A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer.

The invention relates to the use of a hot-melt adhesive having high hardness for adhesive bonding of metal films or foils, paper films or foils, and/or plastic films or foils. The invention further relates to a method for adhesively bonding a metal film or foil, paper film or foil, and/or plastic film or foil onto a substrate.

Disclosed is a liquid processing apparatus capable of accurately determining a holding state of a substrate without being influenced by, for example, material or surface condition of a substrate. The liquid processing apparatus includes a substrate holding unit that holds a substrate, a camera that photographs a region where a peripheral edge portion of substrate is present when substrate is properly held by the substrate holding unit, and a control unit that determines a holding state of the substrate held by the substrate holding unit based on an image photographed by the camera.

The invention provides a plasma processing apparatus in which ring-like conductors 8a and 8b are arranged closed to and along an induction antenna 1 composed of an inner circumference coil 1a and an outer circumference coil 1b. Ring-like conductors 8a and 8b are each characterized in that the radius from the center of the apparatus and the cross-sectional shape of the conductor body varies along the circumferential angle of the coils. Since the mutual inductances between the ring-like conductors 8a and 8b and the induction antenna 1 and between the ring-like conductors 8a and 8b and the plasma along the circumferential position are controlled, it becomes possible to compensate for the coil currents varied along the circumference of the coils of the induction antenna 1, and to improve the non-uniformity in the circumferential direction of the current in the generated plasma.

Methods for etching a substrate in a plasma processing chamber having at least a primary plasma generating region and a secondary plasma generating region separated from said primary plasma generating region by a semi-barrier structure. The method includes generating a primary plasma from a primary feed gas in the primary plasma generating region. The method also includes generating a secondary plasma from a secondary feed gas in the secondary plasma generating region to enable at least some species from the secondary plasma to migrate into the primary plasma generating region. The method additionally includes etching the substrate with the primary plasma after the primary plasma has been augmented with migrated species from the secondary plasma.

A ‘bioactive’ composition that has one or more oligogalacturonans ((1→4)-α-D-galacturonan) or any other oligosaccharides (oligoguluronans) that may present an ‘egg box’ conformation, this conformation being further stabilized by one or more polycationic saccharide(s), preferably either a chitosan oligosaccharide or a chitosan polysaccharide. A method prepares this composition and it is used, in medical, pharmaceutical, agricultural, nutraceutical, food, feed, textile, cosmetic, industrial and/or environmental applications.

A composition comprising at least one nutrient element, wherein the at least one nutrient element possesses a relative energy-state value greater than the relative energy-state value of the at least one nutrient element in a preexisting state, the composition being effective, perhaps because of the greater energy-state value, to improve the ability of a soil, when combined with the composition, to support plant growth better than the soil, when not combined with the composition. Also a composition comprising at least one nutrient element, wherein the composition possesses an energy spectrum more positive than the energy spectrum of the composition in a preexisting state, the composition being effective, perhaps because of the more positive energy spectrum, to improve the ability of a soil, when combined with the composition, to support plant growth better than the soil, when not combined with the composition. Methods of making and using the same for improving soil, plants, plant growth, seeds, and/or plant products, including quality of plant products, are also disclosed, as well as improved soil, seeds, including quality of seeds, plants, and/or plant products, including quality of plant product.

The present disclosure is directed toward a composition and method of treating and preventing infection of pathogenic microorganisms and endopyhtic microorganisms in a plant through the use of phosphite compositions.

Method for the stabilization of contaminants within a material selected from soils, mining tailings and by-products, sludge wastes and industrial wastes, by mixing the material with an alum sludge composition. The composition includes one or more aluminum compound(s) and/or complex(es) together with a reactive carbon material.

The invention relates to a fertilizing compound for application to plants and crops, especially fruits, intended for increasing the amount of calcium and subsequently improving the state of health of the plants and the preservation thereof after harvesting. The compound consists of a combination of components such as calcium nitrate, calcium lignosulfonate, organic acids, menadione sodium bisulphite, amino acids and water. The compound is in the form of a liquid preparation, packed in containers of between 20 and 1000 liters, is water-soluble and is applied by fertigation, spraying or in a localized form by border irrigation.

The steps of the irrigation method include: flowing a stream of water having input and output and intermediate location; interposing a feeding device into the stream of water at the intermediate location, the feeding device having input and output ends; inserting a quantity of nutrient fertilizer into the feeding device; converting the nutrient fertilizer from the viscous state to the less viscous state through the flow of water through the feeding device; and intermixing the viscous nutrient fertilizer with the water entering the feeding device whereby the water leaving the device to plants and soil will include a fertilizer.

A water-insoluble phosphate fertilizer, methods of producing, and methods of using the same are provided. The fertilizer may comprise at least one alkaline earth metal selected from calcium and magnesium and optionally at least one nutrient ion selected from the group consisting of potassium, ammonium, zinc, iron, manganese, copper, boron, chlorine, iodine, molybdenum or selenium. The fertilizer compounds are preferably water-insoluble, dilute acid-soluble, and free-flowing powders.

Methods are provided for processing municipal human waste such that the processed material is is greater than 99% free of pathogenic organisms. The processed material can be used as an organic fertilizer or a “Class A” organic fertilizer. The methods include reducing the moisture content of human sludge free of polymeric flocculant to less than about 30% moisture and processing the sludge through an extruder under conditions having a minimum temperature of about 140° C., a residence time of about 30 seconds, and an atmospheric pressure differential of about 40 atmospheres. The methods are economical and have numerous advantages including reduced use of fossil fuel, fast processing time, and production of an odor free organic fertilizer free of many land use restrictions.

A composition includes a first chelating agent, a second chelating agent, and a plurality of metal ions. In one embodiment, the second chelating agent includes citric acid and is different than the first chelating agent. A method for forming a composition includes mixing a first chelating agent, a second chelating agent, and a metal salt together to form a mixture and processing the mixture to form at least one of a granulated composition and a powdered composition. In some embodiments, the second chelating agent includes citric acid and is different than the first chelating agent.

A navigation system includes at least one inertial sensor configured to detect motion of the system and generate inertial data; at least one aiding device configured to generate aiding device measurement data; at least one processing unit configured to generate an un-smoothed navigation solution inclusive of navigation state variable error resets based on the inertial data and the aiding device measurement data; wherein the at least one processing unit is further configured to sum the state variable error resets into a cumulative sum of the state variable error resets; wherein the at least one processing unit is further configured to high pass filter the cumulative sum of the state variable error resets; and wherein the at least one processing unit is further configured to subtract the high pass filtered cumulative sum of the state variable error resets from the un-smoothed navigation solution to generate a smoothed navigation solution.

Aspects of the present disclosure include a navigation system and computer-implemented methods for proactively re-routing vehicles based on an analysis of input component data obtained from the navigation-enabled devices. The navigation system scores the input component data to obtain a measure of frustration (e.g., a feeling of being upset or annoyed) of the user of the navigation-enabled device. The navigation system may provide a detour suggestion for display on the navigation-enabled device to persuade the user of the device to direct their vehicle to depart from its current location or route in an effort to remove the vehicle from traffic, and thereby reduce the frustration level of the user. The detour suggestion may include an alternative route to the original destination, or an alternative destination.

Aspects of the present disclosure include a navigation system and computer-implemented methods for detecting traffic disruption events based on an analysis of input component data obtained from navigation-enabled devices of vehicles near a particular location. Traffic disruption events are events such as accidents, construction road closures, police and speed traps, or road hazards that cause a decrease in the flow of traffic along a particular route and thus, added time delays for occupants of vehicles traveling along those routes. The navigation system scores the input component data associated with each vehicle and aggregates the scored input component data to obtain a frustration score associated with the vehicle. The navigation system may detect traffic disruption events based on a number of vehicles near a particular area having associated frustration scores above a certain threshold.

A motor mounted on a structural support with a pivot at its center line which comprises a cylindrical vessel for holding a fluid in a closed system and in which a buoyant cylinder containing a lighter fluid is allowed to free float so that a cable attached to either end of the buoyant cylinder may be used to transfer energy to a energy storage unit, a crank or a generator. Two moment arms having a weight attached at the exterior end and inside attachably connected to the surface of two drive pistons that operate in pressure tanks which force a compressed gas against the pistons through pre-sequenced automatic activated valves to extend or retract the moment arms at the end of a cycle. The motor then becomes top heavy and rotates 180 degrees by gravity and relocks in place to repeat the cycle.

A fluid dispensing system provides a sprayer. The system has a container with liquid fluid, such as used in lawn and garden weed control and fertilization. The sprayer has a handle containing a spring engine and a pump for liquid from the container. The spring engine has a flat spring having a spring band extending from two coils wound on two shafts. One of the coils is manually wound by a crank connected to a shaft on which the coil is connected. The other shaft is connected to the pump by a rotary cam driver. Liquid is sucked by the pump into a pump chamber during part of a cycle of rotation of the other shaft when the coils are unwound and the liquid is pumped out of the chamber during the other part of the cycle of rotation to a sprayer head on the sprayer handle.

A device for generating rotational movement which includes an output shaft supported for rotational movement and at least two one-way clutch mechanisms attached to the output shaft. An inflatable piston (“infton”) assembly is associated with each one-way clutch mechanism and includes a weighted member, an inflatable bladder associated with the weighted member, at least one inlet valve associated with an interior of the inflatable bladder, at least one outlet valve associated with the interior of the inflatable bladder, and a chain associated with the weighted member and extending over and drivingly engaging the respective one-way clutch mechanism. A source of filling fluid supplies each inlet valve. The filling fluid has a density less than that of a buoyancy fluid surrounding the infton assembly. A control system is configured to control the inlet and outlet valves to facilitate filling and discharging of the inflatable bladders.

A barrel including a box for receiving a pivot arbour and at least one spring, wherein the at least one spiral spring is mounted between an internal wall of the box and an external wall of the pivot arbour , and can be wound to supply mechanical energy. The barrel further includes a device for increasing torque of the at least one spring including supplementary energy accumulation curves made on the spring so that the barrel torque is customized according to a winding tension of the at least one spring. The barrel can be a timepiece barrel.

A printing device includes: a main body having an attachment surface; first and second mounting sections formed in the attachment surface respectively for detachably receiving first and second cassettes; first and second print parts; a body cover having an opposing surface; first and second pressing parts protruding from the opposing surface respectively toward the first and second mounting sections; first and second engaging parts provided at the main body; and third and fourth engaging parts provided at the body cover and engageable with the first and second engaging parts. A first center of gravity of load that the mounted first cassette applies to the first pressing part and a second center of gravity of load that the mounted second cassette applies to the second pressing part are located within a specific area on the opposing surface defined by virtual lines passing through locations on the third and fourth engaging parts.

A sheet processing apparatus includes a sheet conveying unit configured to unwind a portion of a rolled sheet and convey the unwound sheet, a ribbon conveying unit configured to convey a ribbon having thereon a coloring layer that is not visible up to a predetermined temperature and becomes visible above the predetermined temperature, a thermal head configured to transfer the coloring layer on the ribbon to a portion of the unwound sheet, and a cutter configured to cut off a portion of the unwound sheet.

An image processing apparatus for a printing apparatus. The image processing apparatus includes a recording position acquiring device for acquiring recording positions of a reference image printed by a reference print head and a target image printed by a target print head, a positional deviation amount calculating device for calculating a deviation amount due to a skew with respect to the recording positions of the reference image and the target image, and a positional deviation interpolation image converting device, when there is a remainder of the deviation amount and the predetermined intervals, for adding a weight based on the remainder, and adding a smaller weight than the weight to the reference image or the target image without a remainder and adjoining the reference image or the target image with the remainder, thereby converting the image into a width direction positional deviation interpolation image.

The present invention provides a new and useful apparatus for charging battery powered electronic devices using a rolling means. The rolling means transfers mechanical energy from a plurality of wheels to a generator by way of a gear ratio. The generator in turn yields electrical energy that is later transformed via integrated circuitry into viable power for the purposes of charging an optional internal batter or that of an attached device. This apparatus does not limit the user's mobility and can be used in everyday settings. The apparatus can be an integral part of a piece of luggage or added to an existing hand cart. Additionally, the apparatus can have a connection for a DC input to charge the internal battery when the apparatus is not in motion.

A testing method using a guided wave generates a guided wave to propagate through a subject as a testing target in a longitudinal direction of the subject, detects a reflected wave of the guided wave and examines the subject on the basis of the reflected wave. The testing method includes the steps of (A) obtaining data for defect amount estimation beforehand indicating a relationship between a defect amount of the subject and a magnitude of a reflected wave, (B) generating a guided wave so as to propagate through the subject, and detecting a reflected wave of the guided wave, and (C) estimating a defect amount of the subject on the basis of the data for defect amount estimation obtained at (A) and the magnitude of the guided wave detected at (B).

A kiosk apparatus that may select for a person a recommended footcare product based on pressure measurements collected from pressures sensors or calculated biomechanical data estimates. Pressure measurements and calculated biomechanical data estimates may be used to determine if a foot is unshod on the pressure sensor and also group a person into a classified subgroup. The pressure measurement and calculated biomechanical data estimates may also be used to select a recommended footcare product.

A vessel includes a hull and a deck, a substantially cylindrical rotor having a peripheral wall rotatable with respect to the deck around a longitudinal center line, the rotor being at a lower end connected to the deck and including an upper end plate, the rotor being mounted on the deck in such a manner that in an operational state the rotor is substantially vertically oriented and in an inoperational state the upper end plate is situated in the vicinity of the deck, the end plate extending transversely to the longitudinal center line, wherein the end plate is provided with movable edge segments that in the operational state of the rotor extend radially outwardly from the peripheral wall to an extended position and in the inoperational state of the rotor are moved to a retracted position that is situated closer to the peripheral wall than the extended position.

A vessel includes a hull, a propeller for propulsion of the vessel and at least one rotatable cylinder which in its operational state is vertically mounted on the vessel, the cylinder having a rigid outer surface, a motor drive for rotating the cylinder around a longitudinal axis and a displacement member for displacing the cylinder to an inoperational position, wherein the motor drive is situated inside the cylinder.

A system comprising a surface vessel floating on a body of water; an oil leak located in the body of water; a remotely operated vehicle located near the oil leak; a connection between the surface vessel and the remotely operated vehicle; wherein the remotely operated vehicle comprises a mixer and a dispersant injector.

Nail gel curing devices emitting ultraviolet light, as well as methods of their making and use are disclosed. The devices are useful for curing, inter alia, acrylic compositions, more particularly, acrylic nail gel compositions, and typically employ ultraviolet and/or visible light emitting diodes (“LED”) to cure such ultraviolet and/or visible light curable nail gel resins.

Disclosed are an evaporator, an evaporation method, and a substrate processing apparatus, which can increase the concentration of generated vapor of an organic solvent and efficiently heat the organic solvent. The evaporator includes a fluid tube, a liquid organic solvent supply device for supplying the organic solvent liquid to one end of the fluid tube, and heating units for heating the fluid tube. The fluid tube has a cross section that increases from the one end to the other end. When the organic solvent liquid supplied to one end of the fluid tube is heated, the organic solvent vapor is discharged from the other end of the fluid tube. The substrate processing apparatus includes the above-described evaporator.

Disclosed is a substrate processing apparatus capable of drying a substrate to be processed while suppressing the pattern collapse or the occurrence of contamination. A substrate is held in a liquid bath while being immersed in a liquid, and the liquid bath is disposed in a processing space of a processing vessel. A processing of drying the substrate is performed by replacing the liquid in the liquid bath with a supercritical-state fluid. A predetermined mechanism moves liquid bath between a processing location in the processing case and a stand-by location outside the processing case. A heater installed in the processing case changes the fluid to a supercritical state or maintains the supercritical state while cooling mechanisms cool down the liquid bath moved to the stand-by location outside the processing vessel.

A method for producing resin particles, including ejecting a liquid containing at least a resin in the form of droplets from a droplet ejecting unit having a plurality of holes provided in a part of a flow channel for feeding the liquid containing at least a resin, and drying and solidifying the ejected droplets so as to obtain the resin particles, while the ejected droplets are transported by a primary transport air flow flowing in the direction in which the droplets are ejected, wherein the ejected droplets are further transported by a secondary transport air flow which transports the ejected droplets in a different direction from a direction in which the primary transport air flow flows, and wherein a smaller angle of angles formed between a velocity vector of the primary transport air flow and a velocity vector of the secondary transport air flow is less than 120 degrees.

A freeze dryer processes bulk powder products. The freeze dryer freezes the product by mixing an atomized spray of product with sterile liquid nitrogen. The resultant powder is freeze dried in a vessel, and the vessel contents is agitated to maintain product contact with heated vessel wall and to prevent agglomeration.

Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the first less than fully sintered particle-matrix component. Earth-boring rotary drill bits comprise such components sinterbonded together.

Apparatus and associated method for sharpening a cutting edge of a tool. In accordance with some embodiments, a side of the tool is placed in contacting engagement against a reverse sharpening guide surface to orient the tool at an acute angle with respect to an abrasive surface, with the abrasive surface extending in a lateral direction from a first end to a second end and the reverse sharpening guide surface located proximate the first end. The tool is moved away from the reverse sharpening guide surface and along the abrasive surface in the lateral direction toward the second end while nominally maintaining the tool at the acute angle so that a cutting edge of the tool is sharpened against the abrasive surface in a trailing cutting edge orientation with a top surface of the tool opposite the cutting edge maintained closer to the second end than the cutting edge.

A bit mold is milled using a turning stage which forms a base mold component and a base gagering component. Next, a blade milling stage is performed in which the base mold component and base gagering component are milled to define integral junkslot formers separated by blade regions. Lastly, a pocket milling stage is performed in which the blade regions and integral junkslot formers of the base mold component are milled to define a plurality of cutter pockets in primary and perhaps secondary rows. Each cutter pocket includes a seat portion and a face portion. The milling of the pocket milling stage provides, at one or more of the cutter pockets, a facet. This facet is provided in an area about the junkslot former associated with the face portion of the cutter pocket, the face portion having, due to the presence of the facet, a surface for matching a cutter core displacement end surface without voids of a size which would require the use of fill material. The facet is also provided on either side of the pocket associated with the seat portion to avoid the need to clay the sides of the displacement for providing top-loading clearances. The milling process at the pocket milling stage further supports definition of relief and erosion resistance features in the mold.

A method of thermo-mechanically processing a preform composed of tool steel and a tool to modify a workpiece. The preform has a region containing austenite. The method comprises establishing the region at a process temperature between a martensitic start temperature and a stable austenitic temperature. While at the process temperature, the region is deformed to change an outer dimension and to modify the microstructure to a depth of 1 millimeter or more. The tool comprises a member composed of tool steel. The member includes a first region that extends from the outer surface to a depth of greater than 1 millimeter and a second region. The first region includes a plurality of grains having an average misorientation angle greater than about 34°, an average grain size that is at least 10% smaller than the second region, and has a different grain orientation than the second region.

Apparatus (2) for exercising a person's calves (4) in two different ways, which apparatus (2) comprises a footrest (8), a kneerest (10), and a length of stretchable material (12) for extending between the footrest (8) and the kneerest (10), and the apparatus (2) being such that: (i) the length of stretchable material (12) is flat sided;(ii) the footrest (8) has roller means (14);(iii) the roller means (14) allows the length of stretchable material (12) to connect to the footrest (8) such that the flat sides of the length of stretchable material (12) slide over the roller means (16);(iv) the kneerest (10) has anchor means (16) for the length of stretchable material (12);(v) the anchor means (16) allows the length of stretchable material (12) to connect to the kneerest (10) such that the flat sides of the length of stretchable material (12) pass over the anchor means (16); and(vi) the footrest (8), the kneerest (10), and the length of flexible material (12) are separable from each other.

A method of manufacture of foamed celluloid molded products, involving three steps for the manufacture of higher density (0.7 to 1.25 gm/cc) foamed celluloid products or simple geometry lower density (0.2 to 0.7 gm/cc) foamed celluloid products, and four steps for the manufacture of lower density foamed celluloid products of any geometry. The three step process involving: (1) providing small, uniform, pieces of celluloid; (2) presoaking the pieces in a physical blowing agent (PBA) under pressure; and (3) foaming at raised temperature a controlled quantity of the presoaked pieces in a mold—to obtain the desired shape and density. For a lower density foamed celluloid product, of any moldable geometry, the steps are to: (1) small pieces of celluloid, that (2) have been presoaked in a PBA, are (3) pre-expanded to an intermediate density, and then (4) foam the desired lower density foamed product in a mold at raised temperature.

Bimetallic alloys prepared in a ball milling process, such as iron nickel (FeNi), iron palladium (FePd), and magnesium palladium (MgPd) provide in situ catalyst system for remediating and degrading nitro explosive compounds. Specifically, munitions, such as, 2,4,6-trinitrotoluene (TNT), cyclo-1,3,5-trimethylene-2,4,6-trinitramine (RDX), nitrocellulose and nitroglycerine that have become contaminants in groundwater, soil, and other structures are treated on site to remediate explosive contamination.

A batch reactor process for the synthesis of potassium 5,7-dinitro-[2,1,3]-benzoxadiazol-4-olate-3-oxide (KDNP) from 3-bromo-2,4,6-trinitroanisole (ETNA) includes adding BTNA to a reaction vessel containing potassium azide (KN3) and water (H2O). The resulting mixture is heated to 90° C. followed by cooling to room temperature and agitating the final solution. The precipitate KDNP product is recovered by filtration.

A method for processing explosives containing a high loading of CL-20 may advantageously include a binder system having naphthenic oil and/or paraffinic oil. Solid energetic ingredients are added into the binder system and mixed to form a free-flowing suspension in which the solid energetic ingredients are homogeneously mixed and coated with the binder system. The binder system is then cured and cast to form a cross-linked explosive.

The invention provides for a receptor, capable of binding to a target molecule, linked to a hygroscopic polymer or hydrogel; and the use of this receptor in a device for detecting the target molecule in a gaseous and/or liquid phase. The invention also provides for a method for detecting the presence of a target molecule in the gas phase using the device. In particular, the receptor can be a peptide capable of binding a 2,4,6-trinitrotoluene (TNT) or 2,4,-dinitrotoluene (DNT).

Clothing iron including a sole (1) having a bottom side with a sliding surface (11) coming into contact with cloth and comprising at least one steam-supplied recess (10), the recess (10) being bounded on its entire periphery by the sliding surface (11) in such a manner that the recess (10) forms a steam diffusion cavity that is surrounded by the sliding surface (11) when the sole (1) is applied to the cloth being ironed, characterized in that the depth of the recess (10) is greater than or equal to 1 mm.

A system and method for using color to indicate a state of a home appliance, such as an iron. The iron has a sole plate and a water tank in fluid communication with the sole plate, a heater for heating the sole plate, a sensor for sensing a temperature of the sole plate, a user interface for setting a desired temperature for the sole plate, and a controller in communication with user interface and the sensor for controlling the heater. An illumination device under the control of the controller is provided to illuminate the water tank, particularly the interior thereof, in a color that is representative of a state of the iron, such as a power condition of the iron and/or a temperature of the sole plate.

Ironing board consisting of a top supported by at least one leg with two sections connected to one another by hinge; said hinge allows lower segment of leg to pivot between an unfolded position, in which said lower segment forms an extension of upper segment of leg, and a folded position, in which lower segment is folded in the direction of upper segment, wherein said hinge contains a mechanism to lock the lower segment in an unfolded position and at least one unlocking button to deactivate the locking mechanism to allow lower segment to rotate into the folded position.

Ironing board comprising a frame supporting a top and at least two legs joined to the frame, one of the legs having an upper end pivotably mounted on a back end of the frame, the other leg having an upper end slidably mounted on said frame, the two legs being connected to one another by a pivot linkage and movable between a storage position, and a working position.

A device for treating fabrics comprising a cabinet, said cabinet comprising: a shell having an interior surface, said shell forming an opening; the device further comprising: at least a first and a second spray head positioned upon said interior surface of said shell, the first spray head comprising a multitude of spray nozzles and the second spray head comprising at least one spray nozzle, wherein in at least one first direction the first spray head produces a spray pattern comprising a sequence of a first spray-on area, a first spray free area, and a second spray-on area and in said first direction the second spray head produces a spray pattern comprising at least a third spray-on area and wherein the third spray-on area covers at least a portion of the first spray free area.