manner that downstream ends thereof are bundled together. An O2 sensor is provided in the merged portion or a portion of an exhaust duct line downstream of the merged portion, to partially block an exhaust gas flow passage.

Abstract: A method and device for testing a diesel engine to determine whether the engine's diesel particulate filter is functioning properly is provided. The device comprises an elongated pole with a service ring disposed at one end. The service ring is designed to removably support a filtration means, which is composed of porous cloth material. The device is removably affixed over the outlet of a diesel engine exhaust pipe, allowing the filtration means to trap any particulates that may be contained within the engine exhaust. If the diesel engine particulate filter is functioning properly, there will be no particulates collected by the filtration means; if the diesel engine particulate filter is not functioning properly, the present invention allows the user to collect physical evidence of such.

Abstract: A method is provided for controlling varnish build-up in a variable geometry turbine (VGT) of a diesel engine turbocharger. According to the method, it is determined whether an operation parameter is at a level established for initiating a varnish build-up control sequence. Upon determining that the operation parameter is at the established level, the varnish build-up control sequence is initiated. The sequence comprises increasing exhaust temperature upstream of the VGT to a first exhaust temperature, and changing an opening size of a VGT nozzle between a smaller and a larger opening size in association with increasing the exhaust temperature to the first exhaust temperature. A diesel engine arrangement is also provided.

Abstract: Provided is an exhaust apparatus for a utility vehicle which discharges exhaust gas from exhaust pipes connected to exhaust ports of an engine including cylinders, the apparatus including an exhaust gathering portion gathering the exhaust pipes, a catalyst portion located on a downstream side of the exhaust gathering portion and purifying the exhaust gas, and a sensor attaching pipe provided between the exhaust gathering portion and the catalyst portion and to which an exhaust gas sensor is detachably attached, wherein the sensor attaching pipe, in a state where the exhaust gas sensor is attached, has a height in which a sensing portion of the exhaust gas sensor is located in the sensor attaching pipe, and the sensor attaching pipe is provided such that a top end to which the exhaust gas sensor is detachably attached is located above a base end and away from a surrounding heat source.