Food or edible material: processes – compositions – and products – Potable water or ice compositions or processes of preparing...
Patent
1987-01-16
1989-05-23
Weaver, Sue A.
Food or edible material: processes, compositions, and products
Potable water or ice compositions or processes of preparing...
426396, 426407, 53425, 53440, 215 1C, B65B 302, B65B 5502
Patent
active
048329657
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a bottle which provides an emergency water ration and to a method for its manufacture.
A bottle used an emergency water container or as an emergency water ration is thrown into the water in rescue vessels from an airplane or from a ship and used on rafts and in lifeboats. Such a bottle is subject to high requirements. Packed in a rescue vessel, it must e.g. be adapted to be thrown into the water without damage from a height of at least 36 m, and it must further be resistant particularly to crude oil and salt water, and the content drinking water should have a lifetime of up to 5 years.
There are already known quite a lot of containers for water rations for the above purposes. On rafts or the like water rations are used in form of tin cans, in which the water is sterilized, and the cans are locked after disinfection. The drawback of such containers resides in that due to the influence of sea water the containers are readily subjected to corrosion, so that after a short time they become useless. Another disadvantage resides in that when they are subjected to mechanical action, for example when they are mechanically bumped, their double flanges or soldered seams or joints break open which results in a loss of the water. Also cylindrically shaped cans occupy a relatively large space, which is particularly disadvantageous in rescue vessels which are thrown into the water. However, to avoid such disadvantages, so-called "plastic packs" sometimes have been used. These are small bags made of a foil tube by first filling the tubular body with water and then welding and dividing it into predetermined compartments. Such water-containing and plastic-made packets have a content of about 100 ml. The material used for the tube is preferably polypropylene, and the filled packets are sterilized by exposing them to UV radiation. For sterilizing the water serving as the emergency ration it is also known in the art to use silver nitrate. However, such a disinfectant is often disapproved of, and in some countries only boiled water as an emergency ration is licensed to be used. Such small plastic-made packs which contain a relatively small amount of water have the disadvantage that they are not sufficiently resistant to mechanical influences such as occur when the pack is thrown down from a height of at least 36 m. Usually the packs burst whereby the water flows out.
It is therefore the object of the present invention to provide a bottle useful as an emergency water ration which when packed in a rescue vessel, is resistant to deformations and may be packed in a relatively high packing density. It is another object of the present invention to provide a method of making such a bottle containing boiled, sterilized water.
Thanks to its material and its particular shape the bottle used for housing the emergency water ration according to the present invention is inherently very stable. The highy density polyethylene is particularly suitable for the intended purpose. Aside from a comparatively highy compression and tensile strengths, polyethylene has an excellent stability within the range of atmospheric temperatures. Due to the fact that the bottle is made as a flat body and has an inclined front face including the pouring spout, it is possible to pack a plurality of bottles in a narrow space. The vaulted lower bottom and the arrangement of the feeder, which is displaced to one side of the upper bottom, serves to dampen the energy shock when the bottle hits the water surface after being disposed from a significant height and also prevents the neck of the bottle from being struck. The location of the feeder or pouring spout at one side of the bottle also serves for better handling of the bottle when drinking, so that e.g. in the case of heavy seas, no drinking water is spilled.
Another significant advantage is that the bottle has a locking plug which is also made of high density polyethylene and which has a conically shaped plug for engaging with the neck of the bottle and
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