EP1045814A1 - Limit control device for filling a liquid storage tank - Google Patents

Limit control device for filling a liquid storage tank

Info

Publication number
EP1045814A1
EP1045814A1 EP98955722A EP98955722A EP1045814A1 EP 1045814 A1 EP1045814 A1 EP 1045814A1 EP 98955722 A EP98955722 A EP 98955722A EP 98955722 A EP98955722 A EP 98955722A EP 1045814 A1 EP1045814 A1 EP 1045814A1
Authority
EP
European Patent Office
Prior art keywords
valve
float
upper body
tube
limiter 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.)
Granted
Application number
EP98955722A
Other languages
German (de)
French (fr)
Other versions
EP1045814B1 (en
Inventor
Roland Lagache
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lafon Production SA
Original Assignee
Lafon Production SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lafon Production SA filed Critical Lafon Production SA
Publication of EP1045814A1 publication Critical patent/EP1045814A1/en
Application granted granted Critical
Publication of EP1045814B1 publication Critical patent/EP1045814B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/36—Arrangements of flow- or pressure-control valves
    • B67D7/362—Arrangements of flow- or pressure-control valves combined with over-fill preventing means
    • B67D7/365—Arrangements of flow- or pressure-control valves combined with over-fill preventing means using floats
    • B67D7/367—Arrangements of flow- or pressure-control valves combined with over-fill preventing means using floats the float acting pneumatically on a shut-off valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7358—By float controlled valve
    • Y10T137/7423—Rectilinearly traveling float
    • Y10T137/7426—Float co-axial with valve or port

Definitions

  • the present invention relates to a filling limiter for a liquid storage tank.
  • the simplest limiters in their structure include a body, a valve mounted in said body and movable between an open position corresponding to the filling of the tank and a closed position corresponding to the switch for filling said tank; a float, connected to said valve, follows the rise of the liquid in the tank so as to close the valve when a predetermined level of liquid is reached in the tank.
  • the limiters include a tube body provided with an internal partition to delimit two adjacent chambers arranged side by side, one of the chambers serving as a passage for the liquid intended to fill the tank and the other for receiving a float which is connected to a valve capable of being moved from an open position corresponding to a low level of the liquid in the tank, located below the float, to a closed position corresponding to a high level of liquid in the tank, but always located below the shutter valve.
  • the reopening of the valve in this prior art, is always carried out manually. In addition, and this is a serious drawback, there is no possibility of reopening the valve when the filling agent does not stop filling when the valve is in the closed position.
  • limiters have recently been proposed. Such limiters are for example described in the patent 89 16 604, the European patent 0 415 991, the patent 0 312 320 and the patent US-4 667 711.
  • Each of the limiters described in these patents or patent applications comprises a float which is connected to the valve so that, when the liquid rises in the tank, it is moved away from the body of the limiter.
  • the float When the limiter is introduced into the inlet opening of the tank, the float is housed at least partially in the body so as to reduce the size of the limiter.
  • a limiter in which the float is mounted in a chamber formed parallel to the fluid passage conduit and delimited inside the limiter body by a partition, said float being connected by a linkage to the valve, so that the float is moved mechanically when the liquid rises in the storage tank.
  • the connecting rod between the float and the valve pushes the latter towards its closed position.
  • the devices briefly described above do not allow the liquid introduced into the tank to be channeled and prevent said liquid from raining in said tank, in order to eliminate the formation of excessive foam in the storage tank. .
  • these devices are not always suitable for reducing and even eliminating the risk of explosion which is present when the communication between the outside and the gaseous sky in which the air and the gas are confined. This risk of explosion can occur during an untimely rise of the float.
  • the object of the present invention is to remedy the aforementioned drawbacks and to propose a limiter which makes it possible to channel the liquid during the crossing of the dip tube in order to considerably reduce the fall of the liquid in rain on the bottom of the tank and thus reduce the formation of foam in said tank.
  • the subject of the present invention is a limiter, of the type comprising a filling limiter for a liquid storage tank, said limiter being intended to be introduced at least partially into said storage tank and comprising a hollow upper body, a dip tube integral with said upper body, a valve mounted in said hollow upper body and capable of being moved between an open position and a closed position, a valve seat formed in said hollow upper body and on which said valve rests in the closed position, a float movable vertically in an enclosure formed at least partially inside the dip tube, characterized in that said float is secured to a movable element forming a piston, said movable element being moved by the thrust of the liquid exerted on one of its ends.
  • the movable assembly comprises the float and a piston body integral with said float and in which an annular chamber is formed around a through passage, said movable assembly being disposed in an internal tube which is housed in the dip tube and which is integral with the upper body.
  • a central bore is formed in the float and substantially coaxial with said through passage of the piston body, a tube being disposed in said central bore of the float.
  • the float comprises at least one through passage, one end of which opens into a front chamber formed between an intermediate part secured to the upper body and said float and the other end of which opens into the piston body.
  • the valve is of cylindro-conical shape and it is provided at the top of the cone with a passage for placing the two front and rear faces of said valve in communication.
  • the intermediate piece comprises at the head on the one hand, a stop on which the float tube bears, and on the other hand, two orifices through which a downstream chamber formed at the rear of the piston is capable of being connected to the interior of said tube, said tube being movable in a central passage formed in the intermediate piece.
  • the intermediate piece comprises at least one channel through which the front chamber can be connected to a lateral channel formed on one side of said upper body, said lateral channel being connected, through a valve on the upstream side of the valve.
  • the internal tube is closed at its lower end by a grid.
  • the internal tube comprises at its upper part an air discharge orifice communicating with an orifice for venting formed in the upper body.
  • the piston body is provided at its lower end with a valve.
  • An advantage of the present invention lies in the fact that the crew is isolated from the action of the liquid during filling of the storage tank.
  • the limiter according to the invention comprises a hollow upper body 1 which is extended by a dip tube 2, fixed on said upper body 1.
  • a small valve 4 which is biased by a spring 5 towards the open position.
  • a lateral channel 6 communicates between the space in which the small valve 4 and the spring 5 are mounted, and with the front chamber 8.
  • An intermediate piece 9 is mounted, in a sealed and fixed manner in the upper body 1, said intermediate piece comprising a central passage 10 and a conduit l ia communicating with small channels 11 allowing the connection between the channel 6 and the front chamber 8.
  • a stop 14 is mounted above said orifices 13.
  • a cylindrical-conical valve 16 is mounted in the upper body 1 and delimits, in the latter, an upstream chamber 15a situated on the side of the front face 16 'and into which the filling liquid arrives from the tank and a downstream chamber 15 situated on the side of the rear face 16 ".
  • the conical part 16a of the valve 16 is arranged in the upstream chamber 15a when it is supported on a valve seat 17 formed on the internal wall 1a of the upper body 1.
  • the cylindrical part 16b is supported on the lateral part 3 of the upper body
  • a passage 18 forming a conduit is formed in the conical part of the valve 16, said passage allowing communication between the upstream chambers 15a and downstream 15.
  • a spring 19 is mounted at one end of the passage 18 and constitutes a sort of filter for the liquid in order to prevent small solid particles present in the liquid from entering the downstream chamber 15.
  • a fixed internal tube 21 is mounted in an enclosure 35 of the dip tube 2 and it is secured, by the upper part, to the upper body
  • An orifice 22 provided at the upper part of the internal tube 21 puts the front chamber 8 in communication with the venting port 7.
  • the internal tube 21 is closed at its lower end by a grid 23 which is a filter or screen which prevents pressurization of the interior of the internal tube 21.
  • a movable element 24, forming a piston is mounted in the internal tube 21, and it comprises a piston body 25, a float 26 secured to the body of piston 25 and a tube 27 disposed in a central bore 28 formed in the float 26.
  • the body of the piston 25 comprises a through passage 29 which is substantially coaxial with the tube 27 and an annular chamber 30 formed around the through passage 29.
  • the float 26 comprises at least and preferably two through passages 31 which allow a connection between the front chamber 8 and the annular chamber 30 through a perforated plate 32 on which bears a sealed tightening sleeve 33 which allows to hold the tube 27 integral with the piston body 25, each of the through passages 31 opening at one end into the front chamber 8 and through the other end into the piston body 25.
  • a valve 34 is provided in the lower part of the annular chamber 30.
  • the pressure of the liquid which can vary between 50 mbar and 8 bar opens the valve 16 which is detached from its seat 17, against the calibrated spring 20.
  • the valve 16 opens, the liquid mainly flows through the lateral passage 35 'delimited by the valve 16 and the upper body 1, in the dip tube 2 to reach the bottom of the tank to be filled with liquid.
  • the pressure is zero in the internal tube 21.
  • a small portion of liquid also flows simultaneously through the grid 19, the conduit 18 to fill the chamber 15. Liquid passes from the chamber 15 into the tube 27 by means of the orifices 13, then in the through passage 29, then in the tank through the lower screen 23. A sufficient clearance is provided between the tube 21 and the moving element 24.
  • the valve 34 closes the drain orifice of the annular chamber 30.
  • the movable assembly 24 pushed by the liquid into the internal tube 21, reaches a high position in which the upper end of the tube 27 is supported on the elastomer stop 14.
  • the leakage orifices 13 are closed by the tube 27 and the communication between the chamber 15 and the tube 27 is interrupted.
  • the pressure then increases in the chamber 15 and the valve 16 goes into the closed position against its seat 17, under the action of the spring 20 and due to the difference in the surfaces 16 ′ and 16 ′′ of the valve 16.
  • the attendant closes the valve or stops the pump and the liquid located on either side of the valve decompresses thanks to a small decompression nozzle 40 mounted in the lower part of the upper body 1 and on the side of the side passage 35 for circulation of the liquid to the storage tank. decompression continues until the liquid pressure is less than 50 mbar. However, and for a pressure of less than 50 mbar, the valve 4 opens and the liquid situated above the closed valve 16, enters the channel 6 and flows into the conduit l ia and into the small channels 11 of the intermediate piece 9, then into the front chamber 8. The liquid admitted into the front chamber 8 flows into the through passages 31 and then fills the annular chamber 30. This filling of the annular chamber 30 has the effect of ballasting the moving assembly 24 going down. The descent of the mobile assembly 24 causes the tube 27 to come off the stop 14 and consequently the opening of the openings 13.
  • valve 16 opens again, which makes it possible to drain the filling pipe.
  • the valve 34 closes the drain orifice of the annular chamber 30.
  • the flexible filling pipe is stripped, that is to say that the liquid contained in said flexible filling pipe is allowed to flow into the filling limiter and then into the storage tank or tank.
  • the filling agent opens the tank truck valve again, the liquid in the tank reaches a level N 2 higher than the level N *,.
  • the rise of the liquid in the tank and in the internal tube 21 causes the moving element 24 to move upward and the valve 16 to close.
  • the air which is contained in the front chamber 8 is evacuated to the atmosphere through the orifices 22 and 7.
  • the small valve 34 hitherto pushed by the liquid against its seat, opens to allow the liquid contained in the annular chamber 30 to flow into the tank.

Abstract

The invention concerns a limit control device for filling a liquid storage tank comprising a hollow upper body (1), a plunger tube (2) integral with said upper body (1), a valve (16) mounted in said hollow upper body (1) and capable of moving between an opening position and a closing position, a valve seat (17) arranged in said hollow upper body (1) and whereon said valve (16) is urged to rest in closing position, a floater (26) vertically mobile in a chamber (35) arranged at least partially inside the plunger tube (2). The invention is characterised in that said floater (26) is integral with a moving element (24) forming a piston, said moving element being displaced by thrust of the liquid acting on one of its ends.

Description

Limiteur de remplissage pour cuve de stockage d'un liquide Overfill prevention device for liquid storage tank
La présente invention concerne un limiteur de remplissage pour cuve de stockage d'un liquide.The present invention relates to a filling limiter for a liquid storage tank.
Il est connu de munir une cuve de stockage enterrée ou aérienne destinée à recevoir un liquide, d'un limiteur de remplissage dont la fonction est d'interrompre le remplissage de la cuve lorsque le liquide, dans ladite cuve, atteint un niveau prédéterminé, de manière à éviter un débordement qui serait préjudiciable à l'environnement de la cuve. Ceci est surtout recherché lorsque la cuve à remplir est située dans une station service débitant des hydrocarbures de divers types.It is known to provide an underground or overhead storage tank intended to receive a liquid, with a filling limiter whose function is to interrupt the filling of the tank when the liquid, in said tank, reaches a predetermined level, so as to avoid an overflow which would be detrimental to the environment of the tank. This is especially sought after when the tank to be filled is located in a service station supplying hydrocarbons of various types.
Les limiteurs les plus simples dans leur structure comprennent un corps, un clapet monté dans ledit corps et mobile entre une position d'ouverture correspondant au remplissage de la cuve et une position de fermeture correspondant à l'interrupteur du remplissage de ladite cuve ; un flotteur, relié audit clapet, suit la montée du liquide dans la cuve de manière à fermer le clapet lorsqu'un niveau prédéterminé de liquide est atteint dans la cuve.The simplest limiters in their structure include a body, a valve mounted in said body and movable between an open position corresponding to the filling of the tank and a closed position corresponding to the switch for filling said tank; a float, connected to said valve, follows the rise of the liquid in the tank so as to close the valve when a predetermined level of liquid is reached in the tank.
De nombreux perfectionnements ont été apportés aux limiteurs suivant que les cuves de stockage sont munies de trous d'homme ou d'orifice d'entrée pour le positionnement des limiteurs à l'intérieur de la cuve de stockage. Dans les brevets américains 1 289 490 et 1 689 066, les limiteurs comprennent un corps de tube muni d'une cloison interne pour délimiter deux chambres adjacentes disposées côte à côte, l'une des chambres servant de passage pour le liquide destiné à remplir la cuve et l'autre pour la réception d'un flotteur qui est relié à un clapet susceptible d'être déplacé d'une position d'ouverture correspondant à un niveau bas du liquide dans la cuve, situé au-dessous du flotteur, à une position de fermeture correspondant à un niveau haut du liquide dans la cuve, mais toujours situé au-dessous du clapet d'obturation. La réouverture du clapet, dans cet art antérieur, est toujours effectuée manuellement. De plus, et c'est un inconvénient grave, il n'y a pas de possibilité de réouverture du clapet lorsque le préposé au remplissage n'interrompt pas le remplissage lorsque le clapet est en position de fermeture.Many improvements have been made to the limiters depending on whether the storage tanks are provided with manholes or inlet orifice for positioning the limiters inside the storage tank. In American patents 1 289 490 and 1 689 066, the limiters include a tube body provided with an internal partition to delimit two adjacent chambers arranged side by side, one of the chambers serving as a passage for the liquid intended to fill the tank and the other for receiving a float which is connected to a valve capable of being moved from an open position corresponding to a low level of the liquid in the tank, located below the float, to a closed position corresponding to a high level of liquid in the tank, but always located below the shutter valve. The reopening of the valve, in this prior art, is always carried out manually. In addition, and this is a serious drawback, there is no possibility of reopening the valve when the filling agent does not stop filling when the valve is in the closed position.
D'autres limiteurs ont été récemment proposés. De tels limiteurs sont par exemple décrits dans le brevet 89 16 604, le brevet européen 0 415 991 , le brevet 0 312 320 et le brevet US-4 667 711.Other limiters have recently been proposed. Such limiters are for example described in the patent 89 16 604, the European patent 0 415 991, the patent 0 312 320 and the patent US-4 667 711.
Chacun des limiteurs décrits dans ces brevets ou demandes de brevet comprend un flotteur qui est relié au clapet de façon que, lors de la montée du liquide dans la cuve, il soit éloigné du corps du limiteur. Lorsque le limiteur est introduit dans l'orifice d'entrée de la cuve, le flotteur est logé au moins partiellement dans le corps de manière à diminuer l'encombrement du limiteur.Each of the limiters described in these patents or patent applications comprises a float which is connected to the valve so that, when the liquid rises in the tank, it is moved away from the body of the limiter. When the limiter is introduced into the inlet opening of the tank, the float is housed at least partially in the body so as to reduce the size of the limiter.
Toutefois, de tels limiteurs, du fait du débattement du flotteur à l'extérieur du corps, ne peuvent assurer un remplissage maximum de la cuve. En effet, il est nécessaire de maintenir un espace minimum entre la paroi supérieure de la cuve et la position haute maximale du flotteur.However, such limiters, due to the movement of the float outside the body, cannot ensure maximum filling of the tank. Indeed, it is necessary to maintain a minimum space between the upper wall of the tank and the maximum high position of the float.
Dans le brevet FR-90 10 353, il est décrit un limiteur dans lequel le flotteur est monté dans une chambre ménagée parallèlement au conduit de passage du fluide et délimitée à l'intérieur du corps de limiteur par une cloison de séparation, ledit flotteur étant relié par une tringlerie au clapet, de sorte que le flotteur est déplacé mécaniquement lors de la montée de liquide dans la cuve de stockage. Lorsque le flotteur atteint un niveau de liquide prédéterminé dans la cuve, la tige de liaison entre le flotteur et le clapet pousse ce dernier vers sa position de fermeture.In patent FR-90 10 353, a limiter is described in which the float is mounted in a chamber formed parallel to the fluid passage conduit and delimited inside the limiter body by a partition, said float being connected by a linkage to the valve, so that the float is moved mechanically when the liquid rises in the storage tank. When the float reaches a predetermined liquid level in the tank, the connecting rod between the float and the valve pushes the latter towards its closed position.
Les dispositifs décrits succinctement ci-dessus ne permettent pas de canaliser le liquide introduit dans la cuve et d'empêcher que ledit liquide ne tombe en pluie dans ladite cuve, afin d'éliminer la formation d'une mousse trop importante dans la cuve de stockage. De plus, ces dispositifs ne sont pas toujours adaptés pour réduire et même éliminer le risque d'explosion qui est présent lorsque la communication entre l'extérieur et le ciel gazeux dans lequel l'air et le gaz sont confinés. Ce risque d'explosion peut survenir lors d'une remontée intempestive du flotteur.The devices briefly described above do not allow the liquid introduced into the tank to be channeled and prevent said liquid from raining in said tank, in order to eliminate the formation of excessive foam in the storage tank. . In addition, these devices are not always suitable for reducing and even eliminating the risk of explosion which is present when the communication between the outside and the gaseous sky in which the air and the gas are confined. This risk of explosion can occur during an untimely rise of the float.
La présente invention a pour but de remédier aux inconvénients précités et de proposer un limiteur qui permet de canaliser le liquide pendant la traversée du tube plongeur afin de réduire considérablement la retombée du liquide en pluie sur le fond de la cuve et réduire ainsi la formation de mousse dans ladite cuve.The object of the present invention is to remedy the aforementioned drawbacks and to propose a limiter which makes it possible to channel the liquid during the crossing of the dip tube in order to considerably reduce the fall of the liquid in rain on the bottom of the tank and thus reduce the formation of foam in said tank.
La présente invention a pour objet un limiteur, du type comprenant un limiteur de remplissage pour cuve de stockage d'un liquide, ledit limiteur étant destiné à être introduit au moins partiellement dans ladite cuve de stockage et comprenant un corps supérieur creux, un tube plongeur solidaire dudit corps supérieur, un clapet monté dans ledit corps supérieur creux et susceptible d'être déplacé entre une position d'ouverture et une position de fermeture, un siège de clapet ménagé dans ledit corps supérieur creux et sur lequel vient en appui ledit clapet dans la position de fermeture, un flotteur mobile verticalement dans une enceinte ménagée au moins partiellement à l'intérieur du tube plongeur, caractérisé en ce que ledit flotteur est solidaire d'un équipage mobile formant piston, ledit équipage mobile étant déplacé par la poussée du liquide s 'exerçant sur l'une de ses extrémités.The subject of the present invention is a limiter, of the type comprising a filling limiter for a liquid storage tank, said limiter being intended to be introduced at least partially into said storage tank and comprising a hollow upper body, a dip tube integral with said upper body, a valve mounted in said hollow upper body and capable of being moved between an open position and a closed position, a valve seat formed in said hollow upper body and on which said valve rests in the closed position, a float movable vertically in an enclosure formed at least partially inside the dip tube, characterized in that said float is secured to a movable element forming a piston, said movable element being moved by the thrust of the liquid exerted on one of its ends.
Selon une autre caractéristique de la présente invention, l'équipage mobile comprend le flotteur et un corps de piston solidaire dudit flotteur et dans lequel est ménagée une chambre annulaire autour d'un passage traversant, ledit équipage mobile étant disposé dans un tube interne qui est logé dans le tube plongeur et qui est solidaire du corps supérieur.According to another characteristic of the present invention, the movable assembly comprises the float and a piston body integral with said float and in which an annular chamber is formed around a through passage, said movable assembly being disposed in an internal tube which is housed in the dip tube and which is integral with the upper body.
Selon une autre caractéristique de la présente invention, un alésage central est ménagé dans le flotteur et sensiblement coaxial audit passage traversant du corps de piston, un tube étant disposé dans ledit alésage central du flotteur.According to another characteristic of the present invention, a central bore is formed in the float and substantially coaxial with said through passage of the piston body, a tube being disposed in said central bore of the float.
Selon une autre caractéristique de la présente invention, le flotteur comprend au moins un passage traversant dont une extrémité débouche dans une chambre avant ménagée entre une pièce intermédiaire solidaire du corps supérieur et ledit flotteur et dont l'autre extrémité débouche dans le corps de piston.According to another characteristic of the present invention, the float comprises at least one through passage, one end of which opens into a front chamber formed between an intermediate part secured to the upper body and said float and the other end of which opens into the piston body.
Selon une autre caractéristique de la présente invention, le clapet est de forme cylindro-conique et il est muni au sommet du cône d'un passage pour une mise en communication des deux faces avant et arrière dudit clapet. Selon une autre caractéristique de la présente invention, la pièce intermédiaire comprend en tête d'une part, une butée sur laquelle vient en appui le tube du flotteur, et d'autre part, deux orifices à travers lesquels une chambre aval ménagée à l'arrière du piston est susceptible d'être reliée à l'intérieur dudit tube, ledit tube étant mobile dans un passage central ménagé dans la pièce intermédiaire.According to another characteristic of the present invention, the valve is of cylindro-conical shape and it is provided at the top of the cone with a passage for placing the two front and rear faces of said valve in communication. According to another characteristic of the present invention, the intermediate piece comprises at the head on the one hand, a stop on which the float tube bears, and on the other hand, two orifices through which a downstream chamber formed at the rear of the piston is capable of being connected to the interior of said tube, said tube being movable in a central passage formed in the intermediate piece.
Selon une autre caractéristique de la présente invention, la pièce intermédiaire comprend au moins un canal à travers lequel la chambre avant est susceptible d'être reliée à un canal latéral ménagé sur un côté dudit corps supérieur, ledit canal latéral étant relié, à travers une soupape au côté amont du clapet.According to another characteristic of the present invention, the intermediate piece comprises at least one channel through which the front chamber can be connected to a lateral channel formed on one side of said upper body, said lateral channel being connected, through a valve on the upstream side of the valve.
Selon une autre caractéristique de la présente invention, le tube interne est fermé à son extrémité inférieure par une grille.According to another characteristic of the present invention, the internal tube is closed at its lower end by a grid.
Selon une autre caractéristique de la présente invention, le tube interne comprend à sa partie supérieure un orifice d'évacuation d'air communiquant avec un orifice de mise à l'atmosphère ménagé dans le corps supérieur.According to another characteristic of the present invention, the internal tube comprises at its upper part an air discharge orifice communicating with an orifice for venting formed in the upper body.
Selon une autre caractéristique de la présente invention, le corps de piston est muni à son extrémité inférieure d'un clapet.According to another characteristic of the present invention, the piston body is provided at its lower end with a valve.
Un avantage de la présente invention réside dans le fait que l'équipage est isolé de l'action du liquide lors du remplissage de la cuve de stockage.An advantage of the present invention lies in the fact that the crew is isolated from the action of the liquid during filling of the storage tank.
D'autres avantages et caractéristiques ressortiront mieux à la lecture de la description d'un mode de réalisation préféré de l'invention, ainsi que du dessin annexé sur lequel la figure unique représente une vue en coupe du limiteur, le clapet étant dans la position de fermeture.Other advantages and characteristics will emerge more clearly on reading the description of a preferred embodiment of the invention, as well as the appended drawing in which the single figure represents a sectional view of the limiter, the valve being in the position closing.
Le limiteur selon l'invention comprend un corps supérieur creux 1 qui est prolongé par un tube plongeur 2, fixé sur ledit corps supérieur 1. Dans un côté latéral 3 dudit corps supérieur 1 est montée une petite soupape 4 qui est sollicitée par un ressort 5 vers la position d'ouverture. Un canal latéral 6 réalise la communication entre l'espace dans lequel sont montés la petite soupape 4 et le ressort 5, et avec la chambre avant 8.The limiter according to the invention comprises a hollow upper body 1 which is extended by a dip tube 2, fixed on said upper body 1. In a lateral side 3 of said upper body 1 is mounted a small valve 4 which is biased by a spring 5 towards the open position. A lateral channel 6 communicates between the space in which the small valve 4 and the spring 5 are mounted, and with the front chamber 8.
Une pièce intermédiaire 9 est montée, de manière étanche et fixe dans le corps supérieur 1, ladite pièce intermédiaire comprenant un passage central 10 et un conduit l ia communiquant avec des petits canaux 11 permettant la liaison entre le canal 6 et la chambre avant 8. Dans la tête 12 de la pièce intermédiaire 9 sont ménagés deux petits orifices 13 et au-dessus desdits orifices 13 est montée une butée 14.An intermediate piece 9 is mounted, in a sealed and fixed manner in the upper body 1, said intermediate piece comprising a central passage 10 and a conduit l ia communicating with small channels 11 allowing the connection between the channel 6 and the front chamber 8. In the head 12 of the intermediate piece 9 are formed two small orifices 13 and a stop 14 is mounted above said orifices 13.
Un clapet cylindro-conique 16 est monté dans le corps supérieur 1 et délimite, dans ce dernier, une chambre amont 15a située du côté de la face avant 16' et dans laquelle arrive le liquide de remplissage de la cuve et une chambre aval 15 située du côté de la face arrière 16" . La partie conique 16a du clapet 16 est disposée dans la chambre amont 15a lorsqu'elle est en appui sur un siège de clapet 17 ménagé sur la paroi interne la du corps supérieur 1. La partie cylindrique 16b est en appui sur la partie latérale 3 du corps supérieur. Un passage 18 formant conduit est ménagé dans la partie conique du clapet 16, ledit passage permettant la communication entre les chambres amont 15a et aval 15. Une petite grilleA cylindrical-conical valve 16 is mounted in the upper body 1 and delimits, in the latter, an upstream chamber 15a situated on the side of the front face 16 'and into which the filling liquid arrives from the tank and a downstream chamber 15 situated on the side of the rear face 16 ". The conical part 16a of the valve 16 is arranged in the upstream chamber 15a when it is supported on a valve seat 17 formed on the internal wall 1a of the upper body 1. The cylindrical part 16b is supported on the lateral part 3 of the upper body A passage 18 forming a conduit is formed in the conical part of the valve 16, said passage allowing communication between the upstream chambers 15a and downstream 15. A small grid
19 est montée à une extrémité du passage 18 et constitue une sorte de filtre pour le liquide afin d'empêcher de petites particules solides présentes dans le liquide de pénétrer dans la chambre aval 15. Un ressort19 is mounted at one end of the passage 18 and constitutes a sort of filter for the liquid in order to prevent small solid particles present in the liquid from entering the downstream chamber 15. A spring
20 est logé dans la chambre aval 15 et il prend appui sur la base de la partie conique du clapet 16 et la pièce intermédiaire 9.20 is housed in the downstream chamber 15 and it is supported on the base of the conical part of the valve 16 and the intermediate part 9.
Un tube interne fixe 21 est monté dans une enceinte 35 du tube plongeur 2 et il est solidaire, par la partie supérieure, du corps supérieurA fixed internal tube 21 is mounted in an enclosure 35 of the dip tube 2 and it is secured, by the upper part, to the upper body
1. Un orifice 22 prévu à la partie supérieure du tube interne 21 met en communication la chambre avant 8 avec l'orifice de mise à l'atmosphère 7. Le tube interne 21 est fermé à son extrémité inférieure par une grille 23 qui est un filtre ou tamis qui empêche la mise en pression de l'intérieur du tube interne 21. Un équipage mobile 24, formant piston, est monté dans le tube interne 21, et il comprend un corps de piston 25, un flotteur 26 solidaire du corps de piston 25 et un tube 27 disposé dans un alésage central 28 ménagé dans le flotteur 26. Le corps du piston 25 comprend un passage traversant 29 qui est sensiblement coaxial au tube 27 et une chambre annulaire 30 ménagée autour du passage traversant 29. Le flotteur 26 comporte au moins et, de préférence, deux passages traversants 31 qui permettent une liaison entre la chambre avant 8 et la chambre annulaire 30 à travers une plaque percée 32 sur laquelle prend appui un manchon de serrage étanche 33 qui permet de maintenir le tube 27 solidaire du corps de piston 25, chacun des passages traversants 31 débouchant par une extrémité dans la chambre avant 8 et par l'autre extrémité dans le corps de piston 25. Un clapet 34 est prévu en partie inférieure de la chambre annulaire 30.1. An orifice 22 provided at the upper part of the internal tube 21 puts the front chamber 8 in communication with the venting port 7. The internal tube 21 is closed at its lower end by a grid 23 which is a filter or screen which prevents pressurization of the interior of the internal tube 21. A movable element 24, forming a piston, is mounted in the internal tube 21, and it comprises a piston body 25, a float 26 secured to the body of piston 25 and a tube 27 disposed in a central bore 28 formed in the float 26. The body of the piston 25 comprises a through passage 29 which is substantially coaxial with the tube 27 and an annular chamber 30 formed around the through passage 29. The float 26 comprises at least and preferably two through passages 31 which allow a connection between the front chamber 8 and the annular chamber 30 through a perforated plate 32 on which bears a sealed tightening sleeve 33 which allows to hold the tube 27 integral with the piston body 25, each of the through passages 31 opening at one end into the front chamber 8 and through the other end into the piston body 25. A valve 34 is provided in the lower part of the annular chamber 30.
Le fonctionnement du limiteur de remplissage selon la présente invention est le suivant.The operation of the filling limiter according to the present invention is as follows.
Lorsque le préposé au remplissage de la cuve a raccordé au limiteur le tuyau de remplissage du camion citerne et après qu'il ait ouvert la Vanne montée sur ledit camion citerne et/ou la pompe si le remplissage est effectué à l'aide d'une pompe, la pression du liquide qui peut varier entre 50 mbar et 8 bar ouvre le clapet 16 qui est décollé de son siège 17, à rencontre du ressort taré 20. Dès l'ouverture du clapet 16, le liquide s'écoule principalement à travers le passage latéral 35' délimité par le clapet 16 et le corps supérieur 1, dans le tube plongeur 2 pour atteindre le fond du réservoir à remplir de liquide. Pendant la phase de remplissage, la pression est nulle dans le tube interne 21. Une petite partie de liquide s'écoule également et simultanément à travers la grille 19, le conduit 18 pour remplir la chambre 15. Du liquide passe de la chambre 15 dans le tube 27 grâce aux orifices 13, ensuite dans le passage traversant 29, puis dans le réservoir à travers le tamis inférieur 23. Un jeu suffisant est prévu entre le tube 21 et l'équipage mobile 24.When the tank filling operator has connected the tank truck filling pipe to the limiter and after he has opened the valve mounted on said tank truck and / or the pump if filling is carried out using a pump, the pressure of the liquid which can vary between 50 mbar and 8 bar opens the valve 16 which is detached from its seat 17, against the calibrated spring 20. As soon as the valve 16 opens, the liquid mainly flows through the lateral passage 35 'delimited by the valve 16 and the upper body 1, in the dip tube 2 to reach the bottom of the tank to be filled with liquid. During the filling phase, the pressure is zero in the internal tube 21. A small portion of liquid also flows simultaneously through the grid 19, the conduit 18 to fill the chamber 15. Liquid passes from the chamber 15 into the tube 27 by means of the orifices 13, then in the through passage 29, then in the tank through the lower screen 23. A sufficient clearance is provided between the tube 21 and the moving element 24.
Lorsque le liquide monte dans le tube interne 21 et atteint l'extrémité inférieure de l'équipage mobile 24, le clapet 34 obture l'orifice de vidange de la chambre annulaire 30. Lorsque le niveau de liquide atteint un premier niveau N-, dans le réservoir, l'équipage mobile 24, poussé par le liquide dans le tube interne 21, atteint une position haute dans laquelle l'extrémité supérieure du tube 27 est en appui sur la butée en élastomère 14. Les orifices de fuite 13 sont obturés par le tube 27 et la communication entre la chambre 15 et le tube 27 est interrompue. La pression augmente alors dans la chambre 15 et le clapet 16 va en position de fermeture contre son siège 17, sous l'action du ressort 20 et en raison de la différence des surfaces 16' et 16" du clapet 16. A ce moment, le préposé ferme la vanne ou arrête la pompe et le liquide situé de part et d'autre du clapet se décomprime grâce à un petit gicleur de décompression 40 monté dans la partie basse du corps supérieur 1 et du côté du passage latéral 35 de circulation du liquide vers la cuve de stockage. Cette décompression se poursuit jusqu'à ce que la pression du liquide soit inférieure à 50 mbar. Toutefois et pour une pression inférieure à 50 mbar, la soupape 4 s'ouvre et le liquide situé au-dessus du clapet 16 fermé, pénètre dans le canal 6 et s'écoule dans le conduit l ia et dans les petits canaux 11 de la pièce intermédiaire 9, puis dans la chambre avant 8. Le liquide admis dans la chambre avant 8 s'écoule dans les passages traversants 31 puis remplit la chambre annulaire 30. Ce remplissage de la chambre annulaire 30 a pour effet de lester l'équipage mobile 24 qui redescend. La descente de l'équipage mobile 24 provoque le décollement du tube 27 de la butée 14 et par suite, l'ouverture des ouvertures 13.When the liquid rises in the internal tube 21 and reaches the lower end of the mobile assembly 24, the valve 34 closes the drain orifice of the annular chamber 30. When the liquid level reaches a first level N- , in the reservoir, the movable assembly 24, pushed by the liquid into the internal tube 21, reaches a high position in which the upper end of the tube 27 is supported on the elastomer stop 14. The leakage orifices 13 are closed by the tube 27 and the communication between the chamber 15 and the tube 27 is interrupted. The pressure then increases in the chamber 15 and the valve 16 goes into the closed position against its seat 17, under the action of the spring 20 and due to the difference in the surfaces 16 ′ and 16 ″ of the valve 16. At this time, the attendant closes the valve or stops the pump and the liquid located on either side of the valve decompresses thanks to a small decompression nozzle 40 mounted in the lower part of the upper body 1 and on the side of the side passage 35 for circulation of the liquid to the storage tank. decompression continues until the liquid pressure is less than 50 mbar. However, and for a pressure of less than 50 mbar, the valve 4 opens and the liquid situated above the closed valve 16, enters the channel 6 and flows into the conduit l ia and into the small channels 11 of the intermediate piece 9, then into the front chamber 8. The liquid admitted into the front chamber 8 flows into the through passages 31 and then fills the annular chamber 30. This filling of the annular chamber 30 has the effect of ballasting the moving assembly 24 going down. The descent of the mobile assembly 24 causes the tube 27 to come off the stop 14 and consequently the opening of the openings 13.
Comme la pression dans la chambre 15 tend vers zéro et comme il y a une différence de sections entre les faces 16' et 16" du clapet 16, le clapet 16 s'ouvre à nouveau, ce qui permet de vidanger le tuyau de remplissage. Lorsque le liquide monte dans le tube interne 21 et atteint l'extrémité inférieure de l'équipage mobile 24, le clapet 34 obture l'orifice de vidange de la chambre annulaire 30.As the pressure in the chamber 15 tends towards zero and as there is a difference in sections between the faces 16 'and 16 "of the valve 16, the valve 16 opens again, which makes it possible to drain the filling pipe. When the liquid rises in the internal tube 21 and reaches the lower end of the movable assembly 24, the valve 34 closes the drain orifice of the annular chamber 30.
Le dépotage du tuyau flexible de remplissage s'effectue, c'est- à-dire que le liquide contenu dans ledit tuyau flexible de remplissage est admis à s'écouler dans le limiteur de remplissage puis dans la cuve ou réservoir de stockage.The flexible filling pipe is stripped, that is to say that the liquid contained in said flexible filling pipe is allowed to flow into the filling limiter and then into the storage tank or tank.
Si le préposé au remplissage ouvre à nouveau la vanne du camion citerne, le liquide dans la cuve atteint un niveau N2 supérieur au niveau N*, . La montée du liquide dans la cuve et dans le tube interne 21 provoque le déplacement de l'équipage mobile 24 vers le haut et la fermeture du clapet 16.If the filling agent opens the tank truck valve again, the liquid in the tank reaches a level N 2 higher than the level N *,. The rise of the liquid in the tank and in the internal tube 21 causes the moving element 24 to move upward and the valve 16 to close.
Pendant le déplacement de l'équipage mobile vers le haut, l'air qui est contenu dans la chambre avant 8 est évacué à l'atmosphère par les orifices 22 et 7.During the movement of the moving element upwards, the air which is contained in the front chamber 8 is evacuated to the atmosphere through the orifices 22 and 7.
Lors de la vidange de la cuve et lorsque le niveau de liquide redescend au-dessous de l'équipage mobile 24, le petit clapet 34, jusqu'alors poussé par le liquide contre son siège, s'ouvre pour permettre au liquide contenu dans la chambre annulaire 30 de s'écouler dans la cuve. During the emptying of the tank and when the liquid level drops below the movable element 24, the small valve 34, hitherto pushed by the liquid against its seat, opens to allow the liquid contained in the annular chamber 30 to flow into the tank.

Claims

REVENDICATIONS
1. Limiteur de remplissage pour cuve de stockage d'un liquide, ledit limiteur étant destiné à être introduit au moins partiellement dans ladite cuve de stockage et comprenant un corps supérieur creux (1), un tube plongeur (2) solidaire dudit corps supérieur (1), un clapet (16) monté dans ledit corps supérieur creux (1) et susceptible d'être déplacé entre une position d'ouverture et une position de fermeture, un siège (17) de clapet ménagé dans ledit corps supérieur creux (1) et sur lequel vient en appui ledit clapet (16) dans la position de fermeture, un flotteur (26) mobile verticalement dans une enceinte (35) ménagée au moins partiellement à l'intérieur du tube plongeur (2), caractérisé en ce que ledit flotteur (26) est solidaire d'un équipage mobile (24) formant piston, ledit équipage mobile étant déplacé par la poussée du liquide s 'exerçant sur l'une de ses extrémités.1. Overfill limiter for a liquid storage tank, said limiter being intended to be introduced at least partially into said storage tank and comprising a hollow upper body (1), a dip tube (2) integral with said upper body ( 1), a valve (16) mounted in said hollow upper body (1) and capable of being moved between an open position and a closed position, a valve seat (17) formed in said hollow upper body (1 ) and on which bears said valve (16) in the closed position, a float (26) movable vertically in an enclosure (35) formed at least partially inside the dip tube (2), characterized in that said float (26) is integral with a movable assembly (24) forming a piston, said movable assembly being displaced by the thrust of the liquid exerted on one of its ends.
2. Limiteur selon la revendication 1, caractérisé en ce que l'équipage mobile comprend le flotteur (26) et un corps de piston (25) solidaire dudit flotteur et dans lequel est ménagée une chambre annulaire (30) autour d'un passage traversant (29), ledit équipage mobile étant disposé dans un tube interne (21) qui est logé dans le tube plongeur (2) et qui est solidaire du corps supérieur (1).2. Limiter according to claim 1, characterized in that the movable assembly comprises the float (26) and a piston body (25) integral with said float and in which is formed an annular chamber (30) around a through passage (29), said movable assembly being disposed in an internal tube (21) which is housed in the dip tube (2) and which is integral with the upper body (1).
3. Limiteur selon la revendication 2, caractérisé en ce qu'un alésage central (28) est ménagé dans le flotteur (26) et sensiblement coaxial audit passage traversant (29) du corps de piston, un tube (27) étant disposé dans ledit alésage central (28) du flotteur (26).3. Limiter according to claim 2, characterized in that a central bore (28) is formed in the float (26) and substantially coaxial with said through passage (29) of the piston body, a tube (27) being disposed in said central bore (28) of the float (26).
4. Limiteur selon l'une des revendications 1 à 3, caractérisé en ce que le flotteur (26) comprend au moins un passage traversant (31) dont une extrémité débouche dans une chambre avant (8) ménagée entre une pièce intermédiaire (9) solidaire du corps supérieur (1) et ledit flotteur (26) et dont l'autre extrémité débouche dans le corps de piston (25).4. Limiter according to one of claims 1 to 3, characterized in that the float (26) comprises at least one through passage (31) one end of which opens into a front chamber (8) formed between an intermediate piece (9) integral with the upper body (1) and said float (26) and the other end of which opens into the piston body (25).
5. Limiteur selon la revendication 1, caractérisé en ce que le clapet (16) est de forme cylindro-conique et il est muni au sommet du cône d'un passage (18) pour une mise en communication des deux faces avant (16') et arrière (16") dudit clapet.5. Limiter according to claim 1, characterized in that the valve (16) is of cylindro-conical shape and it is provided at the top of the cone with a passage (18) for placing the two faces in communication. front (16 ') and rear (16 ") of said valve.
6. Limiteur selon la revendication 4, caractérisé en ce que la pièce intermédiaire (9) comprend en tête d'une part, une butée (14) sur laquelle vient en appui le tube (27) du flotteur (26), et d'autre part, deux orifices (13) à travers lesquels une chambre aval (15) ménagée à l'arrière du clapet est susceptible d'être reliée à l'intérieur dudit tube (27), ledit tube (27) étant mobile dans un passage central (10) ménagé dans la pièce intermédiaire.6. Limiter according to claim 4, characterized in that the intermediate piece (9) comprises at the head on the one hand, a stop (14) on which bears the tube (27) of the float (26), and on the other hand, two orifices (13) through which a downstream chamber (15) formed at the rear of the valve can be connected to the interior of said tube (27), said tube (27) being movable in a passage central (10) formed in the intermediate piece.
7. Limiteur selon la revendication 6, caractérisé en ce que la pièce intermédiaire (9) comprend au moins un conduit (l ia) à travers laquelle la chambre avant (8) est susceptible d'être reliée à un canal latéral (6) ménagé sur un côté (3) dudit corps supérieur (1), ledit canal latéral (6) étant relié, à travers une soupape (4), à la chambre amont (15a) du clapet (16). 7. Limiter according to claim 6, characterized in that the intermediate piece (9) comprises at least one conduit (l ia) through which the front chamber (8) is capable of being connected to a lateral channel (6) formed on one side (3) of said upper body (1), said lateral channel (6) being connected, through a valve (4), to the upstream chamber (15a) of the valve (16).
8. Limiteur selon la revendication 2, caractérisé en ce que le tube interne (21) est fermé à son extrémité inférieure par une grille (23).8. Limiter according to claim 2, characterized in that the internal tube (21) is closed at its lower end by a grid (23).
9. Limiteur selon la revendication 2 ou 8, caractérisé en ce que le tube interne (21) comprend à sa partie supérieure un orifice d'évacuation d'air (22) communiquant avec un orifice de mise à l'atmosphère (7) ménagé dans le corps supérieur (1).9. Limiter according to claim 2 or 8, characterized in that the internal tube (21) comprises at its upper part an air discharge orifice (22) communicating with an orifice for venting (7) formed in the upper body (1).
10. Limiteur selon la revendication 2, caractérisé en ce que le corps de piston (25) est muni à son extrémité inférieure d'un clapet (34). 10. Limiter according to claim 2, characterized in that the piston body (25) is provided at its lower end with a valve (34).
EP19980955722 1997-12-16 1998-11-23 Limit control device for filling a liquid storage tank Expired - Lifetime EP1045814B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9715955 1997-12-16
FR9715955A FR2772354B1 (en) 1997-12-16 1997-12-16 FILL LIMITER FOR LIQUID STORAGE TANK
PCT/FR1998/002500 WO1999031011A1 (en) 1997-12-16 1998-11-23 Limit control device for filling a liquid storage tank

Publications (2)

Publication Number Publication Date
EP1045814A1 true EP1045814A1 (en) 2000-10-25
EP1045814B1 EP1045814B1 (en) 2001-10-24

Family

ID=9514683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980955722 Expired - Lifetime EP1045814B1 (en) 1997-12-16 1998-11-23 Limit control device for filling a liquid storage tank

Country Status (6)

Country Link
US (1) US6318421B1 (en)
EP (1) EP1045814B1 (en)
JP (1) JP2002508289A (en)
ES (1) ES2165707T3 (en)
FR (1) FR2772354B1 (en)
WO (1) WO1999031011A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003248297A1 (en) * 2003-09-23 2005-04-07 Walnab Pty Ltd Tank refuelling system
US7128102B2 (en) * 2004-04-30 2006-10-31 Delaware Capital Formation, Inc. Drop tube segments adapted for use with a liquid reservoir
US7213610B2 (en) * 2004-04-30 2007-05-08 Delaware Capital Formation, Inc. Drop tube segments adapted for use with a liquid reservoir and methods
US7243675B2 (en) * 2004-04-30 2007-07-17 Delaware Capital Formation, Inc. Drop tube segments adapted for use with a liquid reservoir
US7437815B2 (en) * 2004-04-30 2008-10-21 Delaware Capital Formation, Inc. Systems adapted to cooperate with an aperture forming tool and methods
AU2005203293B2 (en) * 2004-07-28 2007-10-04 Trevor Farr Top Mounted Trickle Feed
DE102004044818A1 (en) * 2004-09-16 2006-03-23 Robert Bosch Gmbh Compressor bypass valve for multi-stage charging
FR2882701B1 (en) * 2005-03-04 2008-12-05 Lionel Lecrosnier SAFETY DEVICE FOR FILLING A FILLING ORIFICE OF A RESERVOIR
ITVI20050210A1 (en) * 2005-07-26 2007-01-27 Tomasetto Achille Srl FILLING RESTRICTION DEVICE WITH TANK FLUID
US7584766B2 (en) 2006-03-07 2009-09-08 Clay And Bailey Manufacturing Company Overfill prevention valve for shallow tanks
US8550128B2 (en) 2008-06-16 2013-10-08 Michael J. Mitrovich Fluid flow control valve with upper bleed port and system
US8281823B2 (en) 2008-06-16 2012-10-09 Spillx L.L.C. Refueling apparatus with an automatic stop
US8430117B2 (en) 2010-04-26 2013-04-30 Michael J. Mitrovich Refueling apparatus
US8631818B2 (en) 2011-06-28 2014-01-21 Michael J. Mitrovich Vertical float valve assembly
TW201531434A (en) 2014-01-03 2015-08-16 Franklin Fueling Systems Inc Overfill prevention valve with remote testing
US10703388B2 (en) 2015-12-03 2020-07-07 Spillx Llc Refueling adapter
US10139841B2 (en) * 2016-09-12 2018-11-27 Clay And Bailey Manufacturing Company Overfill prevention valve assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR312320A (en)
US1289490A (en) 1917-12-05 1918-12-31 Elmer E Lundstrom Funnel.
US1689066A (en) 1926-06-11 1928-10-23 Frederick C Baxter Automatic shut-off device for liquid dispensers
CA910157A (en) * 1970-02-20 1972-09-19 W. Swain Leonard Anti-static valve
US3929155A (en) * 1972-09-11 1975-12-30 Owen L Garretson Float shut off valve for liquefied petroleum gas tank fillers
FR2324965A2 (en) * 1975-09-18 1977-04-15 Normand Equip Ind Solvent treatment of senna leaves and fruits - for use as a laxative after removal of resins
FR2476790A1 (en) * 1980-02-21 1981-08-28 Lafon Georges Limiting valve for refilling of storage tank - has loose woven glass fibre adhering superficially to elastomer layer
NL8100326A (en) * 1981-01-23 1982-08-16 Valico Pvba FILLING MECHANISM MOUNTED ON A TANK.
US4667711A (en) 1984-05-10 1987-05-26 Draft Roger A Tank overfill valve
CA1291394C (en) 1987-10-13 1991-10-29 James E. Kesterman Overfill valve construction and method of making the same
FR2631611B1 (en) 1988-05-20 1991-10-04 Lafon Prod Sa AUTOMATIC TANK FILL LIMITER
FR2656062B1 (en) 1989-12-15 1992-06-05 Lafon Prod Sa FILL LIMITER FOR LIQUID STORAGE TANK.
FR2665891B1 (en) 1990-08-14 1994-05-13 Lafon Production FILL LIMITER FOR LIQUID STORAGE TANK.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9931011A1 *

Also Published As

Publication number Publication date
ES2165707T3 (en) 2002-03-16
FR2772354A1 (en) 1999-06-18
EP1045814B1 (en) 2001-10-24
JP2002508289A (en) 2002-03-19
WO1999031011A1 (en) 1999-06-24
US6318421B1 (en) 2001-11-20
FR2772354B1 (en) 2000-02-04

Similar Documents

Publication Publication Date Title
EP1045814B1 (en) Limit control device for filling a liquid storage tank
CH622960A5 (en)
LU88377A1 (en) Bi-directional valve for a valve of a cylinder of compressed or liquefied gas and valve provided with such a valve
EP0433151B1 (en) Overfilling controller for a fluid storage tank
FR2788258A1 (en) FILL LIMITER FOR LIQUID STORAGE TANK
FR2675476A1 (en) Filling limiter for liquid storage tank
FR2652426A1 (en) GAS BOTTLE REGULATOR.
FR2791033A1 (en) Filler for bottles has filling spout with valve and independent plug to control flow
EP0109467B1 (en) Semi-automatic valve for the discharge of a predetermined volume of fluid under pressure, particularly a flush valve
FR2524173A1 (en) Liq. level control for automatic tank filling system - has level sensing float whose movement initiates progressive closure of main supply valve
FR2665891A1 (en) Filling limiter for liquid storage tank
EP0003700A1 (en) Desurging tank with automatic air control
FR2542346A1 (en) TAP FOR WATER HUNTING TANK
EP0516528B1 (en) Safety valve for the ventilation of a fuel tank of a motor vehicle
FR2778397A1 (en) FILLING DEVICE FOR LIQUEFIED PETROLEUM GAS TANK
FR2659099A1 (en) IMPROVEMENTS IN AUTOMATIC AIR INJECTION SYSTEMS USED IN WATER-CLOSETS HYDROPNEUMATIC CISTERN DISCHARGE.
FR2517360A1 (en) COMBINED INSTALLATION OF AN ACTIVATION PUMP AND A SAFETY VALVE PROVIDED BELOW SUCH A PUMP IN A HYDROCARBON PRODUCTION WELL
EP0906889B1 (en) Bottle filling device with liquid level adjustment without loss of liquid
FR2640921A1 (en) Appliance for preventing mixing of fuels when filling a tank
FR2774636A1 (en) Connection of automobile fuel tank to atmosphere to release tank over pressure
FR2547644A1 (en) Compressed air lubrication device
FR2545182A1 (en) DEVICE FOR CONTROLLING THE FILLING OF A CLOSED ENCLOSURE
FR2716476A1 (en) Desurging device for sewage pumping stations
FR2549569A1 (en) Hydraulic timing valve and washing mouth equipped with such a valve
FR2507587A1 (en) Pressure distributor for drink - uses neutral gas inflating base seal controlling gas entry to drink container

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000717

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES FR GB IT NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010112

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011024

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20011024

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011026

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2165707

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20101014

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101117

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20101111

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20111123

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111124