WO2009063519A4

WO2009063519A4 - Bottle with cap which keeps the liquid contained in it effervescent and fresh even after partial consumption of the liquid

Info

Publication number: WO2009063519A4
Application number: PCT/IT2008/000662
Authority: WO
Inventors: Virgilio Cavalet; Remo Cavalet
Original assignee: Virgilio Cavalet; Remo Cavalet
Priority date: 2007-11-16
Filing date: 2008-10-23
Publication date: 2009-07-23
Also published as: ITBL20070026A1; WO2009063519A1; EP2225165A1; EP2225165B1; ATE525304T1

Abstract

The invention described here is a bottle for the holding of liquids consisting of two layers, one inside the other. The function of the inner layer (13) is to hold the liquid while that of the outer layer (12) is to encompass the former and to resist pressure. The air cavity which is created between the two layers is linked to the outside of the bottle via a fissure which follows the rim of the mouth of the bottle along the edge of the screw threads where the cap is screwed on. The cap used on this bottle has characteristics which enable us to send air into the bottle itself and to direct it into the air cavity between the two layers. Thanks to this system we can raise the level of the liquid in the bottle even after its partial consumption and the pressure previously present in the bottle will thereby return to its original level.The cap is also equipped with a vent pipe (6) which allows the air to escape from the chamber containing the liquid when the tap is closed and air is introduced into the air cavity. The vent pipe adjusts internally to the amount of air required to cover the liquid inside the bottle and is equipped with a double function float valve (18) which allows the air above the liquid to escape from the bottle and which closes when it is reached by the liquid, thus enabling the bottle to compress and the pressure inside the bottle to return to its original level. This raising of the liquid and the pressurisation of the bottle limits the evaporation space of the carbon dioxide present in the liquid and enables us to preserve its effervescence for a longer period. This instrument has been developed using the chemical principle according to which the quantity of gas dissolved, at a given temperature in a given quantity of liquid, is directly proportional to the gas pressure on the surface of the liquid.

Claims

AMENDED CLAIMS received by the International Bureau on 04 May 2009 (04.05.2009)

Cap equipped with float valve for the purpose of closing a bottle or, for exa tuple, a plastic bottle, consisting of two containers one inside the other, allowing for the re-establishment of the original pressure of the fizzy liquid present i n- side the bottle prior to the first opening, even after partial and repeated co n- sumption.

Float valve (Fig. 1 no. 18) situated under the cap (Claim 1) which, when reached by the liquid in the inner container, closes and blocks the out-flowing of air or liquid from the bottle, thus permitting the pressurisation of the bottle and the compression of the fizzy liquid.

Cancelled

Float (Fig. 1 no. 3) inserted into the valve (Claim 2) of the cap (Claim 1), made with a lower specific weight than that of the liquid in the bottle, so that it is raised when it is reached by the liquid, thus closing the float valve.

Fissures (Fig. 1 no. 4) made on the float valve (Claim 2) of the cap (Claim 1), in order to allow air to flow from the inner container out of the bottle.

Fissures (Fig. 1 no. 4) made on the float valve (Claim 2) of the cap (Claim 1) in order to allow the liquid contained in the bottle to come into contact with the float (Claim 6) and thus to raise it.

Cancelled

Fissures (Fig. 1 no. 4) made on the float valve (Claim 2) of the cap (Claim 1) to allow for cleaning and for the removal of any residues of liquid from the valve.

Neck (Fig. 1 no. 19) of the float valve (Claim 2) of the cap (Claim 1) which, as a result of its ergonomic form, when it is reached by the float itself allows for the airtight closure of the valve and the consequent compression of the fizzy liquid.

Disk (Fig. 1 no. 10) with notch (Fig. 1 no. 8) situated inside the cap equipped with float valve (Claim 1), which acts as closure of the inner container (Fig. 3 b no. 13) and creates a flow channel (Fig. 5 no. 2) in order to thus accumulate air inside the cavity (Fig. 5 no. 20) formed by the two containers.

Cancelled

Supports (Fig. 1 no. 9) situated above the notched disk (Claim 12) of the cap with float valve (Claim 1) in order to space out, support, block and reinforce the disk thus allowing air to pass through.

Protuberance with notch (Fig. 1 no. 11), made inside the cap equipped with float valve (Claim 1) on its most external part, i.e. nearest to the screw thread which acts as closure of the external container (Fig. 3 b no. 12), in a size and position which allows it to allow air to escape the air cavity of air (Fig. 4 no. 20) before the inner container is decompressed.

Distancers (Fig. 2 no. 14) placed along the entire circumference of the neck of the bottle (Fig. 2 no. 5) between the outer and inner containers in order to keep the inner container perfectly lined up with the notch (Fig. 1 no. 8) of the disk (Fig. 1 no. 10) (Claim 12) of the cap equipped with float valve (Claim 1) thus allowing for its complete closure.

Distancers (Fig. 2 no. 14) placed along the entire circumference of the neck of the bottle (Fig. 2 no. 5) between the outer and inner containers, in order to a n- chor them together and allow for the calibration of their positions relative to the protuberance (Fig. 1 no. 11) with notch (Claim 16) thereby allowing the complete closure of the cap equipped with float valve (Claim 1) and the planned decompression of the bottle during the opening of the cap.

Distancers (Fig. 2 no. 14) spaced out along the entire circumference of the neck of the bottle (Fig. 2 no. 5), between the outer and inner containers, in order to permit air to pass through the flow channel of the cap equipped with float valve (Claim 1) towards the air cavity (Fig. 4 no. 20) formed by the inner and outer containers.

Airtight one-way air inlet valve (Fig. 1 no. 1) situated on the cap equipped with float valve (Claim 1) the purpose of which is to introduce air or gas into the air cavity in order to compress the inner container, expel the excess air above the liquid via the fissures (Claim 7) of the float valve, close this latter when the liquid reaches it and restore the pressure of the fizzy liquid originally present in the bottle before it was first opened. Airtight one-way air inlet valve (Fig. 1 no. 1) situated on the cap equipped with float valve (Claim 1) the size of which is determined by the pressure present in the bottle prior to the first opening.

The shape of the float (Claim 6), which is not compulsory, must line up with the neck of the float valve (Claim 11) in order to close it.

Airtight one-way air inlet valve (Fig. 1 no. 1) situated on the cap equipped with float valve (Claim 1), designed in order to be opened manually, thereby allo w- ing for the decompression of the air cavity prior to the opening of the cap.

Air cavity formed by the two containers (Fig. 4 no. 20) with the purpose of containing air, gas or any other suitable substance for the inner compression of the bottle using the airtight one-way air inlet valve (Fig. 1 no. 1) (Claim 23) situated on the cap equipped with float valve (Claim 1).

Air cavity formed by the two containers (Fig. 4 no. 20) (Claim 24) with the purpose of compressing the inner container using the air or gas introduced into the air cavity by the one-way valve (Claim 23) thus expelling the excess air above the liquid through the fissures of the float valve (Claim 7).

Air cavity formed by the two containers (Fig. 4 no. 20) (Claim 24) with the purpose of re-pressurising the inner container using the air or gas introduced into the air cavity by the one-way valve (Claim 23), and thereby regaining the pressure previously present in the bottle and in a fizzy liquid prior to the first opening, with the float valve (Claim 2) closed.

Air cavity formed by the two containers (Fig. 4 no. 20) (Claim 24)in order to insulate the liquid contained in the inner container from external temperatures as the air cavity is not a thermal conductor.

Air cavity formed by the two containers (Fig. 4 no. 20) (Claim 24) which, if filled with cold gas, can cool the liquid present in the inner container.

The use of a compressor to introduce air into the air cavity (Fig. 4 no. 20) of the bottle which, using the cap equipped with float valve (Claim 1), restores the original balance of gas pressure inside the bottle blocking the escape of gas at fizzy liquid in the inner container.

The use of a compressor (Claim 29) calibrated in order to block automatically when balance pressure is reached, i.e, the pressure present in the bottle prior to opening, in order to guarantee the client optimal performance of the cap with float valve (Claim 1) The use of a hand pump to introduce air into the air cavity of the bottle (Fig. 4 no. 20) which, using the cap equipped with float valve (Claim 1), restores the original stable equilibrium inside the bottle with limited escape of gas at fizzy liquid in the inner container.

The use of an aerosol spray containing compressed liquid air into the air cavity of the bottle (Fig. 4 no. 20) which, using the cap equipped with float valve (Claim 1), restores the original balance of gas pressure inside the bottle with limited loss of gas at fizzy liquid in the inner container.

The possible use of any instrument or method able to pressurise the air cavity (Claim 24) using the cap equipped with float valve (Claim 1) thereby reinsta t- ing, completely or partially, the original stable equilibrium of the fizzy liquid in the inner container.

The use of materials and forms commonly used in the production of bottles and caps, without radically changing their usual purpose, using the functions of the cap equipped with float valve (Claim 1).

The outer container, which can be a commonly used plastic bottle, for example, used in conjunction with the cap equipped with float valve (Claim 1) must be able to withstand the pressure within it.

The inner container will have a deformable structure capable of adapting itself to the pressures created in it as a result of the cap equipped with float valve (Claim 1) and must be strong enough to contain and conserve fizzy liquids without breaking.

Bottles with double containers used for drink distribution could be sold with a cap not equipped with a valve while, after partial consumption of the fizzy Ii q- uids contained in them, the cap equipped with float valve (Claim 1) could be used and subsequently re-used several times, while the bottle can be thrown away once the drink is finished.

Cap equipped with float valve (Claim 1) which can be equipped with a safety valve calibrated in order to prevent an excess of pressure inside the bottle.