EP0031112B1 - Apparatus for dewatering surface soils - Google Patents

Apparatus for dewatering surface soils Download PDF

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Publication number
EP0031112B1
EP0031112B1 EP80107890A EP80107890A EP0031112B1 EP 0031112 B1 EP0031112 B1 EP 0031112B1 EP 80107890 A EP80107890 A EP 80107890A EP 80107890 A EP80107890 A EP 80107890A EP 0031112 B1 EP0031112 B1 EP 0031112B1
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EP
European Patent Office
Prior art keywords
roller
valve
water
suction
pump
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Expired
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EP80107890A
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German (de)
French (fr)
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EP0031112A1 (en
Inventor
Franz Messner
Adolf Unterwaditzer
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Unterwaditzer Adolf
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Unterwaditzer Adolf
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/108—Removing liquids or semi- liquids, e.g. absorbing rain water, sucking-off mud

Definitions

  • the invention relates to a device for dewatering sandy soil, such as tennis courts, sand tracks and.
  • a Sauegelement which has a cylindrical, perforated roller, which is covered with an open-pore foam layer and supported on wheels on the floor, the foam layer, the specific weight of which is preferably 20-40 kg / m 3 , in the support area on the floor is compressed by a predetermined amount and which suction element is connected to a water separator and a pump via a suction line.
  • Such a device is described for example in DE-OS 1 784 110. It consists of a roller, which is mounted on a chassis and can be rolled on the surface to be drained. The roller is connected to a jacket made of absorbent material, which sucks the liquid off the floor.
  • the chassis carries a water tank which is connected on the one hand to a suction pump and on the other hand to a suction nozzle arranged directly on the metal roller. The water in the absorbent jacket of the roller is captured by the suction nozzle and transported into the water tank.
  • the invention was accordingly based on the object of improving a device of the type mentioned at the outset so that rapid drainage is possible in sandy soils, ensuring that no sand is removed from the soil in the process.
  • the inside of the roller shell is provided with axially extending driver blades, which in pairs each project approximately radially from the roller and diverge inward and scoop the water in the roller into a funnel connected to the suction line.
  • This measure does not prevent sand or soil particles from entering the suction line by holding the sand particles to a filter layer, but rather allows the suction opening to be enlarged and thus the suction speed of the air or water to drop below that value, where the sand particles are carried away.
  • the use of a filter layer, the filter opening of which is smaller than the particle sizes, would not be possible because such a filter layer would be installed very quickly.
  • the water is neither directly sucked off nor squeezed out of the foam layer, but the foam layer absorbs water from the bottom until it is completely saturated and thus closes the chamber of the roller.
  • the vacuum created in the chamber water is released into the chamber on the inside of the foam layer. This water is collected by the driver shovels and scooped into the drip pan and fed to the suction line.
  • the suction line can be connected alternately to the bottom connections of two collecting tanks as a water separator via a first valve, the valve connecting the respective free bottom connection to a pump-off line, and that a second one coupled to the first valve Valve alternately connects another connection of the collection tanks with the supply air and exhaust air connection of the air pump.
  • Fig. 1 shows the cross section of an embodiment of the suction element of the device and Fig. 2 is a diagram of the entire device.
  • the suction element 1 consists of a cylindrical roller 6, the jacket of which is provided with through-openings 7 for the water and is covered with an open-pore, elastic foam layer 3.
  • a squeeze roller 9 is arranged on the top of the roller and compresses the foam layer 3.
  • a collecting trough 10 is provided below the pinch roller and communicates with a suction line 2 running coaxially with the roller 6.
  • the inside of the jacket of the cylindrical roller 6 is provided with axially extending driver blades 11, which are arranged in pairs that diverge radially inwards.
  • the roller 6 is also supported on the floor by way of impellers 8 arranged on both sides, so that the foam layer in the contact area on the floor is compressed by a predetermined amount.
  • the Roller 6 can be used for drainage in any direction by means of the handle 12.
  • the diameter of the roller is greater than approximately 300 mm.
  • favorable values for the thickness of the foam layer are about 40 mm, while the pressure in the contact area on the floor should be about 15 mm.
  • the specific weight of the foam is advantageously about 20-40 kg / m 3 .
  • the squeeze roller 9 is not primarily used to squeeze water into the inside of the roller 6, but above all to exert such a slight squeezing effect that water runs freely over the outer jacket of the roller 6 or the foam layer 3 to continuously free them of any grains of sand that may adhere to them.
  • FIG. 2 shows a diagram of the device according to the invention, in which the suction element 1 is connected via a suction line 2 to a pump device 14, which enables a continuous drainage of large floor areas.
  • This pump device can be designed as a mobile, mobile device. However, it is also possible to arrange the pump device 14 in a stationary manner and to lay suction lines on the places to be drained, which could then be coupled to the suction elements 1.
  • the pump device 14 has two collecting tanks 18 and 19 as water separators. Each of the collecting tanks is provided with its own connection 16 and 17 and can be switched alternately to the suction line 2 and to a pumping hose 20 via a multi-way valve 15. The collection tanks 18 and 19 can be connected alternately to the supply air and exhaust air connection of an air pump 24 via a second multi-way valve 21.
  • the two valves 15 and 21 are actuated by a time control device 23. In operation, the time control device 23 controls the two valves 15 and 21 into the position shown for a predetermined time, so that the suction line 2 is connected to the bottom connection 16 of the water tank 18. On the other hand, this water tank 18 is connected to the suction connection of the air pump 24.
  • the water contained in the air flowing through the suction line 2 is deposited in the collecting tank 18.
  • the pressure connection of the air pump 24 is connected to the water tank 19, while the bottom connection 17 of this water tank is connected to the pumping line 20 via the valve 15.
  • the time control device 23 switches over the two valves 15 and 21, so that the collecting tank 19 is now filled with water while the collecting tank 18 is emptied.
  • the pump device 14 according to the invention can therefore find its end with relatively small water tanks.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Filtration Of Liquid (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Entwässern von sandigen Bodenflächen, wie Tennisplätzen, Sandbahnen u. dgl., mit einem Sauegelement, das eine zylinderförmige, perforierte Walze aufweist, die mit einer offenporigen Schaumstoffschichte überzogen und über Räder am Boden abgestützt ist, wobei die Schaumstoffschichte, deren spezifisches Gewicht vorzugsweise 20-40 kg/m3 beträgt, im Auflagebereich am Boden um ein vorbestimmtes Mass komprimiert ist und welches Saugelement über eine Saugleitung mit einem Wasserabscheider und einer Pumpe verbunden ist.The invention relates to a device for dewatering sandy soil, such as tennis courts, sand tracks and. Like., With a Sauegelement, which has a cylindrical, perforated roller, which is covered with an open-pore foam layer and supported on wheels on the floor, the foam layer, the specific weight of which is preferably 20-40 kg / m 3 , in the support area on the floor is compressed by a predetermined amount and which suction element is connected to a water separator and a pump via a suction line.

Eine solche Vorrichtung ist beispielsweise in der DE-OS 1 784 110 beschrieben. Sie besteht aus einer Walze, welche an einem Fahrgestell montiert ist und auf der zu entwässernden Fläche abgerollt werden kann. Die Walze ist mit einem Mantel aus saugfähigem Material verbunden, welches die Flüssigkeit vom Boden absaugt. Das Fahrgestell trägt einen Wassertank , welcher einerseits mit einer Saugpumpe und andererrseits mit einer unmittelbar an der Metallwalze angeordneten Ansaugdüse verbunden ist. Das Wasser in dem saugfähigen Mantel der Walze wird von der Ansaugdüse erfasst und in den Wassertank befördert.Such a device is described for example in DE-OS 1 784 110. It consists of a roller, which is mounted on a chassis and can be rolled on the surface to be drained. The roller is connected to a jacket made of absorbent material, which sucks the liquid off the floor. The chassis carries a water tank which is connected on the one hand to a suction pump and on the other hand to a suction nozzle arranged directly on the metal roller. The water in the absorbent jacket of the roller is captured by the suction nozzle and transported into the water tank.

Bei einer derartigen Vorrichtung kann jedoch vorkommen, dass beispielsweise bei sandigen Bodenflächen mit dem Wasser auch Bodenbestandteile von der Ansaugdüse erfasst und in den Wassertank befördert werden. Es kann auch zu einem Verstopfen der Ansaugdüse kommen.With such a device, however, it can happen that, for example in the case of sandy bottom surfaces, soil components are also taken up by the suction nozzle with the water and conveyed into the water tank. The suction nozzle may also become blocked.

Für die Entwässerung von sandigen Bodenflächen ist es auch bekannt geworden, mit einem Schwamm bezogene Walzen zu verwenden, wobei das vom Schaum aufgesaugte Wasser von einer bezogen zur Laufrichtung an der Hinterseite der Walze angeordneten Quetschrolle in eine Wanne ausgedrückt wird. Auch hier zeigt sich jedoch, dass der auf der Oberfläche der Schaumrolle anhaftende, vom Boden abgenommene Sand mit in die Auffangwanne befördert wird. Dies ist insbesondere deshalb ein gravierender Nachteil, weil eben an jenen Oberflächenbereichen des Bodens, an denen Wasserpfützen aufgrund von Vertiefungen liegen bleiben, bei der Entwässerung stets weitere Sandschichten entfernt werden.For the drainage of sandy floor surfaces, it has also become known to use rollers covered with a sponge, the water absorbed by the foam being expressed into a tub by a squeeze roller arranged at the rear of the roller in relation to the direction of travel. Here too, however, it can be seen that the sand adhering to the surface of the foam roller and removed from the floor is also conveyed into the collecting trough. This is a serious disadvantage in particular because it is precisely on those surface areas of the floor where puddles of water remain due to depressions that more layers of sand are always removed during drainage.

Der Erfindung lag demgemäss die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Gattung dahingehend zu verbessern, dass bei sandigen Böden eine rasche Entwässerung möglich ist, wobei gewährleistet ist, dass dabei kein Sand vom Boden abgetragen wird.The invention was accordingly based on the object of improving a device of the type mentioned at the outset so that rapid drainage is possible in sandy soils, ensuring that no sand is removed from the soil in the process.

Erfindungsgemäss ist hierzu vorgesehen, dass die Innenseite des Walzenmantels mit axial verlaufenden Mitnehmerschaufeln versehen ist, die jeweils paarweise in etwa radial von der Walze abstehen und nach innen auseinander streben und das in der Waize befindliche Wasser in einen mit der Saugleitung verbundenen Trichter schaufeln.According to the invention, it is provided for this that the inside of the roller shell is provided with axially extending driver blades, which in pairs each project approximately radially from the roller and diverge inward and scoop the water in the roller into a funnel connected to the suction line.

Diese Massnahme verhindert das Eindringen von Sand bzw. Bodenpartikeln in die Saugleitung nun nicht etwa dadurch, dass die Sandpartikel an einer Filterschicht festgehalten werden, sondern sie ermöglicht eine Vergrösserung der Saugöffnung und damit eine Absenkung der Ansauggeschwindigkeit der Luft bzw. des Wassers unter jenen Wert, bei dem die Sandpartikel mitgerissen werden. Der Einsatz einer Filterschicht, deren Filteröffnung kleiner als die Partikelgrössen sind, wäre ja schon deshalb nicht möglich, da eine solche Filterschicht sehr rasch verlegt werden würde.This measure does not prevent sand or soil particles from entering the suction line by holding the sand particles to a filter layer, but rather allows the suction opening to be enlarged and thus the suction speed of the air or water to drop below that value, where the sand particles are carried away. The use of a filter layer, the filter opening of which is smaller than the particle sizes, would not be possible because such a filter layer would be installed very quickly.

Bei der erfindungsgemässen Vorrichtung wird das Wasser aus der Schaumstoffschichte weder direkt abgesaugt noch ausgequetscht, sondern die Schaumstoffschichte nimmt so lange Wasser vom Boden auf, bis sie vollständig durchtränk ist und somit die Kammer der Walze abschliesst. Durch das dadurch in der Kammer entstehende Vakuum wird Wasser an der Innenseite der Schaumstoffschichte in die Kammer abgegeben. Dieses Wasser wird von den Mitnehmerschaufeln aufgefangen und von diesen in die Auffangwanne geschöpft und der Saugleitung zugeführt.In the device according to the invention, the water is neither directly sucked off nor squeezed out of the foam layer, but the foam layer absorbs water from the bottom until it is completely saturated and thus closes the chamber of the roller. As a result of the vacuum created in the chamber, water is released into the chamber on the inside of the foam layer. This water is collected by the driver shovels and scooped into the drip pan and fed to the suction line.

Um einen kontinuierlichen Betrieb zu gewährleisten, ist es von Vorteil, wenn die Saugleitung über ein erstes Ventil wechselweise mit den Bodenanschlüssen zweier Sammeltanks als Wasserabscheiderverbindbarist, wobei das Ventil den jeweils freien Bodenanschluss mit einer Abpumpleitung verbindet, und dass ein mit dem ersten Ventil gekoppeltes, zweites Ventil je einen weiteren Anschluss der Sammeltanks wechselweise mit dem Zuluft- und Abluftanschluss der Luftpumpe verbindet.In order to ensure continuous operation, it is advantageous if the suction line can be connected alternately to the bottom connections of two collecting tanks as a water separator via a first valve, the valve connecting the respective free bottom connection to a pump-off line, and that a second one coupled to the first valve Valve alternately connects another connection of the collection tanks with the supply air and exhaust air connection of the air pump.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert.The invention is explained in more detail below on the basis of exemplary embodiments.

Die Fig. 1 zeigt den Querschnitt eines Ausführungsbeispieles des Saugelementes der Vorrichtung und die Fig. 2 ein Schema der gesamten Vorrichtung.Fig. 1 shows the cross section of an embodiment of the suction element of the device and Fig. 2 is a diagram of the entire device.

Das Saugelement 1 besteht aus einer zylinderförmigen Walze 6, deren Mantel mit Durchtrittsöffnungen 7 für das Wasser versehen und miteiner offenporigen, elastischen Schaumstoffschichte 3 überzogen ist. An der Oberseite der Walze ist eine Quetschrolle 9 angeordnet, welche die Schaumstoffschichte 3 komprimiert. Im inneren der Walze 6 ist unterhalb der Quetschrolle eine Auffangwanne 10 vorgesehen, welche mit einer koaxial zur Walze 6 verlaufenden Saugleitung 2 kommuniziert. Weiters ist die Innenseite des Mantels der zylinderförmigen Walze 6 mit axial verlaufenden Mitnehmerschaufeln 11 versehen, welche jeweils paarweise radial nach innen auseinanderstrebend angeordnet sind. Wie in der Fig. 2 ersichtlich, stützt sich die Walze 6 weiters über beidseitig angeordnete Laufräder 8 am Boden ab, so dass die Schaumstoffschichte imAuffagebereich am Boden um ein vorbestimmtes Mass komprimiert ist.The suction element 1 consists of a cylindrical roller 6, the jacket of which is provided with through-openings 7 for the water and is covered with an open-pore, elastic foam layer 3. A squeeze roller 9 is arranged on the top of the roller and compresses the foam layer 3. In the interior of the roller 6, a collecting trough 10 is provided below the pinch roller and communicates with a suction line 2 running coaxially with the roller 6. Furthermore, the inside of the jacket of the cylindrical roller 6 is provided with axially extending driver blades 11, which are arranged in pairs that diverge radially inwards. As can be seen in FIG. 2, the roller 6 is also supported on the floor by way of impellers 8 arranged on both sides, so that the foam layer in the contact area on the floor is compressed by a predetermined amount.

Während des Betriebes herrscht im Innenraum der Walze 6 aufgrund der Verbindung mit der Saugleitung 2 Unterdruck. Die Walze wird am Boden abgewälzt und das auf demselben befindliche Wasser dringt im Auflagebereich in die Schaumstoffschichte ein.During operation, negative pressure prevails in the interior of the roller 6 due to the connection to the suction line 2. The roller is rolled on the floor and the water on it penetrates into the foam layer in the support area.

Bereits im Auflagebereich oder etwas später in den Innenraum dringendes Wasser wird von den Mitnehmerschaufeln 11 bis über die Auffangwanne 10 gefördert und dort in diese abgegeben. Durch die paarweise Anordnung der Mitnehmerschaufeln kann die Walze 6 mittels des Handgriffes 12 in beliebiger Laufrichtung zur Entwässerung eingesetzt werden.Water penetrating into the interior already in the support area or somewhat later is conveyed by the driving vanes 11 to the collecting trough 10 and discharged into the trough there. Due to the paired arrangement of the driving blades, the Roller 6 can be used for drainage in any direction by means of the handle 12.

Um zu verhindern, dass der Sand beim Entwässern durch Transport auf der Oberfläche der Schamgummischicht 3 verlagert wird, hat es sich als günstig herausgestellt, wenn der Durchmesser der Walze grösser als etwa 300 mm ist. Weiters sind günstige Werte für die Dicke der Schaumstoffschichte etwa 40 mm während die Pressung im Anlagebereich am Boden etwa 15 mm betragen soll. Das spezifische Gewicht des Schaumstoffes beträgt vorteilhaft etwa 20-40 kg/m3.In order to prevent the sand from being displaced by transport on the surface of the pubic rubber layer 3 during dewatering, it has proven to be advantageous if the diameter of the roller is greater than approximately 300 mm. Furthermore, favorable values for the thickness of the foam layer are about 40 mm, while the pressure in the contact area on the floor should be about 15 mm. The specific weight of the foam is advantageously about 20-40 kg / m 3 .

Die Quetschrolle 9 dient nicht in erster Linie dazu, Wasser in das Innere der Walze 6 zu quetschen, sondern vor allem dazu, eine derart leichte Quetschwirkung auszuüben, dass Wasser frei über den Aussenmantel der Wa!ze 6 bzw. der Schaumstoffschichte 3 rinnt, um diese kontinuierlich von eventuell daran haftenden Sandkörnchen zu befreien.The squeeze roller 9 is not primarily used to squeeze water into the inside of the roller 6, but above all to exert such a slight squeezing effect that water runs freely over the outer jacket of the roller 6 or the foam layer 3 to continuously free them of any grains of sand that may adhere to them.

In Fig. 2 ist ein Schema der erfindungsgemässen Vorrichtung dargestellt, bei welchem das Saugelement 1 über eine Saugleitung 2 mit einer Pumpeinrichtung 14 verbunden ist, die eine kontinuierliche Entwässerung von grossen Bodenflächen ermöglicht. Diese Pumpeinrichtung kann dabei als mobiles, fahrbares Gerät ausgebildet sein. Es ist jedoch ebenso möglich, die Pumpeneinrichtung 14 stationär anzuordnen und auf den zu entwässernden Plätzen Saugleitungen zu verlegen, die dann mit den Saugelementen 1 gekuppelt werden könnten.2 shows a diagram of the device according to the invention, in which the suction element 1 is connected via a suction line 2 to a pump device 14, which enables a continuous drainage of large floor areas. This pump device can be designed as a mobile, mobile device. However, it is also possible to arrange the pump device 14 in a stationary manner and to lay suction lines on the places to be drained, which could then be coupled to the suction elements 1.

Die Pumpeinrichtung 14 weist zwei Sammeltanks 18 und 19 als Wasserabscheider auf. Jeder der Sammeltanks ist mit einem eigenen Anschluss 16 und 17 versehen und über ein Mehrwegeventil 15 wechselweise an die Saugleitung 2 und an einen Abpumpschlauch 20 schaltbar. Über ein zweites Mehrwegeventil 21 sind die Sammeltanks 18 und 19 wechselweise mit dem Zuluft- und Abluftanschluss einer Luftpumpe 24 verbindbar. Die beiden Ventile 15 und 21 werden von einer Zeitsteuereinrichtung 23 betätigt. Im Betrieb steuert die Zeitsteuereinrichtung 23 die beiden Ventile 15 und 21 für eine vorbestimmte Zeit in die dargestellte Lage, so dass die Saugleitung 2 mit dem Bodenanschluss 16 des Wassertanks 18 verbunden ist. Dieser Wassertank 18 steht andererseits mit dem Sauganschluss der Luftpumpe 24 in Verbindung. Das in der die Saugleitung 2 durchströmenden Luft enthaltende Wasser wird im Sammeltank 18 abgelagert. Zugleich ist der Druckanschluss der Luftpumpe 24 mit dem Wassertank 19 verbunden, während der Bodenanschluss 17 dieses Wassertanks über das Ventil 15 mit der Abpumpleitung 20 in Verbindung steht. Dadurch wird das im Sammeltank 19 enthaltene Wasser in die Abpumpleitung 20 gedrückt. Nach der vorbestimmten Zeit schaltet die Zeitsteuereinrichtung 23 die beiden Ventile 15 und 21 um, so dass nunmehr der Sammeltank 19 mit Wasser gefüllt wird, während sich der Sammeltank 18 entleert. Die erfindungsgemässe Pumpeinrichtung 14 kann daher mit relativ kleinen Wassertanks das Auslangen finden.The pump device 14 has two collecting tanks 18 and 19 as water separators. Each of the collecting tanks is provided with its own connection 16 and 17 and can be switched alternately to the suction line 2 and to a pumping hose 20 via a multi-way valve 15. The collection tanks 18 and 19 can be connected alternately to the supply air and exhaust air connection of an air pump 24 via a second multi-way valve 21. The two valves 15 and 21 are actuated by a time control device 23. In operation, the time control device 23 controls the two valves 15 and 21 into the position shown for a predetermined time, so that the suction line 2 is connected to the bottom connection 16 of the water tank 18. On the other hand, this water tank 18 is connected to the suction connection of the air pump 24. The water contained in the air flowing through the suction line 2 is deposited in the collecting tank 18. At the same time, the pressure connection of the air pump 24 is connected to the water tank 19, while the bottom connection 17 of this water tank is connected to the pumping line 20 via the valve 15. As a result, the water contained in the collecting tank 19 is pressed into the pumping line 20. After the predetermined time, the time control device 23 switches over the two valves 15 and 21, so that the collecting tank 19 is now filled with water while the collecting tank 18 is emptied. The pump device 14 according to the invention can therefore find its end with relatively small water tanks.

Claims (2)

1. Apparatus for draining sandy ground areas, such as tennis-courts, sand-tracks and the like, comprising a suction element (1) which has a cylindrical perforated roller (6) which is covered with a layer of open-pore foam plastics material and rests on the ground by means of wheels (8), the foam plastics layer (3), whose specific weight is preferably between 20 and 40 kg/m3, being compressed by a preset dimension in the region of contact with the ground, and said suction element (1) being connected to water separating means (18, 19) and a pump (24) by means of a suction pipe (2), characterized in that the inner side of the roller surface is provided with axially extending scoops (11) which are arranged in pairs substantially radially projecting from the roller (6) and diverging towards the inside and scooping the water which is in the roller into a basin (10) connected to the suction pipe.
2. Apparatus according to claim 1, characterized in that the suction pipe (2) is alternately connectable to the bottom fittings (16, 17) of two collecting tanks (18, 19) as water separating means by means of a first valve (15), the valve (15) connecting the free bottom fitting (16, 17) with a discharge pipe (20), and that a second valve (21) coupled to the first valve (15) alternately connects one further fitting, each, of the collecting tank (18, 19) to the air inlet-and outlet fitting of the air pump (22).
EP80107890A 1979-12-19 1980-12-13 Apparatus for dewatering surface soils Expired EP0031112B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT799879A AT362314B (en) 1979-12-19 1979-12-19 DEVICE FOR DRAINING FLOOR AREAS
AT7998/79 1979-12-19

Publications (2)

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EP0031112A1 EP0031112A1 (en) 1981-07-01
EP0031112B1 true EP0031112B1 (en) 1984-03-07

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EP80107890A Expired EP0031112B1 (en) 1979-12-19 1980-12-13 Apparatus for dewatering surface soils

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US (1) US4386873A (en)
EP (1) EP0031112B1 (en)
AT (1) AT362314B (en)
DE (1) DE3066886D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005017265A1 (en) * 2003-08-15 2005-02-24 Angus Reardon Bailing apparatus

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445247A (en) * 1983-01-07 1984-05-01 Johannessen R L Water collecting device
IE54504B1 (en) * 1983-03-16 1989-10-25 Zestful Holdings Ltd Apparatus for removing water from the ground
IE871128L (en) * 1987-05-06 1988-11-06 X Ab Apparatus for removing water from the ground
US5080517A (en) * 1990-08-07 1992-01-14 Lynn William R Mop assembly for applying clean liquids and removing dirty liquids
US5246650A (en) * 1991-06-03 1993-09-21 Clark Richard C Method of applying aggregate surface finish
US6302621B1 (en) * 1997-08-13 2001-10-16 Obayashi Corporation Segment for intake tunnels
US6152151A (en) * 1999-07-20 2000-11-28 Bolden's Manufacturing, Inc. Device and method for liquid removal from carpet
US6629333B2 (en) 2000-07-20 2003-10-07 Kurt E. Bolden Device and method for liquid removal from carpet
US6952858B2 (en) * 2001-09-27 2005-10-11 Merck Christopher T Water extraction device
US7789090B2 (en) * 2007-02-02 2010-09-07 Hai Minh Tran Fingernail polish removing device
CN112064560A (en) * 2020-08-10 2020-12-11 黄新金 Ponding processing apparatus is used to town road cleanup crew
CN114277722A (en) * 2022-01-25 2022-04-05 中南大学 Tramcar embedded track pavement structure cleaning vehicle

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121690A (en) * 1955-02-15 1956-08-23 Method and apparatus for carrying out coatings, such as paving
US3051973A (en) * 1958-06-12 1962-09-04 Francis G Jacques Absorptive earth-drying apparatus
DE1801753U (en) * 1959-05-19 1959-12-10 Harald Olie ROLLER, IN PARTICULAR FOR TENNIS AND SPORTS FIELDS.
US3038192A (en) * 1959-07-08 1962-06-12 Frank M Mcneill Roller mop
US2996743A (en) * 1959-07-22 1961-08-22 John W Noble Floor mopping apparatus
US3079620A (en) * 1959-08-03 1963-03-05 Carrie E Hunter Mobile device for removing water from playing fields
US3161905A (en) * 1961-01-23 1964-12-22 Dryden Eva Detachable sponge holder with liquidsupply connection means
GB942338A (en) * 1961-03-29 1963-11-20 Forge Craft Ltd Improvements in or relating to moisture collecting apparatus for removing moisture from a surface over which said apparatus is passed
US3351971A (en) * 1964-04-28 1967-11-14 Hocking Richard Alfred Apparatus for removing excess moisture from the ground and other surfaces
DE1964229U (en) * 1967-04-26 1967-07-20 Becorit Ges Wilhelm Beckmann & DEVICE FOR DEHUMIDIFYING FLOOR SURFACES, IN PARTICULAR SPORTS AREAS.
DE1985338U (en) * 1967-12-08 1968-05-16 Werner Dipl Ing Poenitzsch DRYING ROLLER.
DE1784110A1 (en) * 1968-07-08 1971-07-15 Fischer Geb Chevalier Ursula Device for drying surfaces
DE1927237B2 (en) * 1969-05-29 1972-02-10 Alfred Teves Gmbh, 6000 Frankfurt MEASURING SENSORS FOR ANTI-LOCK BRAKING SYSTEMS IN PARTICULAR FOR FORCE VEHICLE BIKES
US3789449A (en) * 1972-06-21 1974-02-05 Scott & Fetzer Co Hard surface floor cleaner
US3950812A (en) * 1974-11-22 1976-04-20 Mohr Harold R Portable wiping machine for wet surfaces
US4133072A (en) * 1977-03-01 1979-01-09 Face Jr Samuel A Device for removing water from large floor surfaces
FR2413509A1 (en) * 1977-12-30 1979-07-27 Taussat Sa Entr Robert Suction device for road surface drying - has air pump to fill and discharging collector tank with valved inlet and outlet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005017265A1 (en) * 2003-08-15 2005-02-24 Angus Reardon Bailing apparatus

Also Published As

Publication number Publication date
ATA799879A (en) 1980-09-15
DE3066886D1 (en) 1984-04-12
AT362314B (en) 1981-04-27
EP0031112A1 (en) 1981-07-01
US4386873A (en) 1983-06-07

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