ES2263678T3 - ISOTHERMAL BAG FOR BOTTLES AND FOOD PRODUCTS. - Google Patents

Abstract

This invention consists in a flexible, very light and pocket-size container, which can keep the temperature of a liquid inside a bottle (4) even. The bag (1) is made by folding a rectangular foil in two and then welding two sides, leaving only one side open through which the bottle (4) or the food is inserted. The foil is made up of thermal-insulation, reflective and waterproof materials. Two holes (2.1, 3.1) having the same dimensions as a bottle neck (4) are located near the open shorter side. An elastic band (8) closes the isothermal bag (1) after rolling it up or folding it up thus making it compact and pocket-size. The bag (1) wraps up the bottle (4) completely but the holes (2.1, 3.1) enable users to drink without opening and closing the bag (1). Its closing device is functional, hygienic and user-friendly.

Description

Isothermal bag for bottles and products food.

The present invention relates to a bag isothermal to keep food temperature constant or drinks.

Prior art

Normally people like to have drinks or food available at a cool temperature, (e.g. water, tea, wine, soda ...), especially when it's hot and not there is no refrigerator nearby, as in the case of the beach, in a tennis court or during long trips.

Currently, there are various systems for keep food and drinks fresh without needing a fridge. Among these systems we can find, thermos, refrigerators portable and thermal containers, which however can bring some inconvenience to users. Thermos they are usually uncomfortable to wear, and are annoying once the Drink is over. The portable refrigerators (which are made from artificial ice) are heavy and uncomfortable to wear. Also, the thermal containers are light but also They are uncomfortable to wear. So, users use refrigerators portable and thermal containers only when they have to transport drinks and food products, and therefore accept the inconveniences related to its dimensions and its weight.

But there are times that it is preferable to have only a fresh drink or some food in a bowl small or cup (e.g., yogurt, ice cream, a sandwich ...), of this mode they don't have to transport any of the mentioned systems previously since they suffer from inconveniences. In this way, the food products and drinks get hot and are little appetizing, especially if they are exposed to the sun.

Several solutions have been developed to Be able to solve this problem. For example, US Patent No. 4,211,091 describes an insulated bag adapted for transport and Food storage but not for bottles. The closure of the Bag is obtained by a closure with tape. Anyway, for perfectly close the bag, the bottles must be completely inside. Consumers need to open and close the bag every time they want to drink, which is uncomfortable and accentuates the temperature change between outside and inside. Apart from that, the claimed bag requires a flexible strap to be able to transport it whether it is full or empty. This belt is held in the bag by an adhesion that can be separated and which is vulnerable to dust and sand, leading to higher production costs and manufacturing problems.

US Patent No. 4,669,632 also describes a bag provided with two gas impermeable films but without any specific opening for bottles.

Another solution is to use bags specific for bottles, such as those described in the US patents No. 403,926 and No. 5,890,809. However, these containers do not completely cover the bottle and that reduces the heat filtration US Patent Nos. 409,450 and 5,804,265 They refer to other bags for bottles, which do not cover the bottles completely, but they have no hole for Drink directly from them. In this case, as in the US Patent No. 4,211,091, users need to open and close the bag every time they want to drink, with the consequent entry of hot air.

US Patent No. Des 392.025 offers a solution quite effective to this problem, since the bag covers the bottle up to the neck, allowing users to open the cap without open the bottle Unfortunately, the bag is closed by a cord and for that reason is vulnerable to dust, sand and others unhygienic conditions, involving a more manufacturing cost high. The same goes for patent NL No. 1001720, which describes a bag that forms a bag according to the preamble of the claim 1 with a cord that completely covers the side with The aforementioned inconveniences.

Another known patent is European Patent No. 0710608 which describes an insulated portable container formed by Multiple and flexible multilayer plastics that insulate heat.

The two layers of the portable part have a pair of fixing flaps in which each one presents an overture central and separated from the handle by a cut. The flaps of fixation are sequentially bent above the mouth of the bottle. But the two fixing flaps have such amplitude and form that do not allow full coverage of the bottle. For him on the contrary, two holes in the longer sides of the bag leave entering hot air, which produces two air spaces, warming the sides of the bottle. What's more, the constant presence The handle is an obstacle while drinking.

Summary of the invention

The objective of the present invention is provide users with a new isothermal bag, which can keep food or drinks at a constant temperature and that do not suffer from the same inconveniences mentioned previously.

These goals are achieved through this bag pocket, which is flexible, isothermal and pocket size according to claim 1 attached. This bag is made folding a rectangular sheet in two, which is then fixed on both sides joined by welding or by any other procedure The final product is a bag with only one opening on the shorter side. The opening is delimited by two flaps, each presenting a hole that is about the same size as the neck of the bottle. The holes are located near the edges of the shorter side open. The edges of each hole can widen and also be reinforced by rings made from materials various welded together. The two holes are approximately coaxial

The bag is about the same size as the bottle, that way, the bag can be rolled up perfectly.

The sheet is formed by three different layers of soft and flexible synthetic materials, which are used in Particular for food products. The outer layer is reflective, the intermediate layer has characteristics Thermal insulation and the inner layer is waterproof and reflective. The sheet may consist of four layers, in which case the outer layer is reflective, the two intermediates present Thermal insulation characteristics and the internal one is waterproof and / or reflective It is also possible to use a sheet with a single layer, which has reflective, waterproof and thermal insulation.

The isothermal bag may have edges rounded, and the underside can be folded.

An elastic band, a cord or edging can be fixed outside the bag, being able to roll or fold before and after being used, so that it can be compressed and pocket size The elastic band, the cord or trim keeps the bag rolled or folded and prevents liquid from spilling out of the bag.

An alternative solution can be offered making a hole in the shorter closed side of the bag, the which is about the same size as the neck of the bottle.

In this case, a kind of closure such as a self-closing ( minigrip ) can be provided between the part below the bottle and the mentioned holes.

The two holes would act as a carry handle the bag.

The bag can also be made joining two rectangular sheets, which are fixed together  on all three sides, that is, the two longest and the most short.

The isothermal bag offers many of the advantages of other cooling systems, without their inconvenience In fact, it is very practical and light, you can come back to use, it is difficult to break and easy to carry.

It's a pocket bag and that's why you can Save anywhere without any problem.

Its weight is extremely light, since all The materials are very light. However, although the materials they are very light, they are very resistant, that way, the bag can be used several times On the other hand, the stock market is very economical and Users can throw it away after a single use.

The holes in the bag can be used also as a handle, so users can carry it with just one finger.

Unlike other thermal bags, this one roll the entire bottle, thereby increasing the insulation thermal. Its holes allow users to drink directly from the bottle without having to open and close it whenever you want drink, thereby reducing heat exchange between the inside and outside of the bag. The closing device is very Easy, practical and hygienic at the same time.

One of the biggest advantages of this bag is the hygiene.

In fact, it is made from materials raincoats which are specifically indicated for your use in food and drink. Condensation (produced when cold bottles come into contact with hot air) is very reduced in this invention, so the bag can avoid mixtures unhygienic by condensation and materials (such as sand, dust, algae ...) located on the surface where the bottle. In this way, users can avoid getting dirty hands or the container in which the isothermal bag is located, such as bags, fanny packs, backpacks, etc. In addition, the bag is You can wash as it is made of waterproof materials.

Brief description of the figures

Other features and advantages of the invention will be revealed in the description of some form of particular embodiment of the bag mentioned above, which are preferred but not mandatory, and provided only to Illustrative title in the accompanying drawings, in which:

- Figure 1 shows a front view of the bag manufactured according to the first embodiment;

- Figure 2 shows a front view of the bag when the first flap surrounds the neck of the bottle and the upper part;

- Figure 3 shows a front view of the bag when both flaps surround the neck and the top of the bottle;

- Figure 4 shows a perspective view of the bottle when completely rolled up;

- Figure 5 shows a front view of the bag manufactured according to a second embodiment;

- Figure 6 shows a front view of the bag manufactured according to a second embodiment with a self closing

Best way to practice the invention

The isothermal bag 1 manufactured according to a first embodiment, is made by folding a sheet rectangular in two along the shorter side, which then It is welded to the two longest sides. The final product it is a bag with only one opening on the second side plus short. The opening is delimited by two flaps 2, 3. Each flap 2, 3 has a hole 2.1, 3.1, the size of which is approximately the same as the neck of a bottle 4. The holes 2.1, 3.1 are located next to edges 2.2, 2.3 of the open side plus short.

The dimensions of bag 1 are approximately the same as those in bottle 4.

The rectangular sheet consists of three different layers of flexible and soft synthetic materials, which they are used in particular for food products, such as PET

The outer layer is reflective, the layer intermediate has thermal insulating characteristics, and the inner layer, It is waterproof and / or reflective.

Thanks to its size, bag 1 is like a box, which completely covers the bottle 4.

Hole 2.1 of the first flap 2 has to match the end of the neck of the bottle 4. The neck of the Bottle 4 is arranged inside hole 2.1. Then the flap 2 folds up to completely cover the top of the bottle 4. Now hole 3.1 of the second flap 3 has to match the end of the neck of the bottle 4. The neck of the Bottle 4 is also placed inside the second hole 3.1. TO then the second flap 3 folds up until it covers completely the first flap 2. Consequently, the part Top of bottle 4 is fully covered by bag 1 and it is still possible to drink from it without opening the flaps 2.3 other time since the neck of the bottle protrudes through holes 2.1, 3.1.

The two flaps 2, 3 cannot be lifted anymore that the edges of the holes 2.1, 3.1 are attached to the neck of the bottle 4.

Isothermal bag 1 manufactured according to the second embodiment, it also has a shorter closed side with another hole 5, which is approximately the same size as the bottle neck 4. In that case, bottle 4 is introduced inside the bag 1 and its neck passes through the hole 5. The two holes 2.1, 3.1 serve as handles to carry bag 1 and the 4 bottle inside it.

In this case, the shortest open side can be provided with a closing device, such as a self-closing 6 located between the bottom of the bottle 4 and the two holes 2.1, 3.1.

Bag 1 is made of very materials lightweight, that way users don't notice the weight of bottle 4. However, the characteristics of the materials allow to maintain the liquid temperature of the bottle 4, even in some extremely hygienic conditions

Once bag 1 has been used it can Roll up, that way it is compact and pocket-sized. He Cord 8 prevents the bag 1 from opening again.

Claims (12)

1. Isothermal bag for bottles and food products that is approximately the same size as a bottle (4); the bag (1) consists of a soft and flexible rectangular sheet; said bag (1) has only one opening on the shortest side to insert the bottle; said bag (1) is made by folding the aforementioned rectangular sheet in two, and then it is fixed on the two sides joined by welding or any other procedure, or is made by joining two rectangular sheets, which are fixed together by the three sides, that is, the longest and shortest sides; said bag (1) is characterized in that it has two holes (2.1, 3.1) that are approximately the same size as the neck of the bottle (4); these holes (2.1, 3.1) being approximately coaxial and passing the neck of the bottle (4) through them when the bag (1) is being used; said holes (2.1, 3.1) are arranged close to the edges (2.2, 3.2) of the opening of the shortest side; said edges (2.2, 3.2) and the longer sides delimit two rectangular areas close to the opening; said holes are arranged in said areas (2.1, 3.1); said rectangular areas act as two flaps (2, 3); when the neck of the bottle (4) passes through said holes (2.1, 3.1) said zones (2, 3) are folded and completely cover the upper part of the bottle (4); the holes (2.1, 3.1) both act to close the bag (1) and carry the bottle (4); the flaps (2, 3) both act as a cover and as a handle: when only one hole (2.1, 3.1) is placed above the neck of the bottle (4) the bottle (4) is already completely covered and the other hole ( 2.1, 3.1) acts as a handle; the edges of each hole (2.1, 3.1) are reinforced by welding; The aforementioned sheet is constituted by one or more layers of synthetic materials that are especially suitable for food products, with heat-insulating, reflective and waterproof characteristics, to maintain the temperature inside the bag (1); an elastic band (8) closes the bag (1) after it has been rolled and folded. 2. Isothermal pocket bag according to claim 1, characterized in that it has a flexible sheet, consisting of three layers of different materials; The outer layer is reflective, the intermediate layer is heat insulating and the inner layer is waterproof and / or reflective. 3. Isothermal pocket bag according to claim 1, characterized in that it has a flexible sheet, which is constituted by four layers; The outer layer is reflective, the intermediate layer has thermal insulating characteristics and the inner layer is waterproof and / or reflective. 4. Isothermal pocket bag according to claim 1, characterized in that the flexible sheet, which is constituted by a single layer with heat-insulating, reflective and waterproof characteristics. 5. Isothermal pocket bag according to claim 1, characterized in that the elastic band (8) is not fixed to the bag (1). 6. Isothermal pocket bag according to claim 1, characterized in that the hole (5) is the same size as the neck of the bottle (4), located on the shorter closed side, with two holes (2.1, 3.1) close to the edges (2.2, 3.2) of the shorter open side. 7. Isothermal pocket bag according to claim 1, characterized in that it has another hole (5) located at the edge of the shorter closed side and whose dimensions are approximately the same as those of the neck of the bottle (4). 8. Isothermal pocket bag according to claim 7, characterized in that it has another hole (5) located at the edge of the shorter closed side and a closing device such as a self-closing (6) located between the bottom of the bottle (4 ) and the two holes (2.1, 3.1); said two holes (2.1, 3.1) acting as handles for carrying the bottle (4). 9. Isothermal pocket bag according to claim 1, characterized in that it has rounded corners, and whose bottom can be folded. 10. Isothermal pocket bag according to claim 1, characterized in that the edges of each hole (2.1, 3.1) are elastic. 11. Isothermal pocket bag according to claim 1, characterized in that the edges of each hole (2.1, 3.1) are reinforced by rings made from different materials. 12. Isothermal pocket bag according to claim 1, characterized in that a cord is fixed outside the isothermal bag (1) to close it after it has been folded and rolled.