Abstract: A fertilizer stabilizer tank and tank mounting system for mounting the tank to the tongue or hitch frame of a fertilizer applicator is provided. The mounting system mounts the stabilizer tank in a manner that does not interfere with operation of the tractor or reconfiguration of the applicator as the applicator is folded/unfolded.

Abstract: A bracket arrangement for securing fertilizer hoses, such as those for carrying anhydrous ammonia, to the frame of a fertilizer applicator or similar implement is made of a corrosion resistant material and is thus resistant to damage caused by thermal changes, sunlight, and inclement weather. The bracket arrangement is designed to be removably attached to the implement frame to allow flexibility in where along the frame the hoses, or bundles of hoses, are retained. The bracket arrangement includes a bracket having an elongated and generally planar body with an eyelet formed in the planar body. The eyelet is configured to pass a length of hose and restrict movement of the hose in a direction orthogonal to its length.

Abstract: A multi-needle sewing machine includes needle bars, presser feet, a support member configured to support the needle bars such that the needle bars can move up and down, a cutting member, a guide member configured to move between an extended position and a stand-by position, and a holding member configured to hold an end portion of a upper thread, the holding member including a fixed member that is mounted to the support member, movable members each of which is provided for one of the needle bars, and includes a guide portion formed by cutting a notch in an outer end portion on the needle bar side of the movable member, and elastic members each of which is provided for one of the movable members and configured to elastically energize the one of the movable members toward the fixed member.

Abstract: Methods of tufting a pattern in a backing material using a plurality of different yarns A, B, . . . n that are threaded in the needles of a needle bar in a non-repeating sequence or pattern of yarn sets across the width of the needle bar.

Abstract: A pontoon boat including at least two pontoons and a deck supported on the pontoons. A wall assembly is anchored to the deck and extends generally upwardly therefrom to present an interior space for accommodating passengers. The wall assembly is composed of a plurality of wall segments, each including an open framework of extruded hollow beam members with an open area between the beam members. Each wall segment also includes at least one panel covering at least a portion of the open area, and the panel is secured by an adhesive along at least three of its edge regions to the beam members.

Abstract: A watertight door system for a marine vessel comprises a door and a door frame having a threshold. A circumferential seal is around an opening of the door frame closed by the door. The seal is formed between seal components of the door and seal components of the door frame. The frame is adapted for connection to the bulkhead and comprises two sides, a top member and a floor trough. Means are provided to press the door against the frame when the door is in a closed position. The trough has a floor plate substantially flush with a top edge of the trough, which floor plate is adapted to form a floor panel of the floor of the vessel, with said trough received in an aperture of the floor. The trough has a lid to close the trough, at least when the door is in an open position, so that the floor is rendered substantially level through the door aperture. The seal may extend along the lid (in the case of a pivoting door) or in the trough, in the case of a sliding door.

Abstract: A system for automatically launching and recovering marine or underwater vehicles from a carrier ship which remains under way to limit pitching and rolling movements. The system includes an inclinable articulated ramp including a bottom and edges, and hauling means for controlling sliding of the vehicle along the ramp during launch and for hoisting the vehicle up along the ramp during recovery. The ramp has a free end which varies between an immersed position in water and an emerged position in a horizontal position. The system includes buoyancy means allowing the free end of the ramp to float at the surface or near the surface of the water when lowered. The bottom of the articulated ramp also has an external face that is configured to form streamlining ensuring fluidity of the end of the ramp with the water and limiting vertical dynamic movements caused by waves.

Abstract: A method for use with maintenance of an offshore wind farm includes a plurality of offshore wind turbines installed in open sea, where the method uses an assembly of a plurality of shuttle vessels 8, 9 and a seaworthy harbour ship 1 which includes an internal harbour basin 4 within outlines of the ship 1 and a plurality of mooring positions 7 for mooring the plurality of shuttle vessels 8, 9 to the ship 1 when lying inside the basin 4, where the method further includes comprises sailing the assembly of the plurality of shuttle vessels 8, 9 and the harbour ship 1 towards an anchoring position near or in the wind farm and anchoring the harbour ship 1 there, and sailing the plurality of shuttle vessels 8, 9 back and forth between the mooring positions 7 of the anchored harbour ship 1 and distinctive ones of the wind turbines for performing the maintenance thereto.

Abstract: Marine or underwater vehicle designed to be secured to a recovery cable includes contactless elements (6) for detecting the recovery cable (2), the element being capable of guiding the vehicle (1) towards the cable (2) and elements (7) situated at one end (3b) of the vehicle (1) for coupling the cable (2).

Abstract: A boat including at least two wall segments extending generally upwardly from a deck to define an interior space. The wall segments are spaced from one another to define a passage for allowing passengers to enter and exit the interior space. A gate is secured to one of the wall segments for controlling access to the interior space. A latch assembly including base and sliding members is coupled to an end of one of the wall segments. The sliding member is movable between a latched position for trapping a portion of the gate and an unlatched position for releasing the gate. At least one glide plate of a low-friction material is disposed between the base and sliding members. Additionally, when the sliding member is in the unlatched position, the base member presents a strike surface for receiving contact from the gate to protect the wall segment.

Abstract: A rectangular shaped slide plate having undercurved opposite side edges for adjusting the front to back location of a boat accessory, a pair of elongated rigid, U-shaped members for supporting a boat accessory are mounted on the slide plate at the edges of the slide plate transverse to the curved edges.

Abstract: A reclining marine seat is provided. An embodiment of the reclining marine seat marine seat comprises a seat back retainer section having at least one sidewall. The sidewall defines a top surface. The reclining marine seat further comprises a back having at least one sidewall. The sidewall defines a bottom surface. The back is pivotal between first and second positions with respect to the seat back retainer section. The bottom surface of the back does not extend above the top surface of the seat back retainer section during movement of the back between the first and second positions. The reclining marine seat further includes a seat. First and second frames are provided to support the back and seat.

Abstract: A pontoon boat including a plurality of pontoons and a deck secured to the pontoons. A wall assembly is anchored to and extends upwardly from the deck to provide an interior space of the deck for accommodating passengers. The pontoon boat includes a substantially enclosed storage space defined at least in part by a portion of the deck and a portion of the wall assembly. The wall assembly has a bottom edge that is spaced off of the deck to provide a first air access opening into the storage space from beneath the wall. At least one vent is provided in the wall portion at a location spaced above the bottom edge and in open communication with the storage space. The vent enhances air flow and venting of the storage space.

Abstract: A pontoon boat including a first wall segment and a second wall segment. The first and second wall segments are arranged end-to-end to present a joint therebetween. A joint cover formed as a separate piece from the first and second wall segments bridges across and substantially conceals the joint. A transition feature, such as a decal, is disposed on one of the wall segments adjacent to the cover. The transition feature including a first color zone, a second color zone and a transition zone is disposed on one of the wall segments adjacent the joint cover.

Abstract: The present application is directed to illustrative label measurement systems for a container and methods thereof. A base label may be adhered to the container, and measurement information displayed on the base label. A top label may cover at least a portion of the base label. The top label may be rotatable about the base label to a specific unit of measurement. The top label may have a transparent window allowing measurement information for the specific unit of measurement to be visible through the transparent window and a second transparent window allowing a gradient line associated with the specific unit of measurement to be visible through the second transparent window.

Abstract: A bookmark can include a ribbon coupled to a clip. The clip can include a rigid body and a display body that are resiliently coupled to each other. The rigid body can include upper and lower attachment regions at which the ribbon is coupled with the clip.

Abstract: A method for modifying crystallographic symmetry on the surface of a silicon (001) wafer, the method comprising providing a silicon substrate wafer having a symmetry element, forming a symmetry breaking layer on the substrate, and growing at least one transformation layer having a 3-fold or 6-fold rotational symmetry axis substantially perpendicular to the wafer surface on the formed symmetry breaking layer.

Abstract: An absorber layer of a photovoltaic device may be formed on an aluminum or metallized polymer foil substrate. A nascent absorber layer containing one or more elements of group IB and one or more elements of group IIIA is formed on the substrate. The nascent absorber layer and/or substrate is then rapidly heated from an ambient temperature to an average plateau temperature range of between about 200° C. and about 600° C. and maintained in the average plateau temperature range 1 to 30 minutes after which the temperature is reduced.

Abstract: An apparatus for coloring a recognizable tool bit includes an operating system and a control system electrically connected to the operating system. The operating system has a rotating mechanism having a rotor extending therefrom for adapting to connect to a tool bit. A supplying mechanism is provided for adapting to store dyestuffs and inject the dyestuffs for coloring the tool bit. A daubing mechanism is relatively connected to the supplying mechanism for soaking dyestuffs from the supplying mechanism and daubing the dyestuff on the tool bit.

Abstract: A fluid discharging device that discharges fluid from a plurality of discharge openings towards a continuous sheet member which is continuously transported in a transporting direction. The fluid discharging device includes: a plurality of valves that correspond to the discharge openings and intermittently discharge the fluid from the discharge openings by opening and closing operations; and a controller that controls the opening and closing operations of each of the valves individually depending on a transportation amount of the continuous sheet member. The controller calculates a shared compensation value that is represented by a value indicating the transportation amount, based on a transport velocity of the continuous sheet member. The controller shifts an open-close timing of at least several valves of the plurality of valves from a previously-determined open-close timing, based on the shared compensation value.

Abstract: Provided is a slot die for improving coating uniformity including a main body, a cavity formed in the main body, an introduction part formed at an upper portion of the main body to supply a coating solution into the cavity, an injection unit configured to provide an external ejection path for the coating solution with respect to a portion of or the entire cavity, and a guide member arranged in the cavity to help diffusion of the coating solution to the injection unit. Accordingly, the guide member arranged in the cavity can induce diffusion of the ejected coating solution so that the coating solution can be more uniformly applied.

Abstract: A precursor delivery system for an irradiation beam instrument includes an injection tube for injecting gasses into the instrument vacuum chamber and a main gas line having an inlet and an outlet. The outlet is connected to the injection tube, and the inlet is connected to a sequential pair of valves connected to a carrier gas source. A crucible for holding precursor material is selectively connected to the main gas line at a location between the pair of valves and the injection tube. The source of carrier gas may be selectively connected to the inlet by sequential operation of the pair of carrier gas valves, so that pulses of carrier gas assist the flow of precursor material to the injection tube. Rapid purging of the system between precursors is enabled by a valve selectively connecting the main line to an envelope in communication with the instrument vacuum.

Abstract: A processing condition inspection method of a damage recovery process for reforming a film having OH groups generated by damages from a predetermined process by using a processing gas includes preparing a substrate having an OH group containing resin film, measuring an initial film thickness of the OH group containing resin film, performing a damage recovery process on the substrate after measuring the initial film thickness, measuring a film thickness of the OH group containing resin film after the damage recovery process, calculating a film thickness difference of the OH group containing resin film before and after the damage recovery process, and determining whether processing conditions of the damage recovery process are appropriate or inappropriate based on the film thickness difference.

Abstract: Methods and apparatus for processing a substrate are provided herein.

Abstract: A device for doping, deposition or oxidation of semiconductor material at low pressure in a process tube, is provided with a tube closure as well as devices for supplying and discharging process gases and for generating a negative pressure in the process tube. A closure of the process chamber that is gas tight with respect to the process gases and the vacuum tight seal of the end of the tube closure are spatially separated from each other in relation to the atmosphere and are arranged on a same side of the process tube in such a manner that a bottom of a stopper, sealing the process chamber, rests against a sealing rim of the process tube and the tube closure end is sealed vacuum tight by a collar, which is attached to the process tube and against which a door rests sealingly.

Abstract: A milking system includes a milk storage tank, a common milk line connected to the tank, at least two milking stations connected to the milk line, a milk constituent analyzing unit connected to the milk line and analyzing the milk provided from each of the stations through the milk line, with respect to a specific milk constituent, and a computer operatively connected to the analyzing unit. The computer stores milk quality information of the extracted milk and animal identity data of each of the specifically identified animals. Each station automatically identifies a specific animal, extracts milk from the animal, and transfers the milk through the common milk line to the milk storage tank. The stations, the computer, and the analyzing unit are operatively connected to allow a result of the milk analysis to be associated with the animal(s) identity specifically identified at each station from which the milk was extracted.

Abstract: A milk analyzing system is disclosed, which includes a milk constituent analyzing unit configured to analyze milk from a milking station with respect to a specific constituent of the milk, and a control device communicatively connected to the milking station and to the milk constituent analyzing unit. The control device is configured to retrieve an analyzing appropriateness parameter for each of the animals milked by the milking station indicating an appropriateness of analyzing milk from the animal with respect to the specific constituent. The control device is configured to control the milk constituent analyzing unit to analyze milk from the milking station with respect to the specific constituent when the time elapsed from when the milk constituent analyzing unit last analyzed milk exceeds a threshold time period, irrespective of the analyzing appropriateness parameter for the animal milked by the milking station.

Abstract: A self-contained, multi-function animal jacket, which massages the animal with movable elements and which vacuums up and collects the hair loosened by the massage movable elements.

Abstract: The present invention relates to a toy for motivating or training a pet, comprising a first outer shell section (2) and a second outer shell section (2?), said first and second shell sections (2,2?) being arranged to create a space between themselves, and further comprising an entry opening (21, 21?), preferably comprising a raised section (29, 29?) that extends into said space, and said toy also comprising at least one exit opening (22-24?), each of said entry and exit openings (22-24?) being arranged to connect said space to a surrounding of said toy (1), characterized in said toy (1) being arranged to provide at least two different paths through said space from said entry opening (21, 21?) to said exit opening (22-24?), said at least two paths being provided by means of at least one ridge (32), preferably fixed to said shell section (2, 2?), said ridge defining a limited transversal opening, wherein said ridge (32) and opening respectively are arranged to provide a maze like path for transversal movement o

Abstract: Systems and methods for generating a laser beam illuminating a space around an object are provided. The laser beam illuminates an animal that is approaching the object in the space. The laser beam is generated by a laser illuminating at least a first micro-mirror that moves under control of a processor. Additional micro-mirrors are contemplated. The laser beam reflected from the moving micro-mirror illuminates the space around the object. Laser, processor and micro-mirrors are dimensioned to illuminate with a high probability an area with a cross-section perpendicular to a laser beam of 10 cm by 10 cm inside the space at a distance of up to 200 meters from the laser or farther.

Abstract: A device and method for washing animals, particularly cats, including a frame assembly, a cover assembly and a harness assembly. Said frame assembly configured to support the weight of the animal being washed over a container of water. Said frame assembly supportable by the container and/or optional legs. Said frame assembly wrapped by the optional, durable cover. The device is utilized to wash an animal by restraining the animal in said harness assembly and attaching said harness assembly to said frame assembly. When the animal is restrained on the frame assembly over water the animal becomes docile and able to be easily washed.

Abstract: According to the required amount of heating, a controller of a combustion apparatus exercises selective on-off switching control on capacity control switching valves for the supplying of gas to three different combustion areas partitioned respectively by a group of three combustion burners, a group of five combustion burners and a group of nine combustion burners, whereby the three combustion areas can selectively be burned, thereby the combustion capacity is changed and switched to any of a plurality of combustion capacity levels. A combustion exhaust temperature sensor is disposed in the vicinity of the inlet of an exhaust stack. Judgment temperatures corresponding respectively to combustion capacity levels for combustion exhaust high-temperature abnormality judgment are set.

Abstract: A fuel supply system includes an energy output device, a reformer and a cooling unit. The energy output device consumes fuel, which is a compound including hydrogen, and outputs energy. The reformer decomposes fuel so as to generate hydrogen which is to be supplied to the energy output device. The cooling unit cools the hydrogen generated in the reformer.

Abstract: A cylinder cooling construction includes a cylinder liner with a sidewall, exhaust and intake ports opening through the sidewall, a bore, and a plurality of feed channels that are formed with and extend along the sidewall from a central band of the cylinder toward the exhaust and intake ports. A sleeve covering the sidewall includes a plurality of impingement jet ports that are arranged in at least one sequence extending around the central band and that are in liquid communication with the plurality of feed channels. An annular member disposed between the liner and the sleeve reinforces the central band. The sleeve further includes an inside surface with spaced-apart annular recesses that with the sidewall define liquid coolant reservoirs in the vicinity of the ports that are in liquid communication with the feed channels.

Abstract: The invention relates to a laser spark plug (100), in particular for an internal combustion engine of a motor vehicle, having a combustion chamber window (120) situated in an end area (100a) facing the combustion chamber. According to the invention, arrangement (130) are provided for cooling a volume region (210) present in the area of the combustion chamber window (120) and/or a medium present in the volume region (210). The cooling arrangement (130) have a cooling body which has material having a relatively great thermal conductivity, in particular having a thermal conductivity of approximately 90 Watts per Kelvin and meter at room temperature or more. The cooling body (131) is designed essentially annularly. An inner diameter (D1) of the cooling body (131) in the area of a front side (131a) facing the combustion chamber of the cooling body (131) is smaller than an inner diameter (D2) of the cooling body (131) in the area of a front side of the cooling body (131) facing away from the combustion chamber.

Abstract: A piston cooling channel cover is disclosed. The cover includes an annular lower cover, wherein the annular lower cover is at least one of a one part cover and a multi-part cover; at least one of a standpipe-like inflow and a standpipe-like outflow, wherein at least one of the inflow and the outflow are unitarily formed with the lower annular cover.

Abstract: In a drag racing vehicle, especially one utilizing a V-block engine, valve gap measurement and adjustment, valve spring force measurement, and the like are carried out with the aid of a foot-operated switch removably connectible to a circuit that carries battery current to the vehicle's starter motor. The foot switch is provided with a cable allowing it to be positioned in either side of the vehicle. Operation of the foot switch effects rotation of the engine crankshaft and camshaft through a small angle so that each valve can be brought to a fully closed condition for measurement or adjustment.

Abstract: A camshaft adjusting device (1) including at least two hydraulic chamber (A, B) disposed between a stator (3) and a rotor (4) and separated by a vane (5) and supplied with pressure oil from a pressure oil source (P) by a hydraulic oil controller (6). In order to achieve improved filling and emptying of the hydraulic chambers, the hydraulic oil controller according to the invention provides: first and second supply lines (7, 9) disposed between the pressure oil source (P) and one of the hydraulic chambers (A), wherein check valves (8, 10) are disposed in the supply lines (7), wherein the supply lines (7) are free of further switchable valve elements, and wherein the supply lines (7) are the sole inlet line for hydraulic oil from the pressurized oil source (P) into the hydraulic chambers (A, B), and a 4/3-way valve element (11) that is effectively disposed between the hydraulic chambers (A, B) and a tank (T) has three valve positions (I, II, III).

Abstract: A camshaft adjuster (2) having a vane-type design with a stator (4) and a rotor (6), which can be rotated relative to the stator (4), and at least two pressure chambers (8a, 8b) formed between the stator (4) and the rotor (6). The pressure chambers (8a, 8b) are separated from each other by a radially oriented vane (12) of the rotor (6), wherein the pressure chambers (8a, 8b) can be alternately supplied with a pressure medium. The vane (12) has a radial face (20) and two lateral faces (20) that are directed toward the pressure chambers (8a, 8b). The radial face (20) is sealed by a U-shaped sealing element (26) having a main limb (30) and two side limbs (32) seated against the lateral faces (22). The pressure chambers (8a, 8b) of the camshaft adjuster (2) are sealed particularly reliably by designing check valves (28) on the side limbs (32) of the sealing element (26) and by designing, on the lateral faces (22) of the vane (12), outlets for the pressure medium with which the check valves (28) are associated.

Abstract: A valve drive device for switching the stroke of gas exchange valves of an internal combustion engine includes a camshaft configured, at least in part, as a hollow shaft. A cam unit includes at least two different cams disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect thereto. An adjustment sleeve is disposed so as to be rotationally engaged on an adjustment shaft and rotatable and axially displaceable inside the camshaft. The adjustment sleeve includes thereon a closed adjustment contour extending about a circumference of the adjustment sleeve and is operatively connected to the cam unit through an adjustment clearance in the camshaft via a first coupling element configured to permanently engage in the adjustment contour. A further coupling element is configured to permanently engage in the adjustment contour and connect to the camshaft so as to be fixed in position.

Abstract: In a valve drive for an internal combustion engine, with a rocker arm (40) being arranged in its cylinder head pivotal by the cams of a camshaft and supported with one end at the valve shaft of a charge-cycle valve, while comprising at its other end a ball scraper (46), resting on the spherical end section (44) of a support element (42) embodied as a hydraulic valve clearance compensation element, a groove-shaped ventilation channel (57) is arranged according to the invention in the contact area between the ball scraper (46) of the rocker arm (40) and the spherical end section (44) of the support element (42) by which the oil reservoir (54) of the support element (42) is open towards the outside.

Abstract: A combustion chamber in an opposed-piston, internal-combustion engine is disclosed in which the pistons tops are designed so that when they approach each other, they induce a tumble flow in one or two hemispherical spaces defined in the piston tops. The combustion chamber further includes injectors side mounted in the cylinder wall. In one embodiment, the tumble flows in the two hemispheres are in the same direction and in another embodiment, in opposite directions. In yet another embodiment, there is only one injector and one hemisphere in which a tumble flow is induced.

Abstract: An air intake system for an off-road vehicle includes an intake conduit upstream of a segmented debris removal device and a mail filter element. A baffle is disposed in the intake conduit and extends into the incoming air stream to avoid swirl in the air stream and provide more even air flow distribution into the segments of the segmented debris removal device. The baffle may have two generally parallel elements spaced from one another to reduce mixing of air regions separated by the baffle. The baffle reduces or eliminates vortices that adversely affect air flow into the segmented debris removal device.

Abstract: In an internal combustion engine with a balancer including a crankcase having a pair of wall portions, a crankshaft supported for rotation on the wall portions and having a balancer driving gear wheel provided thereon, and a balancer shaft supported for rotation by the wall portions and having a balancer driven gear wheel provided thereon, both gear wheels are disposed between the wall portions. A positioning mark including a set of marks provided on side faces in the same direction of the gear wheels is disposed near to pitch circles of both gear wheels. At a position opposing to both side faces of the one wall portion on the side opposing to the positioning mark on the pitch circles of both gear wheels, a through-hole extending through the one side wall is provided to permit the positioning mark to be visually observed through the through-hole.

Abstract: Devices for sealing the gap between a bore pin and an insert (e.g., sleeve) during the casting of, for example, internal combustion engine cylinder blocks. Such devices incorporate a sealing ring set that may be set into a recessed channel about a circumference of the bore pin. Radial force on the ring provides a seal between the bore pin and the sleeve that prevents flash from entering gaps therebetween. The ring may take on any of a number of different configurations and the outward force may be generated in various ways—including from the tension of the ring itself.

Abstract: A cylinder head assembly for an internal combustion engine includes a fluid cavity that contains a fluid. The cylinder head assembly also includes a first member with a first internal surface defining a first part of the fluid cavity. Also, the assembly includes a second member with a second internal surface defining a second part of the fluid cavity. The second member is coupled to the first member. The first and second internal surfaces cooperate to define the fluid cavity.

Abstract: A piston including a piston crown, the piston crown having a combustion surface that further defines a combustion bowl rim area and a bowl root area. A thermal spray coating is applied to the bowl rim and/or the bowl root area of the piston to increase the resistance of the piston to thermal mechanical fatigue. The thermal spray coating may be metal or alloy based and may be applied using any suitable process.

Abstract: A lubrication structure for a bearing section of an internal combustion engine including a crankcase having a wall portion, a bearing secured to the wall portion, a rotational shaft supported for rotation by the bearing, and a bearing restriction member disposed on a side face of an outer race portion of the bearing and configured to suppress coming off of the bearing, wherein an oil receiving portion formed in a swollen state on the wall portion along an outer periphery on the outer side of an outer periphery below the center axis of the bearing, and an oil reserve section is provided so as to extend over the oil receiving portion and the bearing restriction member.

Abstract: A motorcycle includes a frame and an engine, with the engine including components forming a crankshaft assembly, such as a flywheel, a pinion shaft supporting the flywheel for rotation, a piston assembly including a connecting rod with a base end portion having a bearing support structure, a bearing, and a crank pin. An uninterrupted oil passageway is formed by an axial hole in the pinion shaft, a radial hole in the pinion shaft, an aligned hole in the flywheel, an angled hole in the crank pin, at least one radial hole in the crank pin. The angled hole in the crank pin extends between the inner and outer surfaces, with the angled hole starting on the outer surface at a location along a distance L1 and extends to the inner surface exiting at a location inboard of the distance L1, the angled hole being linear along its length.

Abstract: A two-stage oil separator for crankcase ventilation includes a housing having a lower end and an upper end. The lower end communicates with the crankcase and the upper end communicates with an exhaust system. The housing defines an internal flow channel extending generally upwards from the lower end toward the upper end. A first-stage filter element is disposed proximate the lower end and includes a first filter media of relatively coarser porosity. A second-stage filter element is disposed proximate the upper end and vertically upward of the first-stage filter element. The second-stage filter element includes a second filter media of relatively finer porosity than the first filter media.