The present invention refers to a delivering device of a liquid substance for preparing beverages .

In particular, the present invention deals with systems for preparing beverages in which such device is necessary to deliver liquids and to allow mixing such liquids.

Multi-beer apparatuses are known, comprising a plurality of delivering assemblies which are configured to be selectively actuated in a coupled mode, wherein such plurality of delivering assemblies cooperate for quickly producing a higher amount of delivered beverage in a single seat, or in an independent mode in which the plurality of delivering assembles operate independently for producing a fermented beverage delivered in different positions.

The state of the art is given by patents about apparatuses for preparing beverages dealing with mixers for liquids outside a nozzle and cleaning apparatuses for beverage delivering devices.

For example, patent EP2355667B1 refers to an integrated system for delivering beverages comprising a delivering module of one or more ingredients in different containers and a mixer which allows mixing the ingredients in such containers. The delivering module comprises a single delivering nozzle for the plurality of containers. The mixer is connected to a linear slider actuated by a stepped motor through a controller which provides a specific mixing profile for a given beverage.

Patent EP2355667B1, however, does not solve the problem of delivering beverages composed of volatile substances. This problem is instead mentioned in patent US7389943B2 dealing with an apparatus for delivering a volatile substance and comprising: an electro-mechanical distributor to deliver a volatile substance; a cartridge for keeping a plurality of containing tanks for volatile substances to be delivered; and a rotating arm for alternately disengage a tank from the delivering device and engage a following tank.

Patent US7389943B2 refers in general to systems for treating air through the use of volatile substance. For this purpose, patent US7389943B2 can be used as starting point to define the present invention.

Another problem present in systems for preparing beverages is given by the lack of a constructive simplification, though keeping high quality requirement in preparing the beverages. This problem is instead mentioned in patent US4391390A, dealing with devices for mixing and batching chemical substances, completely operated without the use of timed valves or electrically actuated valves, exclusively operating due to pressure differences, obtaining a controlled mixing without the costs and uncertainty of electrically controllable solenoid valves or other timed batching devices.

Documents US-A-5 312 820, US-A-5 927 553 and WO-A1-03/041546 disclose delivering devices according to the preamble of Claim 1.

Object of the present invention is solving the above prior art problems, by providing a delivering device which is able to suck vapours to allow mixing such liquids, by increasing the quality of a beverage through a mixing process which is free from volatile substances.

A further object of the present invention is providing a delivering device which allows simplifying the construction and the operating logics of a system for preparing beverages by doing without solenoid valves and timed devices.

The above and other objects and advantages of the invention, as will appear from the following description, are obtained with a device for delivering a liquid substance for preparing beverages as claimed in claim 1. Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims.

It is intended that all enclosed claims are an integral part of the present description.

It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements and parts with equivalent functionality) could be made to what is described, without departing from the scope of the invention as appears from the enclosed claims.

The present invention will be better described by some preferred embodiments thereof, provided as a non-limiting example, with reference to the enclosed drawings, in which:

Figures 1 and 2 respectively show a perspective view and a top view of a preferred embodiment of the delivering device of a liquid substance for preparing beverages according to the present invention;

Figures 3 and 4 respectively show a perspective view and a top view of some components of the delivering device according to the present invention; and

Figures 5 and 6 respectively show a perspective view and a top view of the components of Figures 3 and 4 partially disassembled.

Therefore, with reference to Figures 1 and 2, it is possible to note that a delivering device 100 of a liquid substance for preparing beverages according to the present invention comprises at least one nozzle 101 adapted to be placed, in a sequence, next to at least one container of a battery 200 of containers to allow outwards pouring a dose of the liquid substance, in a pre- established amount and mixed with other ingredients of the beverages.

Advantageously, such delivering device 100 of a liquid substance for preparing beverages comprises at least one extracting device 110 of vapours of the liquid substance released in a space between the battery 200 of containers and the nozzle 101.

With reference to Figures 5 and 6, it is possible to note that the extracting device 110 comprises capturing means 111 and collecting means 112 of vapours of the liquid substance released in a space between the battery 200 of containers and the nozzle 101.

In particular, the delivering device 100 of a liquid substance for preparing beverages comprises at least one trolley 120 sliding along guiding means 130 and dragged with transmission means 140 by at least one controlled motor 150.

The trolley 120 allows transporting the nozzle 101 and the extracting device 110 of vapours of the liquid substance.

The extracting device 110 is separable from the trolley 120 to allow cleaning the collecting means 112.

The nozzle 101 is connected through at least one hydraulic flexible tube (not shown) to thermal- hydraulic means 102 comprising at least one boiler for heating the liquid substance to be sent to the nozzle 101.

According to a variation of the delivering device 100, the thermal-hydraulic means 102 are fixed with respect to the trolley 120 and lacking solenoid valves or timed or intercepting elements of the liquid substance.

The extracting device 110 is connected through a hydraulic flexible tube (not shown) to sucking means 103 comprising at least one fan.

According to a further variation of the delivering device 100, the sucking means 103 are fixed with respect to the trolley 120 and lacking solenoid valves or timed or intercepting elements of the liquid substance.

The capturing means 111 comprise at least one hood opened at the base to allow flowing the vapours of the liquid substance towards the collecting means 112. Moreover, the collecting means 112 comprise at least one tank.

The capturing means 111 and the collecting means 112 are separated by at least one wall 113 open on its top and equipped with closing means 114 adapted to allow blocking with respect to the trolley 120.

The guiding means 130 comprise at least one pair of calibrated rods adapted to slide the trolley 120. The transmission means 140 comprise a toothed belt adapted to connect a pinion free of rotating with respect to the trolley 120, with a pinion integral with the shaft of the controlled motor 150.

The delivering device 100 of a liquid substance for preparing beverages of the present invention allows obtaining its pre-set objects.

In fact, the delivering device 100 of a liquid substance for preparing beverages allows delivering a liquid substance, normally water, in a battery of containers, normally suitable mixers, and simultaneously sucking possible vapours.

The delivering device 100 of a liquid substance for preparing beverages comprises a delivering device of the fluid adapted to linearly move or through another type of movement to be able to reach the delivering points of a mixer, through a trolley sliding.

Moreover, the delivering device 100 of a liquid substance for preparing beverages comprises a water inlet device connected to a nozzle and a tube for sucking the vapour adapted to linearly move or through another type of movement to be able to reach the delivering point of the mixer.

A kinematism allows the delivering device of the fluid, the water inlet delivering device and the tube for sucking vapour to reach the delivering points remaining on board the sliding trolley.

The vapour sucking circuit is an extracting device of vapours of the liquid substance connected through a flexible tube from the fan to the vapour taking device integral with the fluid delivering system.

The hydraulic circuit can be simplified with an exchanger/boiler of heat connected through a flexible tube to the delivering point without using solenoid shunting valves downstream of the exchanger/boiler outlet.