Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/02—Spray pistols; Apparatus for discharge
  • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
  • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
  • B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
  • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
  • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
  • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
  • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
  • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
  • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/02—Spray pistols; Apparatus for discharge
  • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge

Definitions

• the present invention relates to the field of spray nozzles and, more particularly, agricultural spray nozzles. Specifically, the present invention relates to an anti-drift spray nozzle, that is to say, limiting the losses of sprayed product.
• liquids any medium that can be sprayed and, more particularly, any solution or suspension regardless of its viscosity and surface tension.
• the principle of spraying takes advantage of the properties liquids, namely, that they are inextensible and incompressible, and that they have no shape of their own, but that they conform to the form they pass through. More particularly, the spraying consists of splitting a liquid vein into a multitude of more or less fine droplets.
• the spraying devices consist of a reservoir containing the liquid, a chamber for pressurizing said liquid, one or more ejection pipes and, at the end of said pipes, nozzles for spraying. .
• the main purpose of the nozzles is to ensure the fragmentation of the liquid, while controlling the flow, the size of the drops and the spray angle.
• the flow rate is determined mainly by the section of the nozzle orifice, but it also depends on the properties of the sprayed liquid itself, namely its density, its viscosity or its surface tension. Indeed, it is obvious that, at constant pressure, the more a liquid will be dense and / or viscous the lower the spraying rate. With regard to surface tension, under the action of intermolecular forces, the free surface of liquids behaves like a thin elastic membrane which tends to be as small as possible. As a result, a liquid having a very high surface tension will be difficult to spray and the supply pressure will have to be considerably increased to ensure proper spraying.
• a size of drops is also important. For example, for a spray requiring a maximum exchange between the sprayed liquid and its immediate environment, it will be necessary to choose a type of nozzle with the finest droplet fineness. On the other hand, if the objective is targeted spraying at a long distance, it will be necessary to choose the type of nozzle giving relatively large droplets. In addition, the type of nozzle selected will have to take into account the spraying rate because the lower the flow rate and the higher the pressure, the smaller the size of the droplets will tend to decrease.
• a minimum pressure is essential for the spray angle to be properly formed. Insufficient pressure does not provide enough kinetic energy to the liquid particles to form a correct jet and too high a pressure causes a decrease in the formed angle. However, the management of these parameters is not sufficient to ensure a good spraying performance because other external phenomena are added. In addition to problems related to improper use of nozzles, soil leaching or uncontrolled wear of said nozzles, there is a phenomenon of drift.
• the phenomenon of drift which generally consists of the spread of the sprayed liquid in the air, is a problem that has been studied for a long time and many attempts have been made to achieve a spray nozzle limiting the drift of the product as much as possible.
• drift phenomenon is partly related to the particle size of the drops at the outlet of the nozzle. More particularly, the more the drops have a large diameter, the less they will be sensitive to drift.
• One way to limit drift is therefore to create a pressure drop within the nozzle, creating for example a decompression chamber, thus allowing, as described above, to obtain droplets of larger diameter.
• Spray nozzles therefore play a major role in the effectiveness of the spraying.
• nozzles There are currently several types of nozzles that can be classified, in general, into two categories depending on the shape of jets they can achieve, namely flat jets or conical jets.
• slot nozzles which generally operate on the principle of impaction, that is to say that one or more vein (s) of fluid having a specific speed is (are) brought (s), by a device whatever, to get in touch with a wall or with each other so as to form a spray jet having specific characteristics depending on the fluid parameters, the geometry of the wall or the medium in which the jet will be emitted.
• Such nozzles generally consist of an impactor or injector and a calibration pellet.
• said impactor / injector and calibration patch may be coupled to a venturi system.
• the main purpose of the impactor / injector is to ensure the formation of drops and to modify the spray angle.
• the addition of a calibration patch makes it possible, in general, to modify the flow rate of the spray.
• venturi that is to say a structure whose section passes through a minimum, which ensures the bursting of bubbles pulverized on the target while increasing their speed.
• the working pressures for slot nozzles do not exceed 5 bar and their design is not adapted to withstand long pressures ranging from 10 to 25 bar.
• spray jets forming cones, hollow or solid are less subject to drift phenomena than are conventional jets, such as flat jets or straight, obtained with said slot nozzles .
• the so-called “conical spray” nozzles generally operate on the principle of the gyration of the fluid, that is to say that the liquid is rotated within the nozzle, which allows, at the outlet of the nozzle, to obtain a stream of conical shape, solid or hollow, covering a large surface.
• nozzles generally consist of a piece called “convergent”, responsible for the formation of the drops and the spray angle, and a piece called “divergent”, responsible for the size of the drops but also the flow rate. spray. As in the case of slot nozzles, it can be added a venturi.
• Anti-drift nozzles are also known comprising, in addition to a divergent and a convergent, a calibration pellet.
• a divergent generally in the form of a helix, which may have, in general, two blades, or more, each blade defining with the blade which is directly adjacent thereto a channel through which the sprayed liquid.
• propellers are conventionally referred to as "side channel propellers”.
• the present invention aims to overcome all these disadvantages by providing a spray nozzle constituted, in a manner known per se, a body defining an axial cavity and having, at one of its ends, an orifice of admitting liquid to be sprayed and, at the other end, a spray orifice, said nozzle comprising, housed in its cavity, from upstream to downstream with reference to the direction of flow XX 'of the liquid, a pellet having an axial passage for calibrating the flow of liquid which communicates with said intake orifice, a so-called “divergent” part whose geometry is adapted to divide the flow of liquid into fillets and to set them in rotation, and a piece called “convergent "having a downstream passageway communicating with said spray orifice and having a geometry suitable for gathering said fillets into a single jet and contributing to the desired spray angle; Calibration island being secured to a cap threaded in the cavity of the nozzle body and said convergent being integral with said nozzle body, the
• said calibration pad, diverging and converging are arranged so that they are respectively formed, on the one hand, between said pad and said divergent and, on the other hand, between said divergent and said convergent, a first and a second bedrooms.
• Said first chamber has the primary function of ensuring the deployment of the liquid from the pellet to the divergent.
• a second function of said first chamber in the case of using a venturi, is to allow mixing between the liquid and the air supplied by said venturi and thus to promote the formation of drops.
• This chamber is, in a preferred embodiment, in the form of a funnel oriented narrow side upstream but may be in any form that is provided that it does not mask the orifices of the diverging.
• the second chamber it is necessary for the rotation of the liquid.
• natural air is drawn in through the spray orifice and converges, resulting in the formation of an "air column" within said second chamber.
• the liquid, coming out of the divergent, subjected to a centrifugal force, will come to form a layer around said air column and, thereby, to rotate uniformly in the manner of a "tornado".
• the liquid can then be ejected through the spray orifice of said nozzle in the form of a conical jet in rotation.
• the divergent is immobilized in the cavity of the nozzle body, downstream side, by simply pressing against an appropriate profile zone of the wall of said cavity and side upstream, by said plug.
• the appropriate profile area of the wall of the cavity takes the form of a shoulder or a conical bearing.
• the divergent is in free contact, downstream side, with the nozzle body and, upstream side, with the plug.
• the divergent is immobilized directly on the plug, for example, by screwing, clipping, etc.
• This immobilization of the divergent on the plug may be combined or not with the support on a suitable profile area of the cavity of the nozzle body. If the divergent is immobilized only on the plug and is thus "suspended" above the convergent, the method of attachment must be strong enough to withstand the pressure exerted by the flow of the liquid to be sprayed, while remaining easily removable by a user.
• the meeting between the divergent and the plug can be done by providing, on the upstream face of the divergent, a protrusion may be received in a recess of corresponding shape formed in the downstream face of the plug and to be retained.
• the meeting between the plug and the diverging not only facilitates the handling of the various constituents of the nozzle object of the invention, but also promotes the retention in place, and along the same axis, of these different constituents.
• the plug With respect to the plug, it must be hermetically held in the nozzle body. Although any technique known to those skilled in the art to provide such a hold can be used, a preferred means is to hold said plug in the nozzle body by friction between an O-ring providing a seal between said plug. and said body.
• Another characteristic of the nozzle object of the present invention lies in the shape of the divergent used. Indeed, as described above, it is known to use divergent in the form of helices whose blades define channels transforming the axial energy of the liquid to be sprayed into centrifugal energy. In addition to the fact that such propellers are fragile and have relatively large sizes, they require the presence of a space, called mixing chamber, to pass the liquid from the axis of the venturi to the periphery of the propeller .
• the divergent used is no longer a helix but a disc having oblique through passages and / or helical portion.
• This disk may be flat-faced or have, in its central zone, protruding shapes which will be described later.
• the disk preferably has a size of between 5 and 10 mm, the nozzle body having a corresponding inner diameter for a smooth friction threading.
• the length of the nozzle it is preferably between 11 and 25 mm and more particularly is 18 mm.
• a further advantage of the present invention is that it allows the size of the drops to be modified while keeping a constant spraying rate.
• Another advantage is that it is possible to equip the nozzle of one or the other of several interchangeable divergent (differing in size, shape, etc. ..) as needed.
• Each divergent is preferably reversible, which avoids the user to wonder about the correct direction of installation in the nozzle body.
• the divergent in the case where the divergent is not reversible, it preferably comprises a reference distinguishing its upstream face from its downstream face.
• the diverging passages have an "overall area" of from about 3 to about 15 mm.
• the divergent may comprise from 1 to about 6 orifices, but preferably it comprises from 2 to 4. In any event, it should be noted that the important point does not lie in the number of orifices but in the overall surface occupied by all of said orifices.
• the spraying orifice of the convergent nozzle of the present invention can take the plane circular shape of the outlet of a cylindrical channel, but in advantageous embodiments, the cylindrical channel can open, downstream, in a space concave elliptical or in a space whose complex shape results from a hollow formed in a convex shape and whose axis of symmetry is perpendicular to that of said channel. More particularly, it is preferred that the largest dimension of said elliptical or complex shape space be between about 1 and about 3 mm.
• the plug has, downstream of said calibration chip, transverse air intake passages, adapted to come in the alignment of air access orifices formed in the body. nozzle, and opening at a calibration-divergent pastille passage, so as to create a venturi.
• the various components of the nozzle object of the present invention can be made of any suitable material, such as plastic materials, cast or sintered metals or ceramics.
• ceramics such as ceramics consisting of alumina (aluminum oxides), zirconia
• the present invention envisages, because of the modularity of the nozzle, a spray kit which comprises a nozzle according to the invention and one or more additional divergents differing from that included in the nozzle by the number of passages and / or the diameter of the passages and / or the geometry of the passages and / or the cross sectional geometry of the divergent.
• a spray kit which comprises a nozzle according to the invention and one or more additional divergents differing from that included in the nozzle by the number of passages and / or the diameter of the passages and / or the geometry of the passages and / or the cross sectional geometry of the divergent.
• Such a kit allows the user to use, at reduced cost, one and the same nozzle in a large number of applications by changing only the divergent. So, the same nozzle can be adapted to various pressures, drop sizes, flow rates, etc.
• the present invention also relates to the use of a nozzle or kit, as described above, in an agricultural spraying device.
• FIGS. 1 and 2a show a section of a first embodiment of the nozzle according to the present invention
• Figure 2a shows a section of a second embodiment of the nozzle according to the present invention
• Figure 2b differs from Figure 2a only by the exploded representation of the constituent elements of the nozzle
• Figure 3a shows a section of a third embodiment of the nozzle according to the present invention
• Figure 3b differs from Figure 3a only by the exploded representation of the constituent elements of the nozzle, the nozzle body and the convergent being omitted
• 4a to 4d show, seen from above, a set of divergent objects of the present invention, a sectional view along the line A-A of Figure 4a is also shown in this figure 4a
• FIGS. 6a to 6d show, in section, different convergent profiles according to the invention, a view from below of the convergents of FIGS. 6a, 6b. , 6 ⁇ and 6d being also represented in said figures.
• FIG. 1 which indicates the direction of flow of the liquid flow by F, represents a nozzle 11 according to the present invention.
• This nozzle 11 consists of a nozzle body 12 in the form of cup whose bottom has a opening 13.
• the internal geometry of said nozzle body 12 determines a first shoulder 14 and, disposed downstream at a predetermined distance from said first shoulder, a second shoulder 15 so that the cavity of the nozzle body 12 has three zones of decreasing cross-sectional area. upstream to downstream (section __ x upstream of the first shoulder 14, section Z 2 between the first and second shoulders 14 and 15, section Z 3 downstream of the second shoulder 15).
• the nozzle according to the invention further comprises a bi-cylindrical piece 16, referred to as a "convergent" piece, having an upstream portion of a diameter only slightly smaller than that of the second section Z 2 of the cavity of the nozzle body and a portion downstream of a diameter slightly less than that of the third section Z 3 of said cavity, which allows it to slide in said second section while coming to rest, at the level of its change of section, on one shoulder 15, the game being so weak between the pieces that the convergent 16 gets stuck in the bottom of the cavity of the nozzle body when inserted therein.
• the convergent 16 has a channel 17 along the axis XX 'of the nozzle.
• the convergent 16 is dimensioned such that its downstream face 18 is slightly set back relative to the opening 13 of the nozzle body.
• the nozzle further comprises a piece 19, called “divergent", which takes the form of a flat-faced disc whose diameter is a little smaller than that of the first section Z ⁇ of the cavity of the nozzle body, which allows it to slide in this cavity while coming to rest on one shoulder 14.
• the divergent 19 has passages in helical portion 20 of which only one is visible in Figure 1.
• the nozzle 11 further comprises a bicylindrical plug 21 having an upstream portion 22 of section greater than that of the first zone Z x of the cavity of the nozzle body and a downstream portion 23 of section a little smaller than that of said first zone Z x so that said downstream part 23 can slide in said zone Z x while the upstream part 22 bears on the upstream face of the nozzle body 12.
• a groove 24 is formed in the periphery of the downstream part 23 and receives an O-ring 25 .
• the downstream portion 23 has a height such that, when the upstream portion 22 bears on the upstream face of the nozzle body 12, the downstream face 26 of the plug bears on the upstream face of the divergent portion 19.
• the plug 21 has a cavity whose section varies from upstream to downstream. More specifically, the cavity firstly has a cylindrical portion 28 of a first diameter, then a cylindrical portion 29 of a second diameter smaller than the first diameter so that a shoulder 30 is determined between these two portions 28 and 29 then a frustoconical portion 31 which defines a first flared chamber downstream. The largest diameter of said chamber 31 is such that no passage opening 20 of the divergent 19 is covered by the plug 21.
• a second chamber 32 is defined between the downstream face of the divergent 19 and the upstream face of the convergent 16.
• the nozzle finally comprises a cylindrical calibration pad 33, with a diameter slightly smaller than that of the cylindrical portion 28 of the plug cavity 21 and of a height less than that of said cylindrical portion, so that said pellet 33 can be inserted into this part and jam there by resting on the shoulder 30, with its upstream face recessed relative to that 27 of the plug, defining an inlet orifice 34.
• An axial channel 35 is formed in the pellet 33.
• the nozzle 11 is mounted simply by stacking the parts in the nozzle body 12: first the convergent 16, then the diverging part 19, then finally the cap 21 provided with its O-ring 25 and the calibration disc 33. It will be understood that the diverging portion 19 is completely free and is immobilized between the downstream face 26 of the cap 21 and the shoulder 14, the plug 21 being itself held in place by the sliding resistance opposed by the O-ring 25. .
• the calibration pad 33 and the convergent 16 are forcibly inserted in their respective housing so that they remain in place. They are however removable by reverse push, if desired.
• the liquid to be sprayed passes under pressure through the inlet orifice 34 and the channel 35 of the calibration pellet 33 before being thrown into the first chamber 31 where it undergoes a first pressure drop.
• the liquid then enters the passages 20 of the divergent 19, where its energy, hitherto axial, is transformed into centrifugal energy due to the configuration of said passages 20 which force the liquid to take a circular orientation.
• the liquid then emerges in the second chamber 32 where it "sticks" around a column of air naturally formed by suction of the outside air through the spray orifice 13 of said nozzle body 12 and the channel 17 convergent 16.
• the liquid comes to form a more or less thick layer around said air column in the chamber 32 and it is this physical phenomenon that allows to project through the channel 17 and the orifice 13 a jet of hollow cone type with anti-drift effect.
• FIGS. 2a and 2b show another embodiment of the present invention in which a venturi 42 is provided.
• the second part cylindrical as provided in the cavity of the plug 21 of the embodiment of Figure 1 is replaced by an axial convergent-divergent nozzle 43 in communication with two transverse passages 44. passages 45 vis-à-vis are provided in the nozzle body 12.
• the nozzle 43 opens into the upstream end of the first chamber 31.
• the chamber 31 ensures the mixing of the injected air and the liquid to be sprayed, which facilitates the obtaining of drops.
• the nozzle of Figures 2a and 2b also differs from that of Figure 1 in that the first cylindrical portion of the plug cavity 41 is surmounted by a flared portion 46 so that the calibration pad 33 is further back relative to the upstream face 27 of the plug as in the case of the nozzle of Figure 1.
• FIGS. 3a and 3b represent yet another embodiment of the invention, which differs essentially from that of FIGS. 2a and 2b by the mounting mode of the divergent 50.
• the frustoconical part 31 of the The plug cavity 41 of FIGS. 2a, 2b is replaced, in the plug 51, by a substantially cylindrical portion 52 which is followed by a portion 53 sufficiently flared so that the plug 51 does not cover the access to the passages such as 20 of the divergent 50.
• the upstream face of the divergent 50 has a substantially cylindrical axial protuberance 54 of a diameter only slightly smaller than that of the portion 52 of the cavity of the plug 51 so that it can be inserted and retained by friction.
• the cap respectively 41 and 51, is extractable from the nozzle body, the divergent being either simultaneously extracted (in the case of the divergent 50 of FIGS. 3a, 3b), or separately extracted, simply by returning the nozzle (case of the divergent 19 of Figures 2a, 2b).
• Figures 4a to 4d represent, in turn, several divergent models, seen from above, and in accordance with the object of the present invention.
• these divergents are all in the form of disks and they differ from each other by the number and / or the configuration of the passages therein.
• the divergent 60a of Figure 4a has two passages 61a oblique.
• the divergent 60b of Figure 4b also has two passages 61b but in helical portion.
• the divergent 60c of Figure 4c has three passages 61c similar to the passages 61b and the divergent 60d of Figure 4d has four passages 61d similar to the passages 61a.
• these passages 61a-61d are distributed symmetrically over the entire surface of the discs 60a-60d and are at least oblique with respect to an axis perpendicular to the surface of the discs.
• the angle formed with said axis may be greater or lesser and preferably between about 30 and about 50 ° with respect to the axis of the workpiece.
• FIGS. 5a to 5f each represent, in a non-reversible (FIGS. 5a-5c) or reversible (FIGS. 5d-5f) form, divergents that can be used in a nozzle according to the present invention. More particularly, FIGS. 5a and 5d show divergents 70a, 70d respectively presenting on their upstream surface or on the upstream and downstream faces, a conical protuberance 71a or biconical 71d full, the interest of a biconical protuberance being of power. use the divergents reversibly.
• FIGS. 5c and 5f show divergents 70c, 70f which differ from those of Figures 5a, 5d in that the conical shape of the protuberances 71a, 71d is replaced by a hemispherical shape 71c, 71f.
• the divergent portions of FIGS. 5b and 5e show the same shapes as those of FIGS. 5c and 5f for their protuberances 71b, 71c but, instead of being solid, these protuberances are pierced with a passage 72b, 72e.
• This passage 72b allows the fluid to produce a solid spray cone, in opposition to the usual hollow spray cones.
• Figures 6a to 6d represent, for their part, different convergent profiles according to the invention.
• Figure 6a shows the convergent 16 used in the embodiment of Figures 1, 2a-b and 3a-b.
• the convergent 16b of Figure 6b differs in that instead of having a cylindrical channel 17 over its entire length, its channel 17b has a frustoconical portion in its upper half and a cylindrical portion in its lower half.
• Figure 6c shows another embodiment of a convergent 16c which differs from the convergent 16b in that its downstream face is not flat.
• the downstream face of the convergent 16c is convex and hollowed out of a groove 80 into which the passage 17c opens.
• the modification of the circular spraying cone into an elliptical cone makes it possible to improve the exchange efficiency between the air flow. carrier and the spray jet.
• the flattening of the jet corresponds approximately to a factor of 2 between the largest angle, ideally 80 °, and the smallest, ideally 40 °.
• the elliptical jet forms an intermediate between, on the one hand, a slotted nozzle with regard to the orientation of the jet with respect to the nozzle manifold and, on the other hand, a jet nozzle. conical for the trajectory aspect of the drops allowing an effective penetration into the vegetation.
• the nozzle jet should be oriented with respect to the nozzle manifold so as to provide the maximum angle with slight incidence parallel to the nozzle manifold. This results in an increase in the efficiency of the amount of liquid sprayed onto the target.

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• Nozzles (AREA)
• Fire-Detection Mechanisms (AREA)
• Special Spraying Apparatus (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

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• 2002
  • 2002-04-08 FR FR0204335A patent/FR2838069B1/fr not_active Expired - Lifetime
• 2003
  • 2003-04-08 DE DE60302342T patent/DE60302342T2/de not_active Expired - Lifetime
  • 2003-04-08 EP EP03745834A patent/EP1492624B8/de not_active Expired - Lifetime
  • 2003-04-08 US US10/510,448 patent/US7243861B2/en not_active Expired - Lifetime
  • 2003-04-08 AT AT03745834T patent/ATE309867T1/de not_active IP Right Cessation
  • 2003-04-08 WO PCT/FR2003/001103 patent/WO2003084669A1/fr not_active Ceased
  • 2003-04-08 AU AU2003242822A patent/AU2003242822A1/en not_active Abandoned
  • 2003-04-08 ES ES03745834T patent/ES2253693T3/es not_active Expired - Lifetime

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