HK1059769B - Beverage dispenser - Google Patents

Description

Field of the invention

The invention refers to an apparatus for the automatic drawing out of beverages from bottles wherein the bottles are kept in their normal vertical position.

State of the art

Apparatuses for the automatic drawing out of beverages, in particular bottled beverages, are well known and widely employed. Some of them, wherein the bottles are upside down, allows the drawing by opening a suitable valve which allows the falling by gravity of the liquid, others allow the drawing from bottles kept in they normal vertical position by way of two pipes passing through the bottle cork, an inert gas is insufflated in the bottle through one the above said pipe, so maintaining the bottled liquid under pressure; when the corresponding drawing tap for drawing the liquid is open, the gas under pressure pushes the liquid through the second pipe.

The second method is particularly suitable for those beverages which would suffer from the upside down position of the bottles, for example wines.

Such an apparatus, according to the preamble of claim 1, is known from FR 2 616 767.

However, the apparatuses known up to now present various drawbacks. In fact, they do not allow a complete drawing of the liquid since some drops always remain in the channels or in the drawing tap and, when dried, leave a deposit which goes bad under the action of the air and can pollute the subsequent draught; the liquid while stopping in the pipes can change its taste, moreover the substitution of the empty bottles is rather complicated and it is always possible that the pipes come into contact with the surface on which the bottles rest, collecting bacteria or other pollutants which can alter the taste of the liquid.

Summary of the invention

The present invention refers to an apparatus for the automatic drawing out of liquids from bottles, wherein the bottles are kept in their normal vertical position, comprising a drawing tap, equipped with an electric valve. In the body of such drawing tap suitable channels are present which allow the entry of the inert pushing gas, the drawing of the liquid and the cleaning of the drawing tap after the drawing.

Description of the drawings

• Figure 1 schematically shows a section of an apparatus according to the invention;
• Figure 2 represent, in detail, a section of the drawing tap;
• Figure 3 shows a section of a particular embodiment of the drawing tap.

Detailed description of the invention

The present invention overcomes the above said drawbacks by means of an apparatus as defined in claim 1.

As it is shown in Figure 1 the apparatus has a body 10, on the inferior surface of which is present a lifting means 11.

In the upper part of the body 10, front to the lifting means 11, is placed the drawing tap 12 which is connected to a suitable switch 12' and to the gas and electric circuits (not shown in the figure).

As shown in Figure 2 the drawing tap 12 consists of a body 13, an electric valve 14 (and the corresponding magnet 14') and a tap 15 which can engage with the bottle neck through its conical mouth 15'.

The electric valve 14 is, preferably, a membrane electric valve.

Inside the body 13 of the drawing tap 12 are present:

• a channel 16 permitting the entry into the bottle of the inert gas (connected with the pipe of the gas circuit not shown in the figure);
• a channel 17 wherein flows the drawn liquid, connected on one side to the pipe 18 and to the opposite side to the spout 19.

The channel 17 presents a chamber 20 closed by the piston of the electric valve 14 and a branch 21 which is also connected with the inert gas circuit (not shown in the figure).

The tap 15 can be solidly connected to the body 13 through a chamber 22 or, according to a preferred embodiment of the invention, can be free to move up and down in such chamber 22, in this case a spring 23 is present in the chamber 22 and pushes the tap 15 downwards.

On the external part of the tap 15 a gasket 24 (normally a rubber ring) is present .

According to this second preferred embodiment, the channel 16 at the end which enters into chamber 22 is closed by a needle valve 25. In this case, as it can be seen from Fig. 3, the tap 15, when moving upwards will act on such needle valve 25, allowing the automatic entry of the gas from channel 16 into the bottle.

Through the mouth 15' of the tap 15 passes the pipe 18 (preferably in flexible material) which is connected to the channel 17 and through which the liquid flows from the bottle to the spout 19.

The lifting means 11 can be moved manually, mechanically, electrically or pneumatically (possibly connected to the inert gas circuit) and will lift the bottle until the bottle neck enters the conic mouth 15' of the tap 15 and adheres to the gasket 24.

The upper surface of the lifting means is preferably made of, or covered with, anti-slipping materials.

Suitable gaskets 26 (for example O-Rings) assure the seal of the electric valve and the tap 15 (when in the moving version).

The apparatus obviously comprises the necessary hydraulic and electric circuits, and the inert gas tank, used for the apparatuses already known in the art for the same purposes. The hydraulic circuit connects the gas tank to the drawing tap and possibly to the lifting mechanism of the lifting means 11, and comprises the suitable means (valves, manometers etc.) for controlling and stabilising the gas pressure to the wanted predetermined values, while the electric circuit will activate the electric parts of the apparatus (switchers, electric valve etc).

According to a particular embodiment of the invention the means regulating hydraulic and electric functions (pressure, switching on/off, drawing times, etc.) can be controlled by a suitable software, which can possibly be activated by the user through a personalised magnetic card allowing also the automatic debiting of the draught.

The functioning of the apparatus according to the invention is extremely simple.

The pipe 18 is threaded into the bottle and the bottle is placed on the lifting means 11.

Acting on the lifting means 11 the bottle is lifted until the top of the neck adheres to the gasket 24.

Acting on a suitable switch the gas is loaded into the bottle through the channel 16 bringing the liquid under the desired pressure. If the tap 15 is fitted with the needle valve (as illustrated in Fig. 3) the loading of the gas will take place automatically when the bottle neck pushes on the tap 15.

The apparatus is now ready for the drawing out of the liquid.

The user will switch on the apparatus, for example acting on a suitable switch or by introducing in the suitable inlet a magnetic card (which can be personalised by a code number) and thereafter acting on the suitable switch 12' will open the corresponding electric valve. The gas under pressure contained in the bottle will push the liquid through the pipe 18, the channel 17 and the chamber 22, up to the spout 19 where it will be collected by the user.

Once the predetermined quantity of liquid has been drawn the electric valve will close and, after a short interval of time necessary to permit the flowing of the liquid remaining in channel 17 under the branch 21, a jet of gas is blown in through such branch 21, cleaning perfectly the drops of liquid remaining in the channel 17 and the spout 19.

The apparatus will be ready for a new draught.

Once the bottle is empty the lifting means 11 are lowered and the bottle is unthreaded from the pipe 18 and a new bottle is installed. It is worth considering that during the substitution the pipe 18 hangs in the air and can not come into contact with possible sources of organic or inorganic polluters

Moreover it should also be noted that the whole operation can be performed by the operator with just one hand.

The apparatus according to the invention can obviously house more than one bottle each containing the same or different liquids (for example different vintages of the same wine), in this case the presence of the software will make easier a quick debiting of the costs depending on the liquid drawn.

Claims (9)

1. Apparatus for the automatic drawing out of liquids from bottles, by applying a pressure on the liquid by an inert gas being supplied by an inert gas circuit, wherein the bottles are kept in upright position, the apparatus comprising a first body (10), lifting means (11) which can be moved manually, mechanically, electrically or pneumatically the lifting means being placed at the inferior part of the first body (10), a spout and a drawing tap (12) consisting of a second body (13) characterised in that said drawing tap (12) (15) having a conical mouth (15') and inside said second body (13) are present:

   - a channel (16), permitting the entry of said inert gas into the bottle, being connected to the pipe of the inert gas circuit;

   - a channel (17) connected with its first side to a pipe (18) through which said liquid is drawn out of the bottle and with its second side to the spout (19) and presenting a chamber (20) closed by a piston of an electric valve (14) and a branch (21) being also connected to said inert gas circuit.
2. Apparatus according to claim 1 wherein the tap (15) is solidly connected to the body (13) through a chamber (22).
3. Apparatus according to Claim 1 wherein the tap (15) is free to move up and down in a chamber (22).
4. Apparatus according to Claim 3 wherein in said chamber (22) is present a spring (23) which pushes the tap (15) downwards.
5. Apparatus according to Claim 4 wherein the channel (16), at the end which enters into chamber (22), is closed by a needle valve (25).
6. Apparatus according to claims 1 - 5 wherein the means regulating the hydraulic and electric functions are controlled by a software.
7. Apparatus according to Claims 1 - 6 wherein the activation of the apparatus is performed by introducing a magnetic card in the suitable inlet.
8. Apparatus according to claims 1 - 7 wherein the body (10) houses more than one bottle.
9. Method for drawing liquids from a bottle through the action of an inert gas pushing on the liquid contained in the bottle, wherein an apparatus according to claims 1 - 8 is used.