EP1041217A1 - Device for draining rainwater with flow control - Google Patents

Device for draining rainwater with flow control Download PDF

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Publication number
EP1041217A1
EP1041217A1 EP00470004A EP00470004A EP1041217A1 EP 1041217 A1 EP1041217 A1 EP 1041217A1 EP 00470004 A EP00470004 A EP 00470004A EP 00470004 A EP00470004 A EP 00470004A EP 1041217 A1 EP1041217 A1 EP 1041217A1
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EP
European Patent Office
Prior art keywords
openings
evacuation device
rainwater
cap
roof
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
EP00470004A
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German (de)
French (fr)
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EP1041217B1 (en
Inventor
Pierre Barbe
Jean-Pierre Bialek
Serge Renard
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.)
Saint Gobain PAM SA
Original Assignee
Pont a Mousson SA
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Publication of EP1041217A1 publication Critical patent/EP1041217A1/en
Application granted granted Critical
Publication of EP1041217B1 publication Critical patent/EP1041217B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0413—Strainers for drainage outlets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the present invention relates to a device evacuation of rainwater from roof surfaces terrace of the buildings and, more particularly, a closed or siphon discharge device.
  • Siphoid flow is characterized by the absence entrainment of air in the water current which crosses the conduct; water occupies its entire section, hence a maximum flow.
  • a cover of section greater than that of the orifice but lower than that of the tank; this cover that one can also call anti-vortex device, has for function to prevent air from entering the pipe evacuation and, as a result, the formation of a vortex air when the water level in the tank is above of the cover, so that the flow in the pipe is a siphon or closed flow.
  • All these vertical exhaust pipes are connected by their lower end of a manifold, roughly horizontal, intended to conduct rainwater towards a sewerage or sewer system.
  • the terraced roofs are surrounded by a low wall in the form of a rim intended to retain water in the event of strong rain and thus avoid its runoff on the facade of the building.
  • the rainwater drainage system is supplemented by at least one device of the same type as those described above, but with the particularity to have a rim in the shape of a hollow cylinder of outer diameter slightly smaller than the diameter inside the upper end of the tank so that come to nest there.
  • the height protruding from this ledge is slightly less than the admissible water height on the roof, which is determined by mechanical strength of the frame or the slab which supports it.
  • This drainage device intended to serve as an overflow connected by its lower end to a pipe specific to direct any content to a gutter at the base of the building.
  • the overflow remains unused and rainwater collected by the roof are evacuated by the devices flush with the roof surface: at low flow all first, with air entrainment, as long as the water level in the bin has not reached the cover then, if the rains increase or persist, when the height of the water in the tank is more important and than this submerges the cover, without entrainment of air and closed or siphon discharge. Flow in pipes increases accordingly. In such circumstances, the water level on the roof remains below the height of the edge of the drainage device used in overflow.
  • every flush evacuation devices work very quickly in closed flow and, despite the flow important in the pipes, the water level rises very quickly on the roof. When it reaches a height greater than the height of the rim of the forming device overflow, the excess water is discharged by it to the bottom of the building and the water level on the roof remains constant at the height of the rains.
  • the flow of each flush evacuation device is maximum and the sum of these flows can create an overload on the level of main collector.
  • buffer tanks are also linked, downstream, to sewerage or sewer pipes in the service public.
  • the object of the present invention is to remedy these disadvantages by proposing a device for evacuating rainwater, with siphon or closed flow, which may evacuate water from terraced roofs, regulating the flow of water flow so as not to overload the collective pipes during exceptional rains, while avoiding the construction of buffer tanks.
  • the principle of the invention is to produce a device for evacuating rainwater at a flow rate predetermined and constant corresponding to a very low water level on the roof until it reaches, in the case storms for example, a critical level on said roof which results in the submersion of said device and evacuation at high flow, especially in closed flow, of water excess on the roof. Below this critical level, determined by the maximum admissible water height on the roof, the evacuation rate becomes again predetermined and constant until the water runs out detention. In this way, the water from a thunderstorm that will have fallen in a few tens of minutes can be eliminated, at one moderate flow, in several hours without overloading sewers.
  • the invention relates to a device drainage of rainwater from the surface of a roof on a building terrace with a drainage pipe vertical with the upper end assembled coaxially with the bottom of a section collecting tank greater than that of the pipe inlet and the upper edge of which is placed higher that said orifice, a section anti-vortex device intermediate between that of the drain pipe and that of the collector and height less than the depth of the bin, a cap-shaped strike guard, characterized in that the hat is extended inside by a roughly cylindrical part coaxial with the body of the strike guard, longer than the height of the hat, intended for fit inside the collecting tank in such a way the lower edge of the hat rests on the brim upper part of the collecting tank or at its level.
  • figure 1 represents a rainwater evacuation device according to the invention installed in an opening 1 practiced in a roofing slab T.
  • This device comprises a discharge pipe 2 vertical surmounted by a collecting tank 3 whose edge upper 4 rests at the bottom of a cavity 5 formed in the thickness of the roof slab T and surrounding widely opening 1.
  • the collecting tank 3 has an upper section to that of the inlet 6 of the discharge pipe 2.
  • An anti-vortex device 7 known from the state of the technique, the section of which is intermediate between that of drain pipe 2 and that of the collecting tank 3 and of which the height is less than the depth of said tank collector, is fixed or simply placed at the bottom of the tank on the inlet of the drain pipe 2.
  • the lower part of hat 9 of the strike guard 8 then comes to rest on the bottom of the cavity 5.
  • All the elements making up the device such as the drain hose 2, the tank manifold 3, anti-vortex device 7 and the strike guard 8 are assembled coaxially along an axis A-A '.
  • FIG. 2 shows a strike guard 8 in section diametral according to the invention. This drawing shows partially the two elements constituting the strike guard : the cap 9 and the body 10.
  • Cap 9 is curved and is formed, on about almost its entire height, by radial strips 12 which delimit between them 13 long radial openings and narrow. At its lower part, a solid border 15 keeps the lower ends of the slats 12 on a circumference by preventing them from shifting one by compared to each other.
  • the upper part of the cap 9, which is roughly flat, as shown in Figure 3, has openings radials arranged in three concentric rings: starting from the center, the first crown wears openings 17, the second door of the openings 16 and the third of the openings 14.
  • the body 10 of the strike guard 8 is provided with openings vertical on two levels.
  • the 18 most openings high are made in slots and each of them opens upwards on each of the openings 14 of the hat. They thus communicate the upper part external of the cap 9 through the openings 14 both with inside the hat, i.e. with the volume included between the hat and upper body 10, and also with inside the body 10.
  • the height of these openings 18, in particular the position of their lower part, determines, when the strike guard 8 is installed on the tank collector 3, a level of overflow and, by that, the maximum height of water retained on the roof T ( Figure 1).
  • Roughly rectangular openings 19 are formed around the entire periphery of the body 10, at a level lower than that of the openings 18.
  • the top of these openings 19 is substantially located halfway up the cap 9 and the sum of their passage sections is substantially equivalent to the cross section of the pipe 2.
  • the body 10 of the strike guard has a slight taper directed inwards as well as a chamfer external device at its lower end for facilitate its introduction at seal 11 in the collector 3.
  • the device is installed on a T roof.
  • the rain falling on the roof T flows first in the cavity 5 until submerging the solid border 15 which also has the function of retaining in the cavity 5 the granular detritus such as sand. Water flows through then the openings 13 formed by the strips 12 of the cap 9 and comes to fill the cavity 5 up to the level lower openings 19, the seal 11 preventing a leak to the collecting tank 3. Any sheets dead are retained by the blades 12.
  • the water will then cross the openings 19 to flow into the collecting tank 3 then, by the anti-vortex device 7, towards the evacuation pipe 2.
  • the water level on the roof is almost zero and air is entrained in the Drain pipe ; the cavity 5 is filled.
  • the openings 19 are saturated and provide a constant and limiting flow water drain.
  • the sections of the openings 19 are such that the flow in the discharge pipe 2 is not not closed or siphoid, i.e. there is still air entrainment. This flow remains constant and the height of water on the roof T can increase until reaching a maximum C-C 'predetermined which corresponds to the lower part openings 18 in slots of the strike guard 8.
  • the hat of the strike guard is submerged, the water then passes through all openings 14, 18, 16 and 17, the water flow increases and the flow becomes, in the discharge pipe 2, siphoid or closed, that is to say without air entrainment. The flow is then maximum.
  • the roof thus equipped, makes retention tank office which empties offline by in relation to precipitation.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Emergency Lowering Means (AREA)
  • Catching Or Destruction (AREA)
  • Safety Valves (AREA)
  • Laser Beam Processing (AREA)
  • Massaging Devices (AREA)
  • Centrifugal Separators (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Road Signs Or Road Markings (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

Rainwater evacuation device has vertical evacuation pipe upper end of which is assembled coaxially with bottom of collector tray. Anti-vortex device (8) has dome shaped cap (9) extending inside by coaxial cylindrical part (10), longer than height of cap, fit inside collector tray so that lower edge of cap rests on edge of tray. Cap is provided with radial strips (12) over all its periphery delimiting long and narrow openings (13) as well as wide rad openings (17,16,14) arranged along three concentric crowns in its upper part.

Description

La présente invention concerne un dispositif d'évacuation des eaux pluviales des surfaces de toitures en terrasse des bâtiments et, plus particulièrement, un dispositif d'évacuation à écoulement fermé ou siphoïde.The present invention relates to a device evacuation of rainwater from roof surfaces terrace of the buildings and, more particularly, a closed or siphon discharge device.

L'écoulement siphoïde est caractérisé par l'absence d'entraínement d'air dans le courant d'eau qui traverse la conduite ; l'eau occupe la totalité de sa section, d'où un débit maximum.Siphoid flow is characterized by the absence entrainment of air in the water current which crosses the conduct; water occupies its entire section, hence a maximum flow.

On connaít, par la demande de brevet allemand DE-2725468, une installation d'évacuation des eaux pluviales d'une toiture équipée de dispositifs de ce type. Chacun d'eux est constitué par un tuyau d'évacuation vertical dont l'extrémité supérieure est assemblée coaxialement avec un bac dont la section est supérieure à celle de l'orifice d'entrée du tuyau d'évacuation. Le bord supérieur du bac vient en affleurement avec le niveau de la terrasse. A une certaine distance au-dessus de l'orifice du tuyau d'évacuation et plus bas que le bord supérieur du bac est fixé un couvercle, de section supérieure à celle de l'orifice mais inférieure à celle du bac ; ce couvercle que l'on peut appeler aussi dispositif anti-vortex, a pour fonction d'empêcher l'entrée de l'air dans le tuyau d'évacuation et, par suite, la formation d'un tourbillon d'air lorsque le niveau de l'eau dans le bac se trouve au-dessus du couvercle, de sorte que l'écoulement dans le tuyau est un écoulement siphoïde ou fermé. Tous ces conduits d'évacuation verticaux sont raccordés par leur extrémité inférieure à un collecteur, à peu près horizontal, destiné à conduire les eaux pluviales vers un réseau d'assainissement ou des égouts.We know, by the German patent application DE-2725468, a water drainage installation rainwater from a roof fitted with devices of this type. Each of them is constituted by a drain pipe vertical with the upper end assembled coaxially with a tank whose cross section is greater than that of the inlet of the drain pipe. The edge upper part of the tank comes flush with the level of the terrace. At a certain distance above the orifice of the drain pipe and lower than the upper edge of the tank is fixed a cover, of section greater than that of the orifice but lower than that of the tank; this cover that one can also call anti-vortex device, has for function to prevent air from entering the pipe evacuation and, as a result, the formation of a vortex air when the water level in the tank is above of the cover, so that the flow in the pipe is a siphon or closed flow. All these vertical exhaust pipes are connected by their lower end of a manifold, roughly horizontal, intended to conduct rainwater towards a sewerage or sewer system.

Les toitures en terrasse sont entourées d'un muret en forme de rebord destiné à retenir l'eau en cas de fortes pluies et d'éviter ainsi son ruissellement sur la façade du bâtiment.The terraced roofs are surrounded by a low wall in the form of a rim intended to retain water in the event of strong rain and thus avoid its runoff on the facade of the building.

Selon le document allemand DE-2725468, l'installation d'évacuation des eaux pluviales est complétée par au moins un dispositif du même type que ceux décrits précédemment, mais présentant la particularité d'être muni d'un rebord en forme de cylindre creux de diamètre extérieur légèrement inférieur au diamètre intérieur de l'extrémité supérieure du bac de manière à venir s'y emboíter. La hauteur dépassant de ce rebord est légèrement inférieure à la hauteur d'eau admissible sur le toit, celle-ci étant déterminée par la résistance mécanique de la charpente ou de la dalle qui le supporte. Ce dispositif d'évacuation, destiné à servir de trop-plein est relié, par son extrémité inférieure, à une conduite spécifique pour diriger son contenu éventuel vers un caniveau à la base de l'immeuble.According to German document DE-2725468, the rainwater drainage system is supplemented by at least one device of the same type as those described above, but with the particularity to have a rim in the shape of a hollow cylinder of outer diameter slightly smaller than the diameter inside the upper end of the tank so that come to nest there. The height protruding from this ledge is slightly less than the admissible water height on the roof, which is determined by mechanical strength of the frame or the slab which supports it. This drainage device, intended to serve as an overflow connected by its lower end to a pipe specific to direct any content to a gutter at the base of the building.

La plupart du temps, lors de pluies faibles, le trop-plein reste inutilisé et les eaux pluviales recueillies par la toiture s'évacuent par les dispositifs affleurant la surface du toit : à faible débit tout d'abord, avec entraínement d'air, tant que le niveau d'eau dans le bac n'a pas atteint le couvercle puis, si les pluies augmentent ou persistent, lorsque la hauteur de l'eau dans le bac est plus importante et que celle-ci submerge le couvercle, sans entraínement d'air et écoulement fermé ou siphoïde. Le débit dans les conduites augmente en conséquence. Dans de telles circonstances, le niveau d'eau sur la toiture reste inférieur à la hauteur du rebord du dispositif d'évacuation utilisé en trop-plein.Most of the time, during light rains, the overflow remains unused and rainwater collected by the roof are evacuated by the devices flush with the roof surface: at low flow all first, with air entrainment, as long as the water level in the bin has not reached the cover then, if the rains increase or persist, when the height of the water in the tank is more important and than this submerges the cover, without entrainment of air and closed or siphon discharge. Flow in pipes increases accordingly. In such circumstances, the water level on the roof remains below the height of the edge of the drainage device used in overflow.

Dans d'autres cas, plus exceptionnels, par exemple, lors de pluies d'orages particulièrement violents tous les dispositifs d'évacuation affleurants fonctionnent très rapidement en écoulement fermé et, malgré le débit important dans les conduites, le niveau de l'eau augmente très vite sur le toit. Lorsqu'il atteint une hauteur supérieure à la hauteur du rebord du dispositif formant trop-plein, l'excédent d'eau est évacué par celui-ci vers le bas de l'immeuble et le niveau d'eau sur le toit reste constant au plus fort des pluies. Cependant, le débit de chaque dispositif d'évacuation affleurant est maximum et la somme de ces débits peut créer une surcharge au niveau du collecteur principal.In other, more exceptional cases, for example, during particularly heavy thunderstorms every flush evacuation devices work very quickly in closed flow and, despite the flow important in the pipes, the water level rises very quickly on the roof. When it reaches a height greater than the height of the rim of the forming device overflow, the excess water is discharged by it to the bottom of the building and the water level on the roof remains constant at the height of the rains. However, the flow of each flush evacuation device is maximum and the sum of these flows can create an overload on the level of main collector.

Néanmoins, la masse d'eau retenue momentanément sur le toit reste inférieure à une masse critique préalablement définie en fonction de la résistance mécanique de la charpente ou de la dalle.However, the body of water temporarily retained on the roof remains below a critical mass previously defined according to the mechanical resistance of the frame or slab.

Ce genre d'immeubles recouverts par des toits en terrasse a tendance à se multiplier, notamment dans certaines zones d'activités commerciales ou industrielles, et le volume de l'eau drainé par tous ces toits en terrasse tend à augmenter considérablement. Si bien que, lors de pluies très importantes, voire exceptionnelles, qui tombent en très peu de temps, les canalisations d'assainissement ne peuvent plus évacuer une quantité d'eau aussi importante dans un temps aussi court.This kind of buildings covered by roofs in terrace tends to multiply, especially in certain areas of commercial or industrial activity, and the volume of water drained by all these terraced roofs tends to increase considerably. So much so that when very heavy, even exceptional, rain in a very short time, the sanitation pipes do not can no longer drain as much water in such a short time.

Pour remédier à ces difficultés, des architectes font parfois enterrer, au pied de ces immeubles, des citernes de grande capacité dans lesquelles aboutissent les tuyaux d'évacuation des dispositifs installés sur les toitures. Ces citernes que l'on qualifiera de « citernes-tampons » sont également reliées, en aval, aux canalisations d'assainissement ou aux égouts du service public.To remedy these difficulties, architects are sometimes buried, at the foot of these buildings, large capacity tanks into which the evacuation pipes of the devices installed on the roofs. These tanks which will be called "buffer tanks Are also linked, downstream, to sewerage or sewer pipes in the service public.

Lors de pluies exceptionnellement abondantes, pendant lesquelles beaucoup d'eau tombe en très peu de temps, les eaux pluviales drainées de la toiture sont stockées dans ces citernes et, dès que possible, lorsque les égouts sont libérés, après un orage par exemple, ces citernes sont vidées, à un débit raisonnable, dans les canalisations ou les égouts du service public où cette eau peut s'écouler librement, sans créer de surcharge.During exceptionally heavy rains, during which a lot of water falls in very little time, the rainwater drained from the roof is stored in these tanks and, as soon as possible, when the sewers are released, after a storm for example, these tanks are emptied at a reasonable rate within public service pipes or sewers where this water can flow freely, without creating overload.

Cependant, la réalisation de telles citernes-tampons, le plus souvent enterrées, entraíne des travaux importants, très onéreux et la place n'est pas toujours disponible pour les installer.However, the realization of such buffer tanks, most often buried, causes work important, very expensive and the place is not always available to install them.

La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif d'évacuation des eaux pluviales, à écoulement siphoïde ou fermé, qui puisse évacuer l'eau des toits en terrasse, en régulant le débit d'écoulement de l'eau afin de ne pas surcharger les canalisations collectives lors de pluies exceptionnelles, tout en évitant la construction de citernes-tampons.The object of the present invention is to remedy these disadvantages by proposing a device for evacuating rainwater, with siphon or closed flow, which may evacuate water from terraced roofs, regulating the flow of water flow so as not to overload the collective pipes during exceptional rains, while avoiding the construction of buffer tanks.

Le principe de l'invention est de réaliser un dispositif d'évacuation des eaux pluviales à un débit prédéterminé et constant correspondant à un très faible niveau d'eau sur la toiture jusqu'à atteindre, dans le cas d'orages par exemple, un niveau critique sur ladite toiture qui entraíne la submersion dudit dispositif et l'évacuation à fort débit, notamment en écoulement fermé, de l'eau excédentaire sur la toiture. En deçà de ce niveau critique, déterminé par la hauteur d'eau maximale admissible sur la toiture, le débit d'évacuation devient à nouveau prédéterminé et constant jusqu'à épuisement de l'eau retenue. De cette façon, l'eau d'un orage qui sera tombée en quelques dizaines de minutes pourra s'éliminer, à un débit modéré, en plusieurs heures sans surcharger les égouts.The principle of the invention is to produce a device for evacuating rainwater at a flow rate predetermined and constant corresponding to a very low water level on the roof until it reaches, in the case storms for example, a critical level on said roof which results in the submersion of said device and evacuation at high flow, especially in closed flow, of water excess on the roof. Below this critical level, determined by the maximum admissible water height on the roof, the evacuation rate becomes again predetermined and constant until the water runs out detention. In this way, the water from a thunderstorm that will have fallen in a few tens of minutes can be eliminated, at one moderate flow, in several hours without overloading sewers.

A cette fin, l'invention concerne un dispositif d'évacuation des eaux pluviales de la surface d'une toiture en terrasse de bâtiment comportant un tuyau d'évacuation vertical dont l'extrémité supérieure est assemblée coaxialement avec le fond d'un bac collecteur de section supérieure à celle de l'orifice d'entrée du tuyau d'évacuation et dont le bord supérieur est placé plus haut que ledit orifice, un dispositif anti-vortex de section intermédiaire entre celle du tuyau d'évacuation et celle du bac collecteur et de hauteur inférieure à la profondeur du bac, un garde-grève à chapeau de forme bombée, caractérisé en ce que le chapeau se prolonge à l'intérieur par une partie à peu près cylindrique coaxiale au corps du garde-grève, plus longue que la hauteur du chapeau, destinée à s'emboíter à l'intérieur du bac collecteur de telle façon que le bord inférieur du chapeau repose sur le bord supérieur du bac collecteur ou à son niveau. To this end, the invention relates to a device drainage of rainwater from the surface of a roof on a building terrace with a drainage pipe vertical with the upper end assembled coaxially with the bottom of a section collecting tank greater than that of the pipe inlet and the upper edge of which is placed higher that said orifice, a section anti-vortex device intermediate between that of the drain pipe and that of the collector and height less than the depth of the bin, a cap-shaped strike guard, characterized in that the hat is extended inside by a roughly cylindrical part coaxial with the body of the strike guard, longer than the height of the hat, intended for fit inside the collecting tank in such a way the lower edge of the hat rests on the brim upper part of the collecting tank or at its level.

Le dispositif d'évacuation selon l'invention peut, de plus, présenter une ou plusieurs des caractéristiques suivantes :

  • le chapeau du garde-grève est pourvu de lamelles radiales sur toute sa périphérie délimitant des ouvertures longues et étroites et sa partie supérieure est faiblement bombée,
  • les ouvertures longues et étroites du chapeau en couvrent à peu près toute la hauteur,
  • la partie supérieure faiblement bombée du chapeau est pourvue de larges ouvertures radiales disposées selon trois couronnes concentriques,
  • la surface totale des ouvertures du chapeau du garde-grève est très supérieure à la surface de la section de l'orifice d'entrée du tuyau d' évacuation,
  • le corps du garde-grève est muni, dans sa partie supérieure et sur toute sa périphérie, d'ouvertures verticales à peu près rectangulaires,
  • les ouvertures verticales à peu près rectangulaires du corps du garde-grève sont réalisées sur deux niveaux suivant deux lignes circonférentielles parallèles,
  • chacune des ouvertures verticales à peu près rectangulaires du niveau le plus élevé débouche, vers le haut, sur chacune des ouvertures radiales de l'une des couronnes concentriques du chapeau, plus particulièrement sur celle de plus grand diamètre,
  • les ouvertures verticales du niveau le plus élevé déterminent, lorsque le garde-grève est installé sur le bac collecteur, la hauteur d'eau maximale retenue sur le toit,
  • l'axe médian qui traverse deux ouvertures à peu près rectangulaires, diamétralement opposées, du niveau le plus bas, est dans le plan de la toiture lorsque le garde-grève est en place sur le bac collecteur,
  • le bord supérieur du bac collecteur est plus bas que le plan de la toiture,
  • le bac collecteur est installé dans une cavité de plus grand diamètre que celui du chapeau du garde-grève,
  • la cavité a une profondeur telle que, le garde-grève étant installé sur le bac collecteur et reposant sur le fond de ladite cavité, la base des ouvertures verticales les plus élevées du corps du garde-grève corresponde au niveau maximum de l'eau à retenir sur la toiture,
  • le rapport de la surface totale des ouvertures verticales les plus basses du corps du garde-grève à la surface de la section de l'orifice d'entrée du tuyau d'évacuation est sensiblement équivalent à 1,
  • l'étanchéité entre le bord supérieur du bac collecteur et le corps du garde-grève est assurée par un joint, de préférence un joint torique,
  • la partie inférieure du corps du garde-grève présente une légère conicité vers l'intérieur.
The evacuation device according to the invention can also have one or more of the following characteristics:
  • the cap of the striker is provided with radial strips over its entire periphery delimiting long and narrow openings and its upper part is slightly curved,
  • the long, narrow hat openings cover almost the entire height,
  • the slightly curved upper part of the cap is provided with large radial openings arranged in three concentric rings,
  • the total area of the strike guard hatch openings is much greater than the area of the section of the inlet opening of the discharge pipe,
  • the body of the striker is provided, in its upper part and over its entire periphery, with roughly rectangular vertical openings,
  • the roughly rectangular vertical openings in the body of the strike guard are made on two levels along two parallel circumferential lines,
  • each of the roughly rectangular vertical openings of the highest level opens upwards on each of the radial openings of one of the concentric crowns of the cap, more particularly on that of larger diameter,
  • the vertical openings of the highest level determine, when the strike guard is installed on the collecting tank, the maximum height of water retained on the roof,
  • the median axis which crosses two roughly rectangular, diametrically opposite openings, from the lowest level, is in the plane of the roof when the strike guard is in place on the collecting tank,
  • the upper edge of the collecting tank is lower than the plane of the roof,
  • the collecting tank is installed in a cavity of larger diameter than that of the cap of the strike guard,
  • the cavity has a depth such that, the striker being installed on the collecting tank and resting on the bottom of said cavity, the base of the highest vertical openings of the body of the striker corresponds to the maximum level of water at retain on the roof,
  • the ratio of the total area of the lowest vertical openings in the body of the striker to the area of the section of the inlet opening of the discharge pipe is substantially equivalent to 1,
  • the seal between the upper edge of the collecting tank and the body of the strike guard is ensured by a seal, preferably an O-ring,
  • the lower part of the strike guard has a slight inward taper.

D'autres caractéristiques et avantages de l'invention apparaítront au cours de la description qui va suivre, illustrée par les dessins joints dans lesquels :

  • La figure 1 montre, en coupe transversale partielle, un dispositif d'évacuation des eaux pluviales suivant l'invention installé sur une toiture de bâtiment,
  • la figure 2 montre, en coupe diamétrale, un garde-grève selon l'invention,
  • la figure 3 montre le chapeau du garde-grève.
Other characteristics and advantages of the invention will appear during the description which follows, illustrated by the accompanying drawings in which:
  • FIG. 1 shows, in partial cross section, a device for evacuating rainwater according to the invention installed on a building roof,
  • FIG. 2 shows, in diametral section, a strike guard according to the invention,
  • Figure 3 shows the strike guard's hat.

L'exemple d'exécution de la figure 1 représente un dispositif d'évacuation des eaux pluviales selon l'invention installé dans une ouverture 1 pratiquée dans une dalle de toiture T. The example of execution of figure 1 represents a rainwater evacuation device according to the invention installed in an opening 1 practiced in a roofing slab T.

Ce dispositif comporte un tuyau d'évacuation 2 vertical surmonté d'un bac collecteur 3 dont le bord supérieur 4 repose au fond d'une cavité 5 ménagée dans l'épaisseur de la dalle de toiture T et entourant largement l'ouverture 1.This device comprises a discharge pipe 2 vertical surmounted by a collecting tank 3 whose edge upper 4 rests at the bottom of a cavity 5 formed in the thickness of the roof slab T and surrounding widely opening 1.

Le bac collecteur 3 présente une section supérieure à celle de l'orifice d'entrée 6 du tuyau d'évacuation 2.The collecting tank 3 has an upper section to that of the inlet 6 of the discharge pipe 2.

Un dispositif anti-vortex 7, connu de l'état de la technique, dont la section est intermédiaire entre celle du tuyau d'évacuation 2 et celle du bac collecteur 3 et dont la hauteur est inférieure à la profondeur dudit bac collecteur, est fixé ou simplement posé au fond du bac sur l'orifice d'entrée du tuyau d'évacuation 2.An anti-vortex device 7, known from the state of the technique, the section of which is intermediate between that of drain pipe 2 and that of the collecting tank 3 and of which the height is less than the depth of said tank collector, is fixed or simply placed at the bottom of the tank on the inlet of the drain pipe 2.

Un garde-grève 8, formé par un chapeau 9 bombé qui se prolonge à l'intérieur par une partie à peu près cylindrique ou corps 10 du garde-grève coiffe le bac collecteur 3 en venant s'emboíter, par la base du corps 10, dans ledit bac collecteur 3 écrasant radialement un joint 11, de préférence torique, dont est pourvu le bord supérieur 4 du bac collecteur afin de réaliser l'étanchéité entre le corps 10 et le bac collecteur 3 ainsi que le maintien mécanique du garde-grève 8 sur le bac collecteur 3. La partie inférieure du chapeau 9 du garde-grève 8 vient alors reposer sur le fond de la cavité 5.A strike guard 8, formed by a domed cap 9 which extends inside by a part roughly cylindrical or body 10 of the striker cap the tank collector 3 coming to fit, by the base of the body 10, in said collecting tank 3 radially crushing a seal 11, preferably toric, with which the edge is provided upper 4 of the collecting tank in order to achieve sealing between the body 10 and the collecting tank 3 as well as the mechanical retention of the strike guard 8 on the tank collector 3. The lower part of hat 9 of the strike guard 8 then comes to rest on the bottom of the cavity 5.

Tous les éléments constituant le dispositif d'évacuation tels que le tuyau d'évacuation 2, le bac collecteur 3, le dispositif anti-vortex 7 et le garde-grève 8 sont assemblés coaxialement suivant un axe A-A'.All the elements making up the device such as the drain hose 2, the tank manifold 3, anti-vortex device 7 and the strike guard 8 are assembled coaxially along an axis A-A '.

La figure 2 représente un garde-grève 8 en coupe diamétrale selon l'invention. Ce dessin montre partiellement les deux éléments constituant le garde-grève : le chapeau 9 et le corps 10.Figure 2 shows a strike guard 8 in section diametral according to the invention. This drawing shows partially the two elements constituting the strike guard : the cap 9 and the body 10.

Le chapeau 9 est bombé et il est formé, sur à peu près toute sa hauteur, par des lamelles radiales 12 qui délimitent entre elles des ouvertures radiales 13 longues et étroites. A sa partie inférieure, une bordure pleine 15 maintient les extrémités inférieures des lamelles 12 sur une circonférence en les empêchant de se décaler l'une par rapport à l'autre.Cap 9 is curved and is formed, on about almost its entire height, by radial strips 12 which delimit between them 13 long radial openings and narrow. At its lower part, a solid border 15 keeps the lower ends of the slats 12 on a circumference by preventing them from shifting one by compared to each other.

La partie supérieure du chapeau 9, à peu près plate, comme le montre la figure 3, est munie d'ouvertures radiales disposées suivant trois couronnes concentriques : en partant du centre, la première couronne porte des ouvertures 17, la seconde porte des ouvertures 16 et la troisième des ouvertures 14.The upper part of the cap 9, which is roughly flat, as shown in Figure 3, has openings radials arranged in three concentric rings: starting from the center, the first crown wears openings 17, the second door of the openings 16 and the third of the openings 14.

Le corps 10 du garde-grève 8 est muni d'ouvertures verticales sur deux niveaux. Les ouvertures 18 les plus hautes sont réalisées en créneaux et chacune d'elles s'ouvre vers le haut sur chacune des ouvertures 14 du chapeau. Elles font ainsi communiquer la partie supérieure externe du chapeau 9 par les ouvertures 14 à la fois avec l'intérieur du chapeau, c'est-à-dire avec le volume compris entre le chapeau et le haut du corps 10, et aussi avec l'intérieur du corps 10. La hauteur de ces ouvertures 18, notamment la position de leur partie inférieure, détermine, lorsque le garde-grève 8 est installé sur le bac collecteur 3, un niveau de trop plein et, par là, la hauteur maximale d'eau retenue sur la toiture T (figure 1).The body 10 of the strike guard 8 is provided with openings vertical on two levels. The 18 most openings high are made in slots and each of them opens upwards on each of the openings 14 of the hat. They thus communicate the upper part external of the cap 9 through the openings 14 both with inside the hat, i.e. with the volume included between the hat and upper body 10, and also with inside the body 10. The height of these openings 18, in particular the position of their lower part, determines, when the strike guard 8 is installed on the tank collector 3, a level of overflow and, by that, the maximum height of water retained on the roof T (Figure 1).

Des ouvertures 19 à peu près rectangulaires sont ménagées sur toute la périphérie du corps 10, à un niveau inférieur à celui des ouvertures 18. Le haut de ces ouvertures 19 est sensiblement situé à mi-hauteur du chapeau 9 et la somme de leurs sections de passage est sensiblement équivalente à la section de passage du tuyau d'évacuation 2.Roughly rectangular openings 19 are formed around the entire periphery of the body 10, at a level lower than that of the openings 18. The top of these openings 19 is substantially located halfway up the cap 9 and the sum of their passage sections is substantially equivalent to the cross section of the pipe 2.

D'autre part, lorsque le garde-grève 8 est installé sur le bac collecteur 3, un axe B-B' médian qui traverse deux ouvertures 19 diamétralement opposées passe par le plan P de la toiture T.On the other hand, when the strike guard 8 is installed on the collecting tank 3, a median axis B-B 'which crosses two diametrically opposite openings 19 pass through the plan P of the roof T.

Le corps 10 du garde-grève présente une légère conicité dirigée vers l'intérieur ainsi qu'un chanfrein périphérique externe à son extrémité inférieure pour faciliter son introduction au niveau du joint 11 dans le bac collecteur 3. The body 10 of the strike guard has a slight taper directed inwards as well as a chamfer external device at its lower end for facilitate its introduction at seal 11 in the collector 3.

Fonctionnement du dispositif d'évacuation des eaux pluviales :Operation of the rainwater evacuation device:

Comme représenté sur la figure 1, le dispositif est installé sur une toiture T.As shown in Figure 1, the device is installed on a T roof.

La pluie qui tombe sur la toiture T s'écoule d'abord dans la cavité 5 jusqu'à submerger la bordure pleine 15 qui a aussi pour fonction de retenir dans la cavité 5 les détritus granulaires tels que le sable. L'eau traverse ensuite les ouvertures 13 formées par les lamelles 12 du chapeau 9 et vient remplir la cavité 5 jusqu'au niveau inférieur des ouvertures 19, le joint 11 empêchant une fuite vers le bac collecteur 3. D'éventuelles feuilles mortes sont retenues par les lamelles 12.The rain falling on the roof T flows first in the cavity 5 until submerging the solid border 15 which also has the function of retaining in the cavity 5 the granular detritus such as sand. Water flows through then the openings 13 formed by the strips 12 of the cap 9 and comes to fill the cavity 5 up to the level lower openings 19, the seal 11 preventing a leak to the collecting tank 3. Any sheets dead are retained by the blades 12.

La pluie persistant, l'eau va ensuite franchir les ouvertures 19 pour s'écouler dans le bac collecteur 3 puis, par le dispositif anti-vortex 7, vers le tuyau d'évacuation 2.As the rain persists, the water will then cross the openings 19 to flow into the collecting tank 3 then, by the anti-vortex device 7, towards the evacuation pipe 2.

A ce stade de fonctionnement, le niveau d'eau sur la toiture est quasiment nul et de l'air est entraíné dans le tuyau d'évacuation ; la cavité 5 est remplie.At this stage of operation, the water level on the roof is almost zero and air is entrained in the Drain pipe ; the cavity 5 is filled.

Si la pluie devient plus forte, les ouvertures 19 sont saturées et assurent un débit limite et constant d'évacuation de l'eau. Les sections des ouvertures 19 sont telles que l'écoulement dans le tuyau d'évacuation 2 n'est pas fermé ou siphoïde, c'est-à-dire qu'il y a encore entraínement d'air. Ce débit reste constant et la hauteur d'eau sur la toiture T peut augmenter jusqu'à atteindre un maximum C-C' prédéterminé qui correspond à la partie basse des ouvertures 18 en créneaux du garde-grève 8.If the rain becomes stronger, the openings 19 are saturated and provide a constant and limiting flow water drain. The sections of the openings 19 are such that the flow in the discharge pipe 2 is not not closed or siphoid, i.e. there is still air entrainment. This flow remains constant and the height of water on the roof T can increase until reaching a maximum C-C 'predetermined which corresponds to the lower part openings 18 in slots of the strike guard 8.

Au delà de cette limite, le chapeau du garde-grève est submergé, l'eau passe alors par toutes les ouvertures 14, 18, 16 et 17, le débit d'eau augmente et l'écoulement devient, dans le tuyau d'évacuation 2, siphoïde ou fermé, c'est-à-dire sans entraínement d'air. Le débit est alors maximum..Beyond this limit, the hat of the strike guard is submerged, the water then passes through all openings 14, 18, 16 and 17, the water flow increases and the flow becomes, in the discharge pipe 2, siphoid or closed, that is to say without air entrainment. The flow is then maximum.

Il est bien entendu que le nombre de dispositifs d'évacuation doit être proportionné en fonction de la surface de la toiture T et aussi en fonction des précipitations locales.It is understood that the number of devices must be proportionate according to the roof area T and also depending on local precipitation.

Le plus souvent, la hauteur de l'eau n'atteindra pas le niveau C-C' et s'écoulera à un débit constant acceptable par le dimensionnement du réseau public, qu'il s'agisse de pluies faibles et persistantes ou de pluies d'orages qui produisent une quantité d'eau importante en très peu de temps. Dans ce dernier cas, la toiture, ainsi équipée, fait office de bac de rétention qui se vide en différé par rapport aux précipitations.Most often, the height of the water will not reach level C-C 'and will flow at an acceptable constant flow by sizing the public network, whether light and persistent rain or thunderstorm rain which produce a significant amount of water in very little time. In the latter case, the roof, thus equipped, makes retention tank office which empties offline by in relation to precipitation.

Claims (16)

Dispositif d'évacuation des eaux pluviales de la surface d'une toiture (T) en terrasse de bâtiment comportant un tuyau d'évacuation (2) vertical dont l'extrémité supérieure est assemblée coaxialement avec le fond d'un bac collecteur (3) de section supérieure à celle de l'orifice d'entrée (6) du tuyau d'évacuation (2) et dont le bord supérieur (4) est placé plus haut que ledit orifice, un dispositif anti-vortex (7) de section intermédiaire entre celle du tuyau d'évacuation (2) et celle du bac collecteur (3) et de hauteur inférieure à la profondeur du bac, un garde-grève (8) à chapeau (9) de forme bombée, caractérisé en ce que le chapeau (9) se prolonge à l'intérieur par une partie à peu près cylindrique coaxiale ou corps (10) du garde-grève plus longue que la hauteur du chapeau (9), destinée à s'emboíter à l'intérieur du bac collecteur (3) de telle façon que le bord inférieur du chapeau (9) repose sur le bord supérieur (4) du bac collecteur (3) ou à son niveau.Device for evacuating rainwater from the surface of a roof (T) on a building terrace comprising a vertical discharge pipe (2) of which the upper end is assembled coaxially with the bottom of a collecting tank (3) with a cross section greater than that of the inlet (6) of the discharge pipe (2) and of which the upper edge (4) is placed higher than said orifice, a section anti-vortex device (7) intermediate between that of the discharge pipe (2) and that of the collecting tank (3) and of height less than the depth of the tank, a strike guard (8) with cap (9) of curved shape, characterized in that the cap (9) is extends inside by a part roughly cylindrical coaxial or body (10) of the strike more as long as the height of the cap (9), intended to fit together inside the collecting tank (3) so that the lower edge of hat (9) rests on edge upper (4) of the collecting tank (3) or at its level. Dispositif d'évacuation des eaux pluviales selon la revendication 1, caractérisé en ce que le chapeau (9) du garde-grève (8) est pourvu de lamelles (12) radiales sur toute sa périphérie délimitant des ouvertures (13) longues et étroites et que sa partie supérieure est faiblement bombée.Rainwater evacuation device according to claim 1, characterized in that the cap (9) of the strike guard (8) is provided with radial strips (12) on its entire periphery defining long openings (13) and narrow and that its upper part is weakly domed. Dispositif d'évacuation des eaux pluviales selon la revendication 2, caractérisé en ce que les ouvertures (13) longues et étroites du chapeau (9) s'étendent sur à peu près toute la hauteur dudit chapeau.Rainwater evacuation device according to claim 2, characterized in that the long and narrow hatch openings (13) (9) extend over almost the entire height of said hat. Dispositif d'évacuation des eaux pluviales selon la revendication 2, caractérisé en ce que la partie supérieure du chapeau (9) est pourvue de larges ouvertures radiales (17, 16, 14) disposées selon trois couronnes concentriques. Rainwater evacuation device according to claim 2, characterized in that the part upper hat (9) has large openings radial (17, 16, 14) arranged in three crowns concentric. Dispositif d'évacuation des eaux pluviales selon la revendication 4, caractérisé en ce que la surface totale des ouvertures (13, 17, 16, 14) du chapeau (9) du garde-grève (8) est très supérieure à la surface de la section de l'orifice d'entrée (6) du tuyau d'évacuation (2).Rainwater evacuation device according to claim 4, characterized in that the surface total of the openings (13, 17, 16, 14) of the cap (9) of the strike guard (8) is much larger than the surface of the pipe inlet section (6) evacuation (2). Dispositif d'évacuation des eaux pluviales selon la revendication 1, caractérisé en ce que le corps (10)) du garde-grève (8) est muni, dans sa partie supérieure et sur toute sa périphérie, d'ouvertures verticales (18, 19) à peu près rectangulaires.Rainwater evacuation device according to claim 1, characterized in that the body (10)) of the strike guard (8) is provided in its upper part and on its entire periphery, from vertical openings (18, 19) to little almost rectangular. Dispositif d'évacuation des eaux pluviales selon la revendication 6, caractérisé en ce que les ouvertures verticales (18, 19) à peu près rectangulaires sont réalisées sur deux niveaux suivant deux lignes circonférentielles parallèles.Rainwater evacuation device according to claim 6, characterized in that the openings approximately rectangular verticals (18, 19) are carried out on two levels along two lines circumferential parallel. Dispositif d'évacuation des eaux pluviales selon les revendications 4, 6 et 7, caractérisé en ce que chacune des ouvertures verticales (18) à peu près rectangulaires du niveau le plus élevé débouchent vers le haut sur chacune des ouvertures (14) radiales de l'une des couronnes concentriques du chapeau (9), plus particulièrement sur celle de plus grand diamètre.Rainwater evacuation device according to claims 4, 6 and 7, characterized in that each roughly rectangular vertical openings (18) of the highest level open up on each radial openings (14) of one of the crowns concentric of the cap (9), more particularly on that of larger diameter. Dispositif d'évacuation des eaux pluviales selon la revendication 8, caractérisé en ce que les ouvertures verticales (18) du niveau le plus élevé déterminent la hauteur maximale d'eau retenue sur le toit (T).Rainwater evacuation device according to claim 8, characterized in that the openings vertical (18) of the highest level determine the maximum height of water retained on the roof (T). Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications 6 à 9, caractérisé en ce qu'un axe médian (B-B') qui traverse deux ouvertures verticales (19) à peu près rectangulaires diamétralement opposées du niveau le plus bas est dans le plan (P) de la toiture (T) . Rainwater evacuation device according to any one of claims 6 to 9, characterized in that a median axis (B-B ') which crosses two roughly rectangular vertical openings (19) diametrically opposite from the lowest level is in the plan (P) of the roof (T). Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord supérieur (4) du bac collecteur (3) est plus bas que le plan (P) de la toiture (T).Rainwater evacuation device according to any one of the preceding claims, characterized in that the upper edge (4) of the container collector (3) is lower than the plane (P) of the roof (T). Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications précédentes, caractérisé en ce que le bac collecteur (3) est installé dans une cavité (5) de plus grand diamètre que le chapeau (9) du garde-grève (8).Rainwater evacuation device according to any one of the preceding claims, characterized in that the collecting tank (3) is installed in a cavity (5) of larger diameter than the cap (9) of the strike guard (8). Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications précédentes, caractérisé en ce que la cavité (5) a une profondeur telle que, le garde-grève (8) étant installé sur le bac collecteur (3) et reposant sur le fond de ladite cavité (5), la base des ouvertures verticales (18) les plus élevées du corps (10) du garde-grève (8) corresponde au niveau maximum (C-C') de l'eau à retenir sur la toiture (T) .Rainwater evacuation device according to any one of the preceding claims, characterized in that the cavity (5) has such a depth that, the strike guard (8) being installed on the tank collector (3) and resting on the bottom of said cavity (5), the base of the most vertical openings (18) of the body (10) of the strike guard (8) corresponds to the maximum level (C-C ') of the water to be retained on the roof (T). Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications 10 à 13, caractérisé en ce que le rapport de la surface totale des ouvertures verticales (19) les plus basses du corps (10) du garde-grève (8) à la surface de la section de l'orifice d'entrée (6) du tuyau d'évacuation (2) est sensiblement équivalent à 1.Rainwater evacuation device according to any one of claims 10 to 13, characterized in that the ratio of the total area of lowest vertical openings (19) of the body (10) of the strike guard (8) on the surface of the orifice section inlet (6) of the discharge pipe (2) is substantially equivalent to 1. Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications 1 à 14 , caractérisé en ce que l'étanchéité entre le bord supérieur (4) du bac collecteur (3) et le corps (10) du garde-grève (8) est assurée par un joint (11), de préférence un joint torique.Rainwater evacuation device according to any one of claims 1 to 14, characterized in that the seal between the upper edge (4) of the collecting tank (3) and the body (10) of the strike guard (8) is provided by a seal (11), preferably a O-ring. Dispositif d'évacuation des eaux pluviales selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie inférieure du corps (10) du garde-grève (8) présente une légère conicité vers l'intérieur.Rainwater evacuation device according to any one of the preceding claims, characterized in that the lower part of the body (10) of the strike guard (8) has a slight taper towards the interior.
EP00470004A 1999-04-01 2000-03-17 Device for draining rainwater with flow control Expired - Lifetime EP1041217B1 (en)

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FR9904352A FR2791722B1 (en) 1999-04-01 1999-04-01 DEVICE FOR DRAINING RAINWATER WITH REGULATED FLOW
FR9904352 1999-04-01

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EP1041217A1 true EP1041217A1 (en) 2000-10-04
EP1041217B1 EP1041217B1 (en) 2005-05-11

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AT (1) ATE295459T1 (en)
DE (1) DE60019999T2 (en)
DK (1) DK1041217T3 (en)
ES (1) ES2241564T3 (en)
FR (1) FR2791722B1 (en)
PT (1) PT1041217E (en)

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EP1510632A2 (en) * 2003-08-21 2005-03-02 Oekag Wassertechnik (Schweiz) AG Drainage device
CN101115888B (en) * 2005-02-04 2010-09-29 库贝科体系有限公司 Subsurface stormwater system
GB2502515A (en) * 2012-05-11 2013-12-04 Alumasc Group Plc Roof outlet drainage flow restrictor for limiting the speed at which water leaves a flat roof.
CN108222233A (en) * 2018-03-21 2018-06-29 中国建筑股份有限公司 A kind of rain inlet structure and its construction method for being used to build sponge city
US10822785B1 (en) * 2019-06-14 2020-11-03 Steven Berry Filtering drain cover
US11293171B2 (en) * 2019-06-14 2022-04-05 Steven Berry Filtering drain cover
US12044413B2 (en) * 2017-11-22 2024-07-23 Chad Michael Cusimano Cooking appliance with integral drain

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FR2927638A1 (en) 2008-02-15 2009-08-21 Eroa Sarl DEVICE FOR REGULATING THE EVACUATION OF RAW WATER FROM A ROOF SURFACE

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
EP1510632A2 (en) * 2003-08-21 2005-03-02 Oekag Wassertechnik (Schweiz) AG Drainage device
EP1510632A3 (en) * 2003-08-21 2006-04-05 Oekag Wassertechnik (Schweiz) AG Drainage device
CN101115888B (en) * 2005-02-04 2010-09-29 库贝科体系有限公司 Subsurface stormwater system
GB2502515A (en) * 2012-05-11 2013-12-04 Alumasc Group Plc Roof outlet drainage flow restrictor for limiting the speed at which water leaves a flat roof.
GB2502515B (en) * 2012-05-11 2017-10-11 The Alumasc Group Plc Roof outlet flow restrictor
US12044413B2 (en) * 2017-11-22 2024-07-23 Chad Michael Cusimano Cooking appliance with integral drain
CN108222233A (en) * 2018-03-21 2018-06-29 中国建筑股份有限公司 A kind of rain inlet structure and its construction method for being used to build sponge city
CN108222233B (en) * 2018-03-21 2023-12-08 中国建筑股份有限公司 Rain inlet structure for constructing sponge city and construction method thereof
US10822785B1 (en) * 2019-06-14 2020-11-03 Steven Berry Filtering drain cover
US11293171B2 (en) * 2019-06-14 2022-04-05 Steven Berry Filtering drain cover

Also Published As

Publication number Publication date
PT1041217E (en) 2005-08-31
FR2791722A1 (en) 2000-10-06
DE60019999D1 (en) 2005-06-16
DK1041217T3 (en) 2005-08-15
DE60019999T2 (en) 2006-02-23
EP1041217B1 (en) 2005-05-11
ES2241564T3 (en) 2005-11-01
ATE295459T1 (en) 2005-05-15
FR2791722B1 (en) 2001-04-27

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