FR2555469A1 - Improvements to agricultural spraying installations - Google Patents
Improvements to agricultural spraying installations Download PDFInfo
- Publication number
- FR2555469A1 FR2555469A1 FR8319076A FR8319076A FR2555469A1 FR 2555469 A1 FR2555469 A1 FR 2555469A1 FR 8319076 A FR8319076 A FR 8319076A FR 8319076 A FR8319076 A FR 8319076A FR 2555469 A1 FR2555469 A1 FR 2555469A1
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- FR
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- Prior art keywords
- ramp
- pump
- installation
- pipe
- installation according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
-
- 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
- B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
-
- 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
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
-
- 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
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3093—Recirculation valves, i.e. the valve element opens a passage to the nozzle and simultaneously closes at least partially a return passage the feeding means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
- B05B12/088—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve the sensing element being a flexible member, e.g. membrane, diaphragm, bellows
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
La présente invention a trait aux installations de pulvérisation employées dans l'agriculture et elle vise plus particulièrement (car c'est dans ce cas que son application semble devoir présenter le plus d'intérêt), mais non exclusivement, les installations mobiles du type tracté ou porté. The present invention relates to spraying installations used in agriculture and it relates more particularly (because it is in this case that its application seems to be of most interest), but not exclusively, mobile installations of the towed type or worn.
On sait que les installations de ce genre comprennent en principe une cuve remplie du liquide de traitement, une ou plusieurs rampes d'épandage pourvues d'une série de buses de pulvérisation, et une pompe de distribution agencée de manière à prelever le liquide de traitement de la cuve pour l'envoyer sous pression dans les buses des rampes. Si un tel système fonctionne de manière satisfaisante avec des liquides de traitement peu chargés, il nten va pas de même lorsqu'on a affaire à des bouillies renfermant des éléments solides en suspension à haute concentration, ce qui survient de plus en plus fréquemment avec les traitements phyto-sanitaires maintenant proposés. It is known that installations of this kind in principle comprise a tank filled with the treatment liquid, one or more spreading booms provided with a series of spray nozzles, and a distribution pump arranged so as to withdraw the treatment liquid. of the tank to send it under pressure in the nozzles of the ramps. While such a system works satisfactorily with lightly loaded treatment liquids, this is not the case when dealing with slurries containing solid elements in suspension in high concentration, which occurs more and more frequently with phytosanitary treatments now offered.
En pareil cas en effet, lors de l'arrêt de la pulverisation ou lors de la fermeture de l'une des rampes d'épandage de l'installation, le produit de traitement qui circule entre l'organe de fermeture (vanne ou robinet) et la ou les rampes concernées se trouve emprisonne et tend à se déposer à l'interieur des canalisations et des rampes. Or on conçoit qu'un tel dépôt provoque, de manière plus ou moins fréquente et en fonction de la nature du produit de traitement et du temps d'arrêt, l'obstruction partielle ou totale des rampes et des buses, en obligeant de la sorte l'utilisateur à procéder à un démontage complet pour nettoyage. In such a case, in fact, when the spraying stops or when one of the spreading booms of the installation is closed, the treatment product which circulates between the closing member (valve or tap) and the ramp (s) concerned is trapped and tends to settle inside the pipes and ramps. Now it is understood that such a deposit causes, more or less frequently and depending on the nature of the treatment product and the downtime, partial or total obstruction of the ramps and nozzles, thereby forcing the user to carry out a complete disassembly for cleaning.
C'est à cet inconvénient que la présente invention entend remédier, et ce en maintenant toujours en mouvement le liquide de traitement, que ce soit au cours de la pulvérisation ou pendant les périodes de fermeture. It is to this drawback that the present invention intends to remedy it, and this by always keeping the treatment liquid in motion, whether during spraying or during closing periods.
A cet effet, l'invention consiste essentiellement d'une part à alimenter en excès les rampes d'épandage, le liquide en excédent entant ramené à la cuve par une canalisation de retour orientée à l'oppose de la canalisation d'alimentation, et d'autre part à engendrer automatiquement, lors de la fermeture de l'une au moins des rampes, un effet de dépression dans la canalisation d'alimentation, afin de susciter la formation d'une circulation continue en sens inverse de celui correspondant à la pulvérisation, cette circulation opposée assurant le balayage des rampes et des canalisations en évitant de la sorte toute décantation et tout risque d'obstruction. To this end, the invention essentially consists on the one hand in supplying the spreading ramps in excess, the excess liquid entering being brought back to the tank by a return pipe oriented opposite the supply pipe, and on the other hand to automatically generate, when closing at least one of the ramps, a vacuum effect in the supply pipe, in order to cause the formation of a continuous circulation in the opposite direction to that corresponding to the spraying, this opposite circulation ensuring the sweeping of the ramps and pipes, thereby avoiding any settling and any risk of obstruction.
I1 va de soi que le fonctionnement correct d'une telle installation implique que les buses de pulvérisation des rampes fermes ne puissent être traversées par l'air ambiant, de manière 9 ne pas perturber ou même anihiler l'effet de dépression engendré automatiquement pour permettre la circulation de balayage. Un tel résultat peut être aisément obtenu en adaptant sur les buses des rampes des éléments
anti-goutte de type connu.It goes without saying that the correct operation of such an installation implies that the spray nozzles of the firm booms cannot be traversed by the ambient air, so as not to disturb or even annihilate the effect of depression generated automatically to allow scanning traffic. Such a result can be easily obtained by adapting elements of the ramps to the nozzles
anti-gout of known type.
On observera par ailleurs que la fermeture des rampes et la génération automatique de l'effet de dépression sont susceptibles d'être obtenues à l'aide de vannes du type trois voies propres à permettre de relier la canalisation d'alimentation de chaque rampe soit avec le refoulement de la pompe, soit avec une canalisation soumise à un effet de succion. Un tel effet peut être réalisé en raccordant la canalisation-concernée à l'aspiration de la pompe de distribution ou d'une pompe de brassage, ou au col d'un Venturi prévu sur le refoulement de-l'une ou l'autre de ces pompes. It will also be observed that the closure of the ramps and the automatic generation of the vacuum effect are likely to be obtained using valves of the three-way type suitable for connecting the supply pipe of each ramp either with the pump discharge, either with a pipe subjected to a suction effect. Such an effect can be achieved by connecting the pipe-concerned to the suction of the distribution pump or of a stirring pump, or to the neck of a Venturi provided on the discharge of one or the other of these pumps.
Le dessin annexé, donne à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer
Fig. 1 est un schéma montrant l'agencement général d'une installation de pulvérisation comportant application des perfectionnements suivant l'invention.The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing.
Fig. 1 is a diagram showing the general arrangement of a spraying installation comprising application of the improvements according to the invention.
Fig. 2 est une coupe de détail d'un élément anti-goutte monté sur chacune des buses de pulvérisation des rampes de l'installation suivant fig. 1. Fig. 2 is a detail section of an anti-drip element mounted on each of the spray nozzles of the installation booms according to FIG. 1.
Fig. 3 reproduit fig. 1 après fermeture des rampes. Fig. 3 reproduced fig. 1 after closing of the ramps.
En fig. 1, la référence 1 désigne la cuve usuelle de l'installation, remplie du liquide de traitement ou bouillie à pulvériser. Cette bouillie est aspirée par une pompe de distribution 2 (usuellement du type à pistons ou à membranes) qui la refoule sous pression à travers une canalisation 3, laquelle aboutit à un collecteur 4. Ce dernier est équipé de canalisations 5 pour l'alimentation des rampes d'épandage 6 de l'installation ; dans l'exemple de réalisation envisagé, l'on a supposé que ces.rampes étaient au nombre de deux, mais il va de soi que l'installation est susceptible d'être dotée d'un nombre quelconque de rampes 6. In fig. 1, reference 1 designates the usual tank of the installation, filled with treatment liquid or sprayed spray. This slurry is sucked up by a distribution pump 2 (usually of the piston or membrane type) which discharges it under pressure through a pipe 3, which leads to a manifold 4. The latter is equipped with pipes 5 for supplying the spreading booms 6 of the installation; in the exemplary embodiment envisaged, it has been assumed that there are two of these ramps, but it goes without saying that the installation is capable of being provided with any number of ramps 6.
A la façon en soi connue, chacune de ces rampes 6 comporte une série de buses de pulvérisation 7 et l'on notera qu'a chaque buse 7 est associé un élément anti-goutte du type de celui schématiquement représenté en fig. 2, comprenant une membrane déformable 8 que des moyens élastiques (ressort 9) tendent à maintenir appliquée contre un siège 10a ménagé dans la canalisation 10 qui relie la buse envisagée à l'espace intérieur de la rampe. On conçoit que si la membrane 8 est bien soulevée par la pression du liquide qui emplit la rampe et qui peut ainsi aboutir à la buse 7 lorsque la rampe 6 reçoit la pression du refoulement de la pompe 2, dès que cette pression cesse ladite membrane vient obturer le siège 10a en interdisant toute communication entre l'espace intérieur de la rampe et l'atmosphère extérieure. In the manner known per se, each of these booms 6 comprises a series of spray nozzles 7 and it will be noted that each nozzle 7 is associated with an anti-drip element of the type of that schematically represented in FIG. 2, comprising a deformable membrane 8 that elastic means (spring 9) tend to keep applied against a seat 10a formed in the pipe 10 which connects the envisaged nozzle to the interior space of the ramp. It is understood that if the membrane 8 is lifted by the pressure of the liquid which fills the ramp and which can thus lead to the nozzle 7 when the ramp 6 receives the pressure from the pump 2 discharge, as soon as this pressure ceases said membrane comes close the seat 10a by preventing any communication between the internal space of the ramp and the external atmosphere.
Conformément à l'invention, le débit fourni par la pompe 2 a chaque rampe 6 est supérieur à celui maximal qui peut s'écouler à travers ladite rampe. Le liquide en exces est ramené à la cuve 1 par une canalisation de retour 11 (fig. 1) dont le débouché dans la rampe est oriente axialement, à l'opposé du débouché de la canalisation d'alimentation 5.Par ailleurs, entre le collecteur de refoulement 4 et l'entree de la rampe 6 correspondante, chaque canalisation d'alimentation 5 est équipée d'une vanne 12 du type trois voies", qui permet de raccorder la partie aval de ladite canalisation 5 soit avec la partie amont liée au collecteur 4, soit avec une dérivation 13 ; les deux dérivations 13 aboutissent à un collecteur 14, pourvu d'une canalisation 15 qui débouche au niveau du col d'un Venturi 16 inséré sur la canalisation de refoulement 3 de la pompe 2. According to the invention, the flow rate supplied by the pump 2 to each ramp 6 is greater than the maximum that can flow through said ramp. The excess liquid is brought back to the tank 1 by a return pipe 11 (FIG. 1) whose outlet in the ramp is oriented axially, opposite the outlet of the supply pipe 5. Furthermore, between the delivery manifold 4 and the inlet of the corresponding ramp 6, each supply pipe 5 is equipped with a valve 12 of the three-way type ", which makes it possible to connect the downstream part of said pipe 5 either with the upstream part linked at the manifold 4, either with a branch 13; the two branches 13 lead to a manifold 14, provided with a pipe 15 which opens at the neck of a Venturi 16 inserted on the discharge pipe 3 of the pump 2.
Il convient d'observer qu'à la manière usuelle cette canalisation 3 se raccorde, en aval du Venturi 16, avec un retour 17 équipé d'une soupape ou régulateur 18 dispose en amont de la cuve 1. L'ensemble 17-18 permet le fonctionnement de la pompe 2 lorsque toutes les rampes 6 ont été fermées. It should be observed that, in the usual way, this pipe 3 is connected, downstream of the Venturi 16, with a return 17 equipped with a valve or regulator 18 located upstream of the tank 1. The assembly 17-18 allows the operation of pump 2 when all the ramps 6 have been closed.
-L'utilisation et le fonctionnement de l'installation ci-dessus décrite découlent des explications qui précèdent et se comprennent aisément. -The use and operation of the above described installation follow from the above explanations and are easily understood.
Lorsque les deux rampes 6 sont ouvertes, la circulation du liquide de traitement s'effectue suivant le sens indiqué par les flèches de fig. 1. Le liquide est pompé dans la cuve 1 pour Cette refoule dans le- collecteur 4 et à travers les canalisations 5 en vue d'alimenter les rampes 6. Le liquide en excès est ramené à la cuve 1 par les canalisations de retour 11. La circulation s'effectue en continu et ne peut donner lieu à aucune décantation. When the two ramps 6 are open, the circulation of the treatment liquid takes place in the direction indicated by the arrows in FIG. 1. The liquid is pumped into the tank 1 for this discharge into the manifold 4 and through the pipes 5 in order to supply the ramps 6. The excess liquid is brought back to the tank 1 by the return pipes 11. Circulation is continuous and cannot give rise to any settling.
En fig. 3, on a par contre supposé que les deux rampes 6 avaient été amenées à la position de fermeture moyennant manoeuvre des vannes 12. La pompe 2 continue à refouler le liquide de traitement dans la canalisation 3, mais ce liquide est ramené à la cuve 1 par le retour 17, la soupape ou régulateur 18 s'ouvrant sous l'effet de la pression. In fig. 3, on the other hand, it was assumed that the two ramps 6 had been brought to the closed position by actuating the valves 12. The pump 2 continues to discharge the treatment liquid into the pipe 3, but this liquid is returned to the tank 1 by the return 17, the valve or regulator 18 opening under the effect of the pressure.
Dans ces conditions, l'effet d'aspiration ou de succion recueilli au col du Venturi 16 se fait sentir, à travers le collecteur 14, à l'intérieur des dérivations 13 et comme ces dernières sont reliées par les vannes 12 aux canalisations 5 et aux rampes 6, les canalisations de retour 11 prélèvent du liquide dans la cuve 1. Le liquide ainsi aspiré traverse successivement les rampes 6, les canalisations 5, les vannes 12, les dérivations 13 et le collecteur 14 pour s 'écouler par la canalisation 15 dans la canalisation de-refoulement 3.Under these conditions, the suction or suction effect collected at the neck of the Venturi 16 is felt, through the manifold 14, inside the branches 13 and as the latter are connected by the valves 12 to the pipes 5 and to the ramps 6, the return pipes 11 draw liquid from the tank 1. The liquid thus sucked successively passes through the ramps 6, the pipes 5, the valves 12, the branches 13 and the manifold 14 to flow through the pipe 15 in the discharge line 3.
Cette circulation, qui s'effectue suivant le sens indiqué par les flèches de fig. 3, ne peut évidemment survenir que par suite de l'obturation assurée par les membranes 8 au niveau de toutes les buses 7 des rampes d'épandage 8. En tout état de cause, le balayage opéré par le liquide en mouvement interdit efficacement tout risque d'obturation par décantation. This circulation, which takes place in the direction indicated by the arrows in FIG. 3, can obviously only occur as a result of the sealing provided by the membranes 8 at all the nozzles 7 of the spreading booms 8. In any event, the sweeping effected by the moving liquid effectively prohibits any risk obturation by decantation.
Un effet identique est obtenu dans le cas ou l'une seule des rampes 6 est fermée puisque seule cette rampe est soumise, par la manoeuvre de la vanne 12 correspondante, à l'effet d'aspiration provoqué par le Venturi 16, la ou les autres rampes restant convenablement alimentées. An identical effect is obtained in the case where only one of the ramps 6 is closed since only this ramp is subjected, by the operation of the corresponding valve 12, to the suction effect caused by the Venturi 16, the other ramps remaining suitably supplied.
On observera que l'effet de-depression nécessaire la contre-circulation de balayage est susceptible d'être obtenu de toute autre manière appropriée. Le Venturi 16 peut être branche sur le refoulement de la pompe de brassage fréquemment prévue dans les installations de pulvérisation agricoles en vue d'assurer I'homog6néisation du-liquide de traitement contenu dans la cuve 1, pompe dont le fonctionnement est totalement indépendant de celui de la pompe 2. En variante, la canalisation 15 peut être branchée sur la canalisation d'aspiration de la pompe 2 ou de la pompe de brassage, ce qui permet de se dispenser du Venturi 16. It will be observed that the effect of depression necessary for the sweeping counter-circulation can be obtained in any other appropriate manner. Venturi 16 can be connected to the discharge of the stirring pump frequently provided in agricultural spraying installations in order to ensure homogenization of the treatment liquid contained in the tank 1, a pump whose operation is completely independent of that of the pump 2. As a variant, the pipe 15 can be connected to the suction pipe of the pump 2 or of the stirring pump, which makes it possible to dispense with the Venturi 16.
Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qutà titre d'exemple, et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents. On conçoit en particulier qu'il y a lieu de prévoir sur les canalisations de retour 11 et/ou sur les canalisations d'alimentation 5, des dispositifs limiteurs de débit propres à permettre le réglage à la valeur désirée du débit d'alimentation des rampes 6. It should moreover be understood that the foregoing description has been given only by way of example, and that it in no way limits the field of the invention from which one would not depart by replacing the details of execution described by all other equivalents. It is understood in particular that it is necessary to provide on the return pipes 11 and / or on the supply pipes 5, flow limiting devices capable of allowing adjustment to the desired value of the supply flow of the ramps 6.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8319076A FR2555469B1 (en) | 1983-11-25 | 1983-11-25 | IMPROVEMENTS ON AGRICULTURAL SPRAYING FACILITIES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8319076A FR2555469B1 (en) | 1983-11-25 | 1983-11-25 | IMPROVEMENTS ON AGRICULTURAL SPRAYING FACILITIES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2555469A1 true FR2555469A1 (en) | 1985-05-31 |
| FR2555469B1 FR2555469B1 (en) | 1987-01-16 |
Family
ID=9294669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8319076A Expired FR2555469B1 (en) | 1983-11-25 | 1983-11-25 | IMPROVEMENTS ON AGRICULTURAL SPRAYING FACILITIES |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2555469B1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0283113A1 (en) * | 1987-02-17 | 1988-09-21 | Seagate Technology International | Apparatus for dispensing slurry to a workpiece |
| EP0384687A2 (en) * | 1989-02-24 | 1990-08-29 | Ormat Turbines (1965) Ltd. | Methods of and apparatus for evaporating and cooling liquid |
| EP0426226A2 (en) * | 1989-11-02 | 1991-05-08 | Imovilli Pompe - S.P.A. | Distribution apparatus for spray devices |
| FR2678181A1 (en) * | 1991-06-28 | 1992-12-31 | Pommier Guy | Spray boom |
| WO1996031118A1 (en) * | 1995-04-01 | 1996-10-10 | Brian George Knight | Spray apparatus |
| US5934561A (en) * | 1996-02-27 | 1999-08-10 | Knight; Brian George | Spray apparatus having an agitation line |
| WO2001095714A1 (en) * | 2000-06-16 | 2001-12-20 | Richard David Price | Improvements relating to agricultural spray systems |
| WO2002018059A1 (en) * | 2000-08-28 | 2002-03-07 | Crane, Valma, Ann | Fluid delivery system |
| EP1240826A2 (en) * | 2001-03-15 | 2002-09-18 | Wissler, Erhard | Spraying device |
| EP1428433A1 (en) * | 2002-12-13 | 2004-06-16 | John Deere Fabriek Horst B.V. | Spraying system |
| GB2485460B (en) * | 2010-11-09 | 2015-01-28 | Weeding Technologies Ltd | Weed control |
| FR3009925A1 (en) * | 2013-09-05 | 2015-03-06 | Nord Pulve | LIQUID SUPPLY CIRCUIT FOR SPRAY RAMP, CORRESPONDING DEVICE AND METHOD |
| CN104888965A (en) * | 2015-06-25 | 2015-09-09 | 厦门理工学院 | Online unblocking device for wet electrostatic precipitator nozzle |
| CN112512307A (en) * | 2018-07-25 | 2021-03-16 | 应用生命科学和系统有限责任公司 | Circulation system and method |
| EP3878277A1 (en) * | 2020-03-11 | 2021-09-15 | Exel Industries | Spraying system for agricultural machine and method for spraying by means of such a system |
| AU2020260382B2 (en) * | 2010-05-28 | 2022-12-08 | Metalform (Dannevirke) Limited | Spraying apparatus and methods and components relating to spraying apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB680749A (en) * | 1951-01-11 | 1952-10-08 | Charles Ernest St John Evers | Improvements in agricultural and like spraying equipment |
| GB774171A (en) * | 1952-11-19 | 1957-05-08 | Massey Harris Ferguson Ltd | Improvements in or relating to spraying apparatus |
| US3863841A (en) * | 1972-05-08 | 1975-02-04 | Berthoud Sa | Liquid Spraying Device |
| BE821593A (en) * | 1974-10-29 | 1975-02-17 | Agricultural spreader for water powder mixture - two tanks feed to distributor valve and spraying nozzles | |
| FR2516348A1 (en) * | 1981-11-19 | 1983-05-20 | Puissant Philippe | Agricultural sprayer with cleansing circuit - directs fluid through nozzle filter in opposite direction to normal flow |
-
1983
- 1983-11-25 FR FR8319076A patent/FR2555469B1/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB680749A (en) * | 1951-01-11 | 1952-10-08 | Charles Ernest St John Evers | Improvements in agricultural and like spraying equipment |
| GB774171A (en) * | 1952-11-19 | 1957-05-08 | Massey Harris Ferguson Ltd | Improvements in or relating to spraying apparatus |
| US3863841A (en) * | 1972-05-08 | 1975-02-04 | Berthoud Sa | Liquid Spraying Device |
| BE821593A (en) * | 1974-10-29 | 1975-02-17 | Agricultural spreader for water powder mixture - two tanks feed to distributor valve and spraying nozzles | |
| FR2516348A1 (en) * | 1981-11-19 | 1983-05-20 | Puissant Philippe | Agricultural sprayer with cleansing circuit - directs fluid through nozzle filter in opposite direction to normal flow |
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| EP0283113A1 (en) * | 1987-02-17 | 1988-09-21 | Seagate Technology International | Apparatus for dispensing slurry to a workpiece |
| EP0384687A2 (en) * | 1989-02-24 | 1990-08-29 | Ormat Turbines (1965) Ltd. | Methods of and apparatus for evaporating and cooling liquid |
| EP0384687A3 (en) * | 1989-02-24 | 1990-12-27 | Ormat Turbines (1965) Ltd. | Method of and apparatus for evaporating and cooling liquid |
| US5527494A (en) * | 1989-02-24 | 1996-06-18 | Orniat Turbines (1965) Ltd. | Apparatus for liquid-gas contact |
| EP0426226A2 (en) * | 1989-11-02 | 1991-05-08 | Imovilli Pompe - S.P.A. | Distribution apparatus for spray devices |
| EP0426226A3 (en) * | 1989-11-02 | 1992-01-22 | Imovilli Pompe - S.P.A. | Distribution apparatus for spray devices |
| FR2678181A1 (en) * | 1991-06-28 | 1992-12-31 | Pommier Guy | Spray boom |
| WO1996031118A1 (en) * | 1995-04-01 | 1996-10-10 | Brian George Knight | Spray apparatus |
| US5934561A (en) * | 1996-02-27 | 1999-08-10 | Knight; Brian George | Spray apparatus having an agitation line |
| WO2001095714A1 (en) * | 2000-06-16 | 2001-12-20 | Richard David Price | Improvements relating to agricultural spray systems |
| WO2002018059A1 (en) * | 2000-08-28 | 2002-03-07 | Crane, Valma, Ann | Fluid delivery system |
| EP1240826A3 (en) * | 2001-03-15 | 2003-11-05 | Wissler, Erhard | Spraying device |
| EP1240826A2 (en) * | 2001-03-15 | 2002-09-18 | Wissler, Erhard | Spraying device |
| EP1428433A1 (en) * | 2002-12-13 | 2004-06-16 | John Deere Fabriek Horst B.V. | Spraying system |
| US7124961B2 (en) | 2002-12-13 | 2006-10-24 | John Deere Farbriek Horst B.V. | Sprayer system |
| AU2020260382B2 (en) * | 2010-05-28 | 2022-12-08 | Metalform (Dannevirke) Limited | Spraying apparatus and methods and components relating to spraying apparatus |
| US9504242B2 (en) | 2010-11-09 | 2016-11-29 | Weeding Technologies Limited | Device for weed control |
| GB2485460B (en) * | 2010-11-09 | 2015-01-28 | Weeding Technologies Ltd | Weed control |
| FR3009925A1 (en) * | 2013-09-05 | 2015-03-06 | Nord Pulve | LIQUID SUPPLY CIRCUIT FOR SPRAY RAMP, CORRESPONDING DEVICE AND METHOD |
| CN104888965A (en) * | 2015-06-25 | 2015-09-09 | 厦门理工学院 | Online unblocking device for wet electrostatic precipitator nozzle |
| CN104888965B (en) * | 2015-06-25 | 2017-02-22 | 厦门理工学院 | Online unblocking device for wet electrostatic precipitator nozzle |
| CN112512307A (en) * | 2018-07-25 | 2021-03-16 | 应用生命科学和系统有限责任公司 | Circulation system and method |
| EP3878277A1 (en) * | 2020-03-11 | 2021-09-15 | Exel Industries | Spraying system for agricultural machine and method for spraying by means of such a system |
| FR3108043A1 (en) * | 2020-03-11 | 2021-09-17 | Exel Industries | SPRAYING SYSTEM FOR AGRICULTURAL EQUIPMENT AND SPRAYING PROCESS BY MEANS OF SUCH A SYSTEM |
| RU2764805C1 (en) * | 2020-03-11 | 2022-01-21 | Эксель Эндюстри | Spray system for an agricultural vehicle and a spraying method using such a system |
| US11812686B2 (en) | 2020-03-11 | 2023-11-14 | Exel Industries | Spraying system for agricultural vehicle and spraying method using such a system |
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| Publication number | Publication date |
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| FR2555469B1 (en) | 1987-01-16 |
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