DE102018105546A1 - Drinking vessel with cooling element - Google Patents

Abstract

The invention relates to a drinking vessel with a closed chamber (1) in the bottom (7), in which a cold storage medium (2) is arranged.

Description

The invention relates to a drinking vessel with a closed chamber in a bottom, in which a cold storing medium is arranged.

Drinking vessels are of course well known. It is also known to cool drinks in drinking vessels. For example, ice cubes are added to a drink in a drinking vessel. The disadvantage of cooling by ice cubes is that the beverage is thinned in the course of cooling by thawing the ice and the ice cubes are not reusable. Also known reusable ice cubes from a plastic shell with water filling, however, are very complicated to use, since each single cube must be cleaned after use, dried and frozen again. Another disadvantage of the use of ice cubes for cooling drinks is that the ice cubes claim a significant proportion of the filling volume of the drinking vessel, which is no longer available for the drinking liquid in their use.

There are also known bivalve drinking vessels with a circumferential in the lateral outer wall cavity in which already filled drinks cooled by the cold-insulating side wall slowly warm up than in comparable drinking vessels without insulating wall. A disadvantage of this type of cooling is that the drink itself is not cooled, but only its warming is slowed down.

It is also known to use conventional, pre-cooled in the refrigerator or refrigerator drinking vessels for cooling drinks. The disadvantage of using pre-cooled conventional drinking vessels is that the pre-cooled drinking vessel heats up quickly to the ambient temperature.

Object of the present invention is to provide a drinking vessel that causes a prolonged cooling time of the filled beverage, it is easy to use and is reusable several times.

This object is achieved by a drinking vessel with a closed chamber in a soil in which a cold storage medium is arranged dissolved.

The drinking vessel according to the invention has a completely closed chamber in the bottom. The chamber is filled with a medium that can store cold, a so-called coolant or cooling element. Preferably, the medium is a liquid or gel. The chamber is preferably integrally embedded in the wall.

Preferably, between the chamber and a beverage trough in which the beverage is located, only a wall which limits the chamber to the beverage trough provided.

The present invention has recognized that a drinking vessel with integrally incorporated in the drinking vessel material cooling element has particularly advantageous application properties. It is recyclable multiple times, easy to clean, and provides a simple and highly effective cooling option for drinks without having to hold additional coolant.

Preferably, the chamber is partially filled with air and partly with the cold storage medium. The ratio is chosen so that the air is compressed by expansion of the medium by cooling or heating and the chamber still does not break.

It is also conceivable that the chamber is subsequently introduced after forming a beverage trough of the drinking vessel in the beverage trough. An inner wall delimiting the chamber towards the beverage trough can be glued to the inner wall of the beverage trough in a circumferentially liquid-tight manner or otherwise secured. Such training also allows the subsequent installation in an existing drinking vessel.

According to an advantageous embodiment of the invention, the coolant-filled chamber has an extension in the side wall of the drinking vessel. Thereby, the inner surface of the drinking vessel, which is disposed immediately adjacent to the chamber, increased and the cooling effect of the coolant to the drink in the drinking vessel amplified.

According to a further embodiment, the extension of the chamber in the side wall extends at least partially to at most half the height of the side wall. This achieves an increased cooling effect in the lower sidewall region and partially in the upper sidewall region and at the same time provides surface in the upper sidewall region which is not immediately adjacent to the coolant-filled chamber, thereby removing less heat on contact with the user's skin than the lower sidewall region ,

According to a further advantageous embodiment, the extension of the chamber filled with coolant in the side wall of the drinking vessel is annular, so that this annular extension forms a cup shape together with the region of the chamber in the bottom. This will be the used by the side wall provided surface for cooling particularly effective.

According to another advantageous embodiment, the extension of the filled with coolant chamber in the side wall of the drinking vessel on several extensions. Thereby, a visually appealing shape of the coolant-filled chamber can be achieved, and it can side wall areas are provided for gripping the drinking vessel in which no extension of the chamber extends.

According to one embodiment, the coolant in the chamber is surrounded by a shell, which is preferably made of plastic. This makes it particularly easy during the manufacturing process to incorporate the coolant into the drinking vessel. It can be incorporated as filled with coolant pad during the manufacturing process in the molding compound of the drinking vessel.

Conveniently, a vessel wall and / or a vessel bottom are double-walled, and air is trapped between an inner wall and an outer wall. A gap formed between inner wall and outer wall is preferably provided along the entire bottom area of the drinking vessel. The gap can also be formed in the side walls of the drinking vessel and extend at least up to a marked level in the beverage trough.

In particular, in a plastic version of the drinking vessel, the only connection between the inner and outer walls of the opening edge be, which connects circumferentially the inner wall to the outer wall. In this case, then the chamber is conveniently provided in the inner wall at the bottom. The chamber is adjacent the floor outside of the gap.

A layer of air forming in the gap isolates the drink and keeps it cool or warm for longer.

The drinking vessel may be designed according to a variant as a cup without handle. In this variant, the drinking vessel can be stacked particularly easily and, for example, be placed close together for cleaning in dishwashers.

The drinking vessel may be designed according to another embodiment variant as a cup with handle. In this variant, the chamber filled with coolant can run essentially in the entire side wall without the user perceiving the cup as cold when touched on the handle.

According to a particularly preferred embodiment, the drinking vessel is designed as a whiskey glass. In this embodiment, the drinking vessel according to the invention is particularly useful because it causes a long-lasting cooling of the whiskey and whiskey is preferably drunk cool and over a longer period.

The drinking vessel may be made of conventional material such as glass, clay, stoneware or plastic, but preferably of glass. As a result, an easy cleaning of the drinking vessel is possible and visually appealing arrangement of the filled with coolant chamber visible to the viewer.

The cold storage medium may be conventional coolant. It should have the smallest possible coefficient of expansion. In a preferred embodiment, it comprises propylene glycol and water. Such propylene glycol-water mixtures can be cooled down to -10 ° C. According to another embodiment of the invention, the cold storage medium comprises halogenated alkanes, whereby temperatures of -30 ° C can be achieved.

Advantageously, the cold storage medium has a heat capacity which is greater than the heat capacity of the material of the drinking vessel.

Upon melting of the medium, all the heat that is absorbed by the beverage is first supplied as a melting enthalpy of a phase change, without causing a temperature increase. The phase change preferably takes place at temperatures between -5 ° C and 0 ° C in order to achieve a cooling effect of the beverage, but still to keep the drink drinkable and not too cold. Of course, the temperature of the cooled beverage must be above its melting temperature, usually about 0 ° C.

In a further embodiment of the invention, the cold storage medium can also store heat. This makes it an alternative to warming hot drinks such as coffee or tea. For this purpose, the drinking vessel according to the invention with the cold or heat-storing medium in the microwave or in the oven can be warmed up.

In a further preferred embodiment, the coolant may contain dyes. This is when transparent drinking vessel material, such. As glass, a visually appealing design of the glass possible because the colored cooling liquid is visible through the drinking vessel material.

The drinking vessel may be formed as a glass, in particular a whiskey glass, a cup, a cup or else otherwise.

• 1 einen Querschnitt durch ein erfindungsgemäßes Trinkgefäß mit einer ausschließlich in einem Boden angeordneten Kammer für ein Kühlmittel,
• 2 einen Querschnitt durch das erfindungsgemäße Trinkgefäß mit der ringförmig in eine Seitenwand des Trinkgefäßes sich fortsetzenden Kammer für das Kühlmittel,
• 3 eine Seitenansicht des erfindungsgemäßen Trinkgefäßes mit in Form von mehreren Ausläufern in die Seitenwand des Trinkgefäßes sich fortsetzenden Kammer für das Kühlmittel.

The invention will be described with reference to three embodiments in three figures. Showing:

• 1 a cross section through a drinking vessel according to the invention with a chamber arranged exclusively in a bottom for a coolant,
• 2 a cross section through the drinking vessel according to the invention with the annularly in a side wall of the drinking vessel continuing chamber for the coolant,
• 3 a side view of the drinking vessel according to the invention with in the form of several extensions in the side wall of the drinking vessel continuing chamber for the coolant.

1 shows a cross section through a drinking vessel according to the invention. In a ground 7 of the drinking vessel is a chamber 1 arranged, in which the cold storage medium 2 located. The cold storage medium 2 is in this embodiment of a shell 3 surround. The chamber 1 is completely of the material from which the drinking vessel, apart from the chamber 1 exists, surrounded. The chamber 1 is exclusively in the ground in this embodiment 7 arranged the drinking vessel.

In the medium 2 it can be salt water or a gel with a high heat storage coefficient or another medium. The medium 2 When cooling in the freezer compartment of a refrigerator, ie during cooling down to temperatures down to -18 ° C, a phase change from liquid to solid takes place. The size of the chamber 1 is such that the volume change of the medium 2 by the phase change or by the subsequent heating not to a bursting of the chamber 1 leads. Therefore, the chamber 1 not completely with the medium 2 filled, but only to a predetermined part. The remaining part is filled with air when expanding the medium 2 is compressed. When melting the medium 2 the entire heat is first supplied as a melting enthalpy of the phase change, without causing a temperature increase. The phase change preferably occurs at temperatures between -5 ° C and 0 ° C in order to achieve a cooling effect of the beverage, but still to keep the drink drinkable.

2 shows a cross section through another variant of the drinking vessel according to the invention. In this variant, the chamber 1 an extension 5 in a side wall 4 of the drinking vessel, which is annular and about half the height of the side wall 4 of the drinking vessel is enough. Again, the cold storage medium 2 from the shell 3 surrounded, and also here is the chamber 1 completely from the material from which the drinking vessel apart from the chamber 1 exists, surrounded. The annular extension of the chamber 1 in the sidewall 4 forms together with the area of the chamber 1 in the ground 7 a cup shape.

3 shows the side view of another variant of the drinking vessel according to the invention, in which the chamber 1 several extensions 6 in the sidewall 4 of the drinking vessel has.

LIST OF REFERENCE NUMBERS

1

chamber

2

Cold storage medium

3

shell

4

Side wall

5

Extension of the chamber in the side wall

6

Spur of the chamber

7

ground

Claims (13)

Drinking vessel with a closed chamber (1) in a floor (7), in which a cold storing medium (2) is arranged. Drinking vessel after Claim 1 , characterized in that the chamber (1) is partially filled with air and partly with the cold storage medium (2). Drinking vessel after Claim 1 or 2 , characterized in that the cold storage medium (2) has a phase transition solid - liquid in the temperature range between - 8 ° C to 0 ° C, preferably between - 5 ° C to 0 ° C, particularly preferably at 0 ° C. Drinking vessel after Claim 1 . 2 or 3 , characterized in that the chamber (1) has an extension (5) in a side wall (4) of the drinking vessel. Drinking vessel after Claim 4 , characterized in that the extension (5) extends at least partially at most to half the height of the side wall (4) of the drinking vessel. Drinking vessel after one of the Claims 4 or 5 , characterized in that the extension (5) is annular. Drinking vessel after one of the Claims 4 or 5 , characterized in that the extension (5) comprises a plurality of extensions (6). Drinking vessel after one of the Claims 1 to 7 , characterized in that the cold storage medium (2) in the chamber (1) by a sheath (3) is surrounded. Drinking vessel after one of the Claims 1 to 8th , characterized in that the material of the drinking vessel is plastic or glass. Drinking vessel after one of the Claims 1 to 9 , characterized in that the cold storage medium (2) has a specific heat capacity which is greater than a specific heat capacity of the material of the drinking vessel. Drinking vessel after one of the Claims 1 to 10 , characterized in that the side wall (4) and / or the bottom (7) are double-walled and is enclosed in a gap formed between an inner wall and an outer wall of air. Drinking vessel after one of the Claims 11 , characterized in that the chamber (1) is arranged in the inner wall. Drinking vessel after Claim 11 or 12 , characterized in that the gap completely passes through the bottom (7).

Images