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Device designed to supply water to aircraft galleys. The device operates simply, autonomously and independently and is provided with a simple structure. The device comprises a system which supplies a quantity of pressurized water from bladder tank of a container, consisting of a receptacle and a cov

Device designed to supply water to aircraft galleys. The device operates simply, autonomously and independently and is provided with a simple structure. The device comprises a system which supplies a quantity of pressurized water from bladder tank of a container, consisting of a receptacle and a cover, and which recovers an equivalent or greater quantity of contaminated water in bladder tank of the same container. In this way, there is no longer an outflow of water. The device requires no electrical or pneumatic pump. The pressure in the water circuit is generated by the spring which is compressed in the container when bladder tank is being filled with drinking water and which acts on the piston, which in turn compresses the bladder tank. The water circuits are reduced to a minimum. The device is installed in a pressurized area and eliminates all frost-related risks.

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1. Hydraulic device designed to supply a liquid and recuperation of said liquid after use in this same device, in a autonomous way characterized in that it comprises a flat or cylindrical container formed by a recipient ( 1 ) and a lid ( 2 ), including two tanks, a superior tank (S) which could be b

1. Hydraulic device designed to supply a liquid and recuperation of said liquid after use in this same device, in a autonomous way characterized in that it comprises a flat or cylindrical container formed by a recipient ( 1 ) and a lid ( 2 ), including two tanks, a superior tank (S) which could be bigger than an inferior tank (I), said tanks being separated by a disc ( 3 ) which compresses the inferior tank (I), a spring ( 4 ) which exerts a pressure (P) on the inferior tank (I) by pressing on the disc ( 3 ), a quick and water tightness mode of connection enabling its connection and disconnection formed by a coupling ( 7 ), a piping ( 10 ), a quick coupling ( 12 ) for distribution and a non return valve ( 6 ) arranged on the lid ( 2 ) for the discharge, and means for replenishment of the inferior tank (I) comprising the coupling ( 7 ) which includes of a non return valve ( 8 ) and an overpressure valve ( 9 ), which can be provided with a regulator pressure ( 11 ). 2. Device, according to claim 1, characterized in that the elements inferior tank (I) superior tank (S) disk ( 3 ) spring ( 4 ) are included in water tight container formed by recipient ( 1 ) and lid ( 2 ). 3. Device according to claim 1, characterized in that the superior tank (S) has a greater capacity than the inferior tank (I). 4. Device according to claim 1, characterized in that the tank inferior (I) contains a supplying liquid ( 5 ) and in that the tank superior (S) contains recuperated liquid ( 14 ). 5. Device according to claim 1, characterized in that the supplying liquid ( 5 ) is stored under pressure (P). 6. Device according to claim 1, characterized in that the disc element ( 3 ) located between the inferior tank ( 1 ) and that the superior tank: (S) exerts the pressure (P) provided by the spring ( 4 ) on the inferior tank (I) in an homogenous way. 7. Device according claim 1, characterized in that whatever the form of the container, spring element ( 4 ) of variable shape exerts a constant pressure on the disc ( 3 ) which, by transmitting it to the tank (I), enables the dispatch of under pressure liquid in the distribution circuit, which pressure diminishes gradually as the liquid is distributed ( 5 ). 8. Device according to claim 1, characterized in that the inferior tank (I) which is made of an elastic substance, which is tight, and which is balloon like shaped, is fixed up at the level of the bladder through a passage situated in the inferior part of the container (container 1 ). 9. Device according to claim 1, characterized in that the coupling ( 7 ) links the inferior tank (I), through its bladder and the passage ( 1 ) to the distribution piping ( 10 ) to the over pressure valve ( 9 ) and to the non return coupling ( 8 ). 10. Device according to claim 1, characterized in that the circuit of distribution, constituted of a distribution sluice, a pressure regulator and a piping allows a regular flow when the tap is opened. 11. Device according to claim 1, characterized in that the recuperation of used or added liquid, is done by gravity through evacuation ducts leading to the hose ( 13 ) inserted in the orifice of the lid ( 2 ), in the superior tank (S), by increasing the volume, which takes the place of the expulsed volume from the inferior tank (I). 12. Device according to claim 1, characterized in that the lid ( 2 ) has a form and a structure including of an orifice in which is connected the hose ( 13 ), a support where a valve is fixed up ( 6 ) and a quick lock system on the body ( 1 ) providing access to different elements of the container. 13. Device according to claim 1, characterized in that the non return valve ( 6 ) sealing the orifice of the lid ( 2 ) has a pointer which enables its opening and its closure the pointer enabling the liquid ( 14 ) to penetrate into the tank (S), being pushed by the hose during connection thereof with the lid, and enables the emptying of the superior tank (S), when the container is detached, being pushed by the far end of the receiving tank after turnover. 14. Device according to claim 1, characterized in that the body ( 1 ) has an orifice in its inferior part, through which the bladder (I) is fixed, and a neck in its superior part to provide a support to put into position the tank (S) and a lock means system with the lid ( 2 ). 15. Device according to claim 1, characterized in that the replenishment of the inferior tank (I) is done by connecting to the coupling ( 8 ) a source of liquid under a pressure superior to (P), which replenishment is attained when the over pressurized valve ( 7 ) opens up to let surplus liquid slip out.