WO2001096674A2 - Vacuum flush system with temporary-retention waste water tank - Google Patents

Vacuum flush system with temporary-retention waste water tank Download PDF

Info

Publication number
WO2001096674A2
WO2001096674A2 PCT/ES2001/000237 ES0100237W WO0196674A2 WO 2001096674 A2 WO2001096674 A2 WO 2001096674A2 ES 0100237 W ES0100237 W ES 0100237W WO 0196674 A2 WO0196674 A2 WO 0196674A2
Authority
WO
WIPO (PCT)
Prior art keywords
tank
evacuation system
water tank
waste water
temporary
Prior art date
Application number
PCT/ES2001/000237
Other languages
Spanish (es)
French (fr)
Other versions
WO2001096674A3 (en
Inventor
Miguel De Sagarra Conde
Original Assignee
Tecnicas Modulares E Industriales, S.A.
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 Tecnicas Modulares E Industriales, S.A. filed Critical Tecnicas Modulares E Industriales, S.A.
Priority to EP01945352A priority Critical patent/EP1291468A2/en
Publication of WO2001096674A2 publication Critical patent/WO2001096674A2/en
Publication of WO2001096674A3 publication Critical patent/WO2001096674A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D35/00—Sanitation
    • B61D35/005—Toilet facilities
    • B61D35/007—Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices

Definitions

  • the present invention relates to a vacuum evacuation system with temporary retention sewage tank for railroad cars, of the type comprising a wastewater tank to which at least one toilet bowl is connected and having a conduit outlet with a discharge valve.
  • Vacuum evacuation systems for railways involve toilets whose exits are traditionally connected to a wastewater collection tank with a high capacity. This deposit must be emptied periodically, for example when the train reaches one of the end of the route, and this naturally complicates and makes maintenance of the installation more expensive.
  • Some recent systems include an intermediate tank, four or five liters in volume, associated with each toilet, so that a dose of wastewater passes quickly and with a reduced energy expenditure from the cup to the intermediate tank, and at another time this tank intermediate is discharged into a larger tank, which is emptied periodically.
  • This design improves system efficiency, thanks to a lower consumption is required to empty the contents of the cup in the intermediate tank, but it does not eliminate the aforementioned drawbacks associated with the maintenance, volume and weight of the system.
  • the objective of the present invention is to solve the aforementioned drawbacks, developing a vacuum evacuation system that does not require maintenance and occupies a reduced space.
  • the vacuum evacuation system is characterized by the fact that said tank is placed under the floor of the railroad car and by the fact that said exit duct is open internally towards the track , the discharge valve being connected to a control module.
  • the wastewater tank can be emptied automatically when an uninhabited area crosses the train, thus eliminating the need for maintenance operations related to emptying the tank.
  • the size and weight of the deposit can be reduced.
  • the reservoir is substantially cylindrical and is placed vertically under the floor of the car, the outlet conduit being connected at its bottom.
  • the emptying of a tank with these characteristics can be done by gravity.
  • the reservoir has an associated level detector; in this way the emptying can be activated both by after a certain number of operating cycles, such as when a certain level of wastewater is reached, thus avoiding excessive tank filling.
  • the tank advantageously has a volume of between five and twenty liters; In a preferred embodiment, it has a volume of approximately ten liters.
  • the system consists essentially of a toilet bowl 1, a wastewater tank 2 to which the outlet of the bowl 1 is connected through a cut-off valve 3 and a conduit 4, a pneumatic assembly 5 that includes solenoid valves to command the different organs of the system and an ejector to make the vacuum in the tank 2, and a control module 6.
  • the tank 2 is mounted below the floor P of the car and has an outlet duct 7 with a discharge valve 8, governed by the control module 6 as will be explained later.
  • the outlet duct 7 is open internally, so that the wastewater discharged from the reservoir 2 falls into the path.
  • a level 9 detector is also associated with the tank, whose signal is supplied to the control module 6.
  • the tank 2 can have a capacity of about ten liters, although this data is not limiting; In any case, the volume of the tank 2 must be adequate to accommodate at least some wastewater discharge units of the cup 1.
  • the pneumatic assembly 5 and the control module 6 have connections (generally not shown) with the different pneumatic and electrical organs of the system.
  • the ejector (not shown) of the pneumatic assembly 5 is connected through a conduit 10 to the reservoir 2, in order to cause a depression therein in a synchronized manner with the opening of the shut-off valve 3 and with the discharge of water in the cup 1, all with the objective that a waste water unit passes from the cup 1 to the tank 2.
  • the discharge valve 8 of the tank is controlled by one of the solenoid valves of the pneumatic assembly 5, which in turn is governed by the control module as will be described below.
  • the contents of the deposit are emptied into the path when conditions are favorable, that is, outside inhabited nuclei.
  • the control module 6 governs the discharge of the tank by opening the discharge valve 8 when, having completed a predetermined number of cycles of discharge of the cup, or having reached a certain level in the tank (indicated by the level detector 9), the train runs at a speed greater than a predetermined threshold value, for example 40 km / h. This guarantees that the train is in an uninhabited area, and also, thanks to the speed of the train, it makes the Unloading is done along a relatively long stretch of road, minimizing its impact.
  • the tank of the system of the invention can have a relatively small volume and take up little space, and at the same time does not require periodic intervention for emptying.
  • the emptying of the tank can be simply caused by gravity or by simultaneously inducing a partial pressure in the tank itself through a suitable connection (not shown in the figures) with an element of the pneumatic assembly.
  • the operating parameters of the unloading for example the number of cycles from which the unloading is carried out or the aforementioned threshold speed, will depend on the characteristics of the system and the area in which the train runs, and, preferably, they will be programmable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

Said system comprises a waste water tank (2) to which at least one toilet bowl (1) is connected, and at least one outlet duct (7) with a flush valve (8). Said deposit (2) is located beneath the floor (P) of the railroad wagon. Said outlet duct (7) is open on the lower part thereof facing the track. The flush valve (8) is connected to a control module (6). The system does not require maintenance and takes up little space.

Description

SISTEMA DE EVACUACIÓN POR VACÍO CON DEPÓSITO DE AGUAS RESIDUALES DE RETENCIÓN TEMPORAL VACUUM EVACUATION SYSTEM WITH TEMPORARY RETENTION WASTEWATER TANK
La presente invención se refiere a un sistema de evacuación por vacio con depósito de aguas residuales de retención temporal para vagones de ferrocarril, del tipo que comprende un depósito de aguas residuales al cual está conectada por lo menos una taza de inodoro y que presenta un conducto de salida con una válvula de descarga.The present invention relates to a vacuum evacuation system with temporary retention sewage tank for railroad cars, of the type comprising a wastewater tank to which at least one toilet bowl is connected and having a conduit outlet with a discharge valve.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
Los sistemas de evacuación por vacio para ferrocarriles comportan inodoros cuyas salidas tradicionalmente están conectadas a un depósito de recogida de las aguas residuales con una capacidad elevada. Este depósito se debe vaciar periódicamente, por ejemplo cuando el tren alcanza uno de los finales de recorrido, y esto naturalmente complica y encarece el mantenimiento de la instalación.Vacuum evacuation systems for railways involve toilets whose exits are traditionally connected to a wastewater collection tank with a high capacity. This deposit must be emptied periodically, for example when the train reaches one of the end of the route, and this naturally complicates and makes maintenance of the installation more expensive.
Además, hay que tener en cuenta que en los sistemas diseñados para ferrocarriles siempre es preferible evitar volúmenes y pesos elevados, como los implicados por un depósito de este tipo. Otro inconveniente de este sistema con depósito general es que requiere que las estaciones tengan un equipo adecuado para su vaciado.In addition, it should be borne in mind that in systems designed for railways it is always preferable to avoid high volumes and weights, such as those implied by such a deposit. Another drawback of this system with general deposit is that it requires stations to have adequate equipment for emptying.
Algunos sistemas recientes incluyen un depósito intermedio, de cuatro o cinco litros de volumen, asociado a cada inodoro, de manera que una dosis de aguas residuales pasa rápidamente y con un gasto energético reducido de la taza al depósito intermedio, y en otro momento este depósito intermedio se descarga en un depósito mayor, que se vacia periódicamente. Este diseño mejora la eficiencia del sistema, gracias a que se requiere un consumo menor para vaciar el contenido de la taza en el depósito intermedio, pero no elimina los inconvenientes citados asociados al mantenimiento, el volumen y el peso del sistema.Some recent systems include an intermediate tank, four or five liters in volume, associated with each toilet, so that a dose of wastewater passes quickly and with a reduced energy expenditure from the cup to the intermediate tank, and at another time this tank intermediate is discharged into a larger tank, which is emptied periodically. This design improves system efficiency, thanks to a lower consumption is required to empty the contents of the cup in the intermediate tank, but it does not eliminate the aforementioned drawbacks associated with the maintenance, volume and weight of the system.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
El objetivo de la presente invención es resolver los inconvenientes mencionados, desarrollando un sistema de evacuación por vacio que no requiera mantenimiento y que ocupe un espacio reducido.The objective of the present invention is to solve the aforementioned drawbacks, developing a vacuum evacuation system that does not require maintenance and occupies a reduced space.
De acuerdo con este objetivo, el sistema de evacuación por vacio según la presente invención se caracteriza por el hecho de que dicho depósito está colocado bajo el piso del vagón de ferrocarril y por el hecho de que dicho conducto de salida está abierto interiormente hacia la via, estando la válvula de descarga conectada a un módulo de control.In accordance with this objective, the vacuum evacuation system according to the present invention is characterized by the fact that said tank is placed under the floor of the railroad car and by the fact that said exit duct is open internally towards the track , the discharge valve being connected to a control module.
Gracias a estas características estructurales, después de un número predeterminado de ciclos de funcionamiento del inodoro el depósito de aguas residuales se puede vaciar automáticamente al atravesar el tren una zona no habitada, eliminando asi la necesidad de operaciones de mantenimiento relacionadas con el vaciado del depósito. Además, el tamaño y peso del depósito pueden ser reducidos .Thanks to these structural characteristics, after a predetermined number of toilet operation cycles, the wastewater tank can be emptied automatically when an uninhabited area crosses the train, thus eliminating the need for maintenance operations related to emptying the tank. In addition, the size and weight of the deposit can be reduced.
Preferiblemente, el depósito es substancialmente cilindrico y está colocado verticalmente bajo el piso del vagón, estando el conducto de salida conectado en su parte inferior.Preferably, the reservoir is substantially cylindrical and is placed vertically under the floor of the car, the outlet conduit being connected at its bottom.
El vaciado de un depósito con estas características puede realizarse por gravedad.The emptying of a tank with these characteristics can be done by gravity.
De acuerdo con una realización preferida de la invención, el depósito tiene asociado un detector de nivel; de este modo se puede activar el vaciado tanto al cabo de un determinado número de ciclos de funcionamiento como al alcanzar un nivel determinado de aguas residuales, evitando asi que se pueda producir un llenado excesivo del depósito . El depósito tiene ventajosamente un volumen de entre cinco y veinte litros; en una realización preferida, tiene un volumen de aproximadamente diez litros.According to a preferred embodiment of the invention, the reservoir has an associated level detector; in this way the emptying can be activated both by after a certain number of operating cycles, such as when a certain level of wastewater is reached, thus avoiding excessive tank filling. The tank advantageously has a volume of between five and twenty liters; In a preferred embodiment, it has a volume of approximately ten liters.
BREVE DESCRIPCIÓN DE LOS DIBUJOSBRIEF DESCRIPTION OF THE DRAWINGS
Para mayor comprensión de cuanto se ha expuesto se acompañan unos dibujos en los que, esquemáticamente y sólo a titulo de ejemplo no limitativo, se representa un caso práctico de realización. En dichos dibujos, la figura única repres.enta un esquema de un sistema de evacuación por vacio de acuerdo con una realización de la invención, montado en un vagón de ferrocarril.For a better understanding of how much has been exposed, some drawings are attached in which, schematically and only by way of non-limiting example, a practical case of realization is represented. In said drawings, the single figure represents a scheme of a vacuum evacuation system according to an embodiment of the invention, mounted on a railroad car.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERIDADESCRIPTION OF A PREFERRED EMBODIMENT
El sistema consta esencialmente de una taza de inodoro 1, un depósito de aguas residuales 2 al cual está conectada la salida de la taza 1 a través de una válvula de corte 3 y un conducto 4, un conjunto neumático 5 que incluye electroválvulas para comandar los diferentes órganos del sistema y un eyector para hacer el vacio en el depósito 2, y un módulo de control 6.The system consists essentially of a toilet bowl 1, a wastewater tank 2 to which the outlet of the bowl 1 is connected through a cut-off valve 3 and a conduit 4, a pneumatic assembly 5 that includes solenoid valves to command the different organs of the system and an ejector to make the vacuum in the tank 2, and a control module 6.
De acuerdo con una particularidad de la invención, el depósito 2 está montado debajo del piso P del vagón y presenta en su parte inferior un conducto de salida 7 con una válvula de descarga 8, gobernada por el módulo de control 6 como se explicará más adelante. El conducto de salida 7 queda abierto interiormente, de modo que las aguas residuales descargadas del depósito 2 caen a la via. Asociado al depósito también está previsto un detector de nivel 9, cuya señal se suministra al módulo de control 6.According to a particular feature of the invention, the tank 2 is mounted below the floor P of the car and has an outlet duct 7 with a discharge valve 8, governed by the control module 6 as will be explained later. . The outlet duct 7 is open internally, so that the wastewater discharged from the reservoir 2 falls into the path. A level 9 detector is also associated with the tank, whose signal is supplied to the control module 6.
El depósito 2 puede tener una capacidad de unos diez litros, aunque este dato no es limitativo; en cualquier caso, el volumen del depósito 2 debe ser adecuado para alojar al menos algunas unidades de descarga de aguas residuales de la taza 1.The tank 2 can have a capacity of about ten liters, although this data is not limiting; In any case, the volume of the tank 2 must be adequate to accommodate at least some wastewater discharge units of the cup 1.
El conjunto neumático 5 y el módulo de control 6 presentan conexiones (en general no representadas) con los diferentes órganos neumáticos y eléctricos del sistema.The pneumatic assembly 5 and the control module 6 have connections (generally not shown) with the different pneumatic and electrical organs of the system.
En particular, por un lado, el eyector (no representado) del conjunto neumático 5 está conectado a través de un conducto 10 al depósito 2, a fin de provocar una depresión en el mismo de manera sincronizada con la apertura de la válvula de corte 3 y con la descarga de agua en la taza 1, todo ello con el objetivo de que una unidad de aguas residuales pase de la taza 1 al depósito 2. Por otro lado, la válvula de descarga 8 del depósito está controlada por una de las electroválvulas del conjunto neumático 5, que a su vez es gobernada por el módulo de control como se describirá a continuación.In particular, on the one hand, the ejector (not shown) of the pneumatic assembly 5 is connected through a conduit 10 to the reservoir 2, in order to cause a depression therein in a synchronized manner with the opening of the shut-off valve 3 and with the discharge of water in the cup 1, all with the objective that a waste water unit passes from the cup 1 to the tank 2. On the other hand, the discharge valve 8 of the tank is controlled by one of the solenoid valves of the pneumatic assembly 5, which in turn is governed by the control module as will be described below.
De acuerdo con la invención, el contenido del depósito se vacia hacia la via cuando las condiciones son propicias, es decir, fuera de núcleos habitados. Para ello, el módulo de control 6 gobierna la descarga del depósito abriendo la válvula de descarga 8 cuando, habiéndose completado un número predeterminado de ciclos de descarga de la taza, o habiéndose alcanzado un cierto nivel en el depósito (indicado por el detector de nivel 9) , el tren circula a una velocidad superior a un valor umbral predeterminado, por ejemplo 40 km/h. Esto garantiza que el tren se encuentra en una zona no habitada, y además, gracias a la velocidad del tren, hace que la descarga se realice a lo largo de un tramo de via relativamente largo, minimizando su impacto.According to the invention, the contents of the deposit are emptied into the path when conditions are favorable, that is, outside inhabited nuclei. For this, the control module 6 governs the discharge of the tank by opening the discharge valve 8 when, having completed a predetermined number of cycles of discharge of the cup, or having reached a certain level in the tank (indicated by the level detector 9), the train runs at a speed greater than a predetermined threshold value, for example 40 km / h. This guarantees that the train is in an uninhabited area, and also, thanks to the speed of the train, it makes the Unloading is done along a relatively long stretch of road, minimizing its impact.
Gracias a estas características, el depósito del sistema de la invención puede tener un volumen relativamente reducido y ocupar poco espacio, y al mismo tiempo no requiere una intervención periódica para su vaciado.Thanks to these characteristics, the tank of the system of the invention can have a relatively small volume and take up little space, and at the same time does not require periodic intervention for emptying.
Al abrirse la válvula de descarga 8, el vaciado del depósito puede producirse simplemente por gravedad o bien induciendo simultáneamente una presión parcial en el propio depósito a través de una conexión adecuada (no representada en las figuras) con un elemento del conjunto neumático.When the discharge valve 8 is opened, the emptying of the tank can be simply caused by gravity or by simultaneously inducing a partial pressure in the tank itself through a suitable connection (not shown in the figures) with an element of the pneumatic assembly.
A pesar de que se ha descrito y representado una realización concreta de la presente invención, es evidente que el experto en la materia podrá introducir variantes y modificaciones, o substituir los detalles por otros técnicamente equivalentes, sin apartarse del ámbito de protección definido por las reivindicaciones adjuntas. Por ejemplo, aunque se ha representado un depósito aproximadamente cilindrico y colocado verticalmente, las características geométricas y de disposición podrían variar. Asimismo, un mismo depósito puede servir para más de una taza, dependiendo de su volumen y de la disposición de los inodoros en el vagón.Although a specific embodiment of the present invention has been described and represented, it is clear that the person skilled in the art may introduce variants and modifications, or substitute the details for other technically equivalent ones, without departing from the scope of protection defined by the claims. attached. For example, although an approximately cylindrical and vertically placed deposit has been represented, the geometric and arrangement characteristics may vary. Likewise, the same tank can be used for more than one cup, depending on its volume and the disposition of the toilets in the car.
Por otro lado, los parámetros de funcionamiento de la descarga, por ejemplo el número de ciclos a partir de los cuales se efectúa la descarga o la velocidad umbral citada, dependerán de las características del sistema y de la zona en la cual circula el tren, y, preferiblemente, serán progra ables . On the other hand, the operating parameters of the unloading, for example the number of cycles from which the unloading is carried out or the aforementioned threshold speed, will depend on the characteristics of the system and the area in which the train runs, and, preferably, they will be programmable.

Claims

REIVINDICACIONES
1. Sistema de evacuación por vacio con depósito de aguas residuales de retención temporal para vagones de ferrocarril, que comprende un depósito (2) de aguas residuales al cual está conectada por lo menos una taza de inodoro (1) y que presenta un conducto de salida (7) con una válvula de descarga (8), caracterizado por el hecho de que dicho depósito (2) está colocado bajo el piso (P) del vagón de ferrocarril y por el hecho de que dicho conducto de salida (7) está abierto inferiormente hacia la via, estando la válvula de descarga (8) conectada a un módulo de control ( 6) .1. Vacuum evacuation system with temporary retention sewage tank for railroad cars, comprising a wastewater tank (2) to which at least one toilet bowl (1) is connected and which has a duct outlet (7) with a discharge valve (8), characterized by the fact that said tank (2) is placed under the floor (P) of the railroad car and by the fact that said outlet duct (7) is opened inferiorly towards the track, the discharge valve (8) being connected to a control module (6).
2. Sistema de evacuación según la reivindicación 1, caracterizado por el hecho de que dicho depósito (2) es substancialmente cilindrico y está colocado verticalmente bajo el piso (P) del vagón, estando el conducto de salida (7) conectado en su parte inferior.2. Evacuation system according to claim 1, characterized in that said tank (2) is substantially cylindrical and is placed vertically under the floor (P) of the car, the outlet duct (7) being connected in its lower part .
3. Sistema de evacuación según las reivindicaciones 1 ó 2, caracterizado por el hecho de que el depósito (2) tiene asociado un detector de nivel (9) .3. Evacuation system according to claims 1 or 2, characterized in that the tank (2) has an associated level detector (9).
4. Sistema de evacuación según cualquiera de las reivindicaciones anteriores, caracterizado por el hecho de que el depósito (2) tiene un volumen de entre cinco y veinte litros.4. Evacuation system according to any of the preceding claims, characterized in that the tank (2) has a volume of between five and twenty liters.
5. Sistema de evacuación según la reivindicación 4, caracterizado por el hecho de que el depósito (2) tiene un volumen de aproximadamente diez litros. 5. Evacuation system according to claim 4, characterized in that the tank (2) has a volume of approximately ten liters.
PCT/ES2001/000237 2000-06-12 2001-06-08 Vacuum flush system with temporary-retention waste water tank WO2001096674A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01945352A EP1291468A2 (en) 2000-06-12 2001-06-08 Vacuum flush system with temporary-retention waste water tank

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200001569U ES1046526Y (en) 2000-06-12 2000-06-12 VACUUM EVACUATION SYSTEM WITH WASTEWATER RESIDUAL WATER TANK.
ESU200001569 2000-06-12

Publications (2)

Publication Number Publication Date
WO2001096674A2 true WO2001096674A2 (en) 2001-12-20
WO2001096674A3 WO2001096674A3 (en) 2002-04-11

Family

ID=8494002

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2001/000237 WO2001096674A2 (en) 2000-06-12 2001-06-08 Vacuum flush system with temporary-retention waste water tank

Country Status (4)

Country Link
EP (1) EP1291468A2 (en)
CN (1) CN1383410A (en)
ES (1) ES1046526Y (en)
WO (1) WO2001096674A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA016970B1 (en) * 2009-09-15 2012-08-30 Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" The locking device for holding tank pipes
CN106460380A (en) * 2014-04-10 2017-02-22 埃瓦克有限公司 Pneumatic compact vacuum toilet

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100467320C (en) * 2005-07-07 2009-03-11 浙江工业大学 Sanitation device for train carriage toilet
IT1397586B1 (en) * 2009-12-21 2013-01-16 Gen Vacuum S R L SYSTEM AND METHOD FOR THE DISCHARGE OF LIQUAM FROM VEHICLES.
DE202011002009U1 (en) 2011-01-27 2012-04-30 Hugo Vogelsang Maschinenbau Gmbh Absaugkupplung
DE102012223242A1 (en) 2012-12-14 2014-06-18 Siemens Aktiengesellschaft Rail vehicle with pressure shock-protected gray water pipe
CN106080635A (en) * 2016-06-30 2016-11-09 中铁伟业（宁波）轨道交通装备有限公司 A kind of gas-liquid-solid separation device
CN107472278B (en) * 2017-08-08 2018-03-23 何莉 A kind of automatic pollution discharge method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1501150A (en) * 1923-03-31 1924-07-15 Ebb Warren Toilet for passenger cars
US1536823A (en) * 1920-05-08 1925-05-05 Dobson Albert Undercar waste bowl
US1604456A (en) * 1925-08-31 1926-10-26 Abraham L Levy Railroad toilet
US2613186A (en) * 1952-10-07 Cleaning composition
DE19523702A1 (en) * 1995-06-29 1997-01-02 Guenther Buehler Toilet for railway passenger carriage
EP0869880A1 (en) * 1996-01-19 1998-10-14 ABB Daimler-Benz Transportation Denmark A/S Sanitary cell

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613186A (en) * 1952-10-07 Cleaning composition
US1536823A (en) * 1920-05-08 1925-05-05 Dobson Albert Undercar waste bowl
US1501150A (en) * 1923-03-31 1924-07-15 Ebb Warren Toilet for passenger cars
US1604456A (en) * 1925-08-31 1926-10-26 Abraham L Levy Railroad toilet
DE19523702A1 (en) * 1995-06-29 1997-01-02 Guenther Buehler Toilet for railway passenger carriage
EP0869880A1 (en) * 1996-01-19 1998-10-14 ABB Daimler-Benz Transportation Denmark A/S Sanitary cell

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA016970B1 (en) * 2009-09-15 2012-08-30 Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" The locking device for holding tank pipes
EA016970B8 (en) * 2009-09-15 2012-10-30 Ооо Нпц "Экспресс" The locking device for holding tank pipes
CN106460380A (en) * 2014-04-10 2017-02-22 埃瓦克有限公司 Pneumatic compact vacuum toilet
CN106460380B (en) * 2014-04-10 2020-06-05 埃瓦克有限公司 Pneumatic compact vacuum toilet

Also Published As

Publication number Publication date
WO2001096674A3 (en) 2002-04-11
CN1383410A (en) 2002-12-04
ES1046526U (en) 2001-01-01
EP1291468A2 (en) 2003-03-12
ES1046526Y (en) 2001-06-01

Similar Documents

Publication Publication Date Title
ES2265308T3 (en) VACUUM DELAY SYSTEM.
WO2001096674A2 (en) Vacuum flush system with temporary-retention waste water tank
ES2342721T3 (en) PROCEDURE AND APPLIANCE TO TRANSPORT MATERIAL.
ES2347809T3 (en) PROCEDURE AND DEVICE FOR DOSAGE AND FOR PNEUMATIC TRANSPORTATION OF FLUIDITY SCALE FLUID MATERIAL.
US3946448A (en) Apparatus for disinfection and chemical purification of toilet bowls
ES2542876T3 (en) Procedure to transport waste
ES2175769T5 (en) SAFETY POWER SUPPLY DEVICE FOR DOUBLE HYDRAULIC CIRCUIT.
JPS6234578B2 (en)
EP0446504A1 (en) Vacuum toilet system
CN101287946B (en) Distributed gas storage
ES2367043T3 (en) DEVICE FOR CONTROLLING THE SPEED OF PNEUMATIC TRANSPORT, APPLIANCE AND METHOD.
US20190040617A1 (en) Toilet Arrangement
ES2315962T3 (en) CONDENSED DRAIN TRAY WITH A FLOAT VALVE.
CN206439459U (en) The self-closing check valve of gravity
US6206647B1 (en) Waste water disposal system
ES2781952T3 (en) Sanitary installation for a vehicle
RU52794U1 (en) TOILET VEHICLE SYSTEM
US525104A (en) Water-closet for railway-cars
ES2276759T3 (en) DEVICE FOR DOMESTIC USE OF RAIN WATER.
ES2258957T3 (en) VEHICLE TO TRANSPORT MATERIAL IN THE FORM OF POWDER, GRANULAR OR IN THE FORM OF GRANULES.
CN214306549U (en) Safety protection system for instrument air source
CN218507088U (en) Multifunctional bulk grain distribution buffer bin system
JP2763553B2 (en) Toilet equipment for weightless space
ES2245535B1 (en) Collection system for urban waste has PLC center that controls shifting valves to separate desired fractions of waste before unloading waste into containers
DK169146B1 (en) Device for controlling valves in loading lines in ships, for example

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): CA CN US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

WWE Wipo information: entry into national phase

Ref document number: 2001945352

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 01801674X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): CA CN US

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

WWP Wipo information: published in national office

Ref document number: 2001945352

Country of ref document: EP