Refrigeration – Refrigerant or coolant – storer or handler – Envelope type
Reexamination Certificate
2000-03-06
2001-04-24
Doerrler, William (Department: 3744)
Refrigeration
Refrigerant or coolant, storer or handler
Envelope type
C062S371000, C062S048300
Reexamination Certificate
active
06220051
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a compact rapid chilling system and a method for reserving cold, and more particularly to a compact rapid chilling system and a method for reserving cold, in which a liquefied cooling gas is used to realize an efficient transportation and delivery of goods under temperature control of the goods, for example such as: perishable foods such as vegetables, fruits, fishes and shellfishes; ice creams; natural flowers; medical and pharmaceutical products; and, like goods being reserved at low temperatures.
Further, the present invention relates to a bag and a method both for reserving chilled goods, and more particularly to such bag and such method, both of which make easier for a mere consumer to keep at low temperatures the chilled goods such as frozen goods, perishable foods, ice creams and like goods purchased from department stores, supermarkets and like stores, when he takes the goods home.
2. Description of the Related Art
In the short distance transportation of the chilled goods such as fruits, vegetables, dairy products, ice creams, fresh fishes, and like goods being reserved at low temperatures, a cold reserving vehicle (i.e., covered truck or van) with a cargo chamber made of aluminum is mainly used. In such vehicle, the inner surfaces of the cargo chamber are covered with heat insulating walls, so that the interior of the cargo chamber is cooled by means of dry ice or ice of frozen water. On the other hand, in transportation to great distances, or in transportion of frozen fishes, frozen meat and like frozen goods, it is necessary to keep the interior of the cargo chamber at predetermined temperatures. Consequently, in the cold reserving vehicle, a refrigerating unit is mounted on the roof of its driver's cab, or in the front upper portion of its cargo chamber. Such refrigerating unit is driven by either the vehicle's own motor or another motor independent thereof.
The vehicle having its cargo chamber cooled by means of dry ice or ice of frozen water is poor in cooling capacity, while being hard to control the temperature of its cargo chamber. In this type of vehicle, since it is hard to keep the temperature of its cargo chamber within a desired range of temperatures, the vehicle is considerably limited in the extent of its goods being transported and also in the extent of distances to which the goods are tansported.
On the other hand, the vehicle provided with a mechanical refrigerating unit suffers from a considerable weight of such refrigerating unit, a considerable space required for such refrigerating unit, and its running costs. Further, when the door of the cargo chamber is frequently opened and closed in loading and unloading the goods, it is very hard to control the temperature of the cargo chamber.
As described above, in the conventional types of transportion and delivery of the chilled goods to be reserved at low temperatures, there are so many problems which, generally speaking, make the transportation efficiency poor.
SUMMARY OF THE INVENTION
Consequently, it is an object of the present invention to provide a compact rapid chilling system and a method for reserving cold, in which the system is easy in operation, free from any problems as to its weight and its installation space, capable of controlling the temperature of the cargo chamber as required, and capable of economically and very efficiently transporting and delivering the chilled goods being reserved at low temperatures.
In taking the chilled goods such as ice creams home, only dry ice is attached to the ice creams. Consequently, it is necessary to purchase this type of chilled goods in the end of shopping and get home without making any side trip. In this case, as for perishable foods such as sashimi (i.e., very fresh fish eaten raw) and the like, it is inevitable for such perishable foods to be subjected to room temperatures for a short period of time, and, therefore inevitable for the thus warmed foods to lose their freshness, particularly in warm and hot seasons.
Consequently, it is another object of the present invention to provide a cold reserving method and a cold reserving bag, which are capable of keeping the purchased chilled goods such as frozen goods and the like at low temperatures for several hours.
According to a first aspect of the present invention, the above objects of the present invention are accomplished by providing:
A compact rapid chilling system comprising:
a liquefied-gas cylinder filled with a liquefied gas;
a cylinder holder for holding the liquefied-gas cylinder; and
a control box mounted on the cylinder holder, the control box being provided with a nozzle for issuing a jet of the liquefied gas through an electromagnetic valve, the liquefied gas being supplied from the liquefied-gas cylinder, the control box being further provided with a control switch for controlling the jet.
Further, the above objects of the present invention are accomplished by providing:
A cold reserving method comprising the steps of:
providing a liquefied-gas supply space in an upper portion of a cold-reserving container;
supplying a liquefied gas into the upper portion of the cold-reserving container to produce carbon dioxide snow therein; and
compressing the carbon dioxide snow.
In addition, the above objects of the present invention are accomplished by providing:
A cold reserving method for reserving chilled goods at low temperatures, comprising the steps of:
supplying a liquefied gas into a container containing the goods, which a mere consumer purchased, so that carbon dioxide snow is produced in the container, whereby the interior of the container is cooled.
Further, the above objects of the present invention are accomplished by providing:
A cold reserving bag comprising:
a liquefied-gas supply space into which a liquefied gas is supplied; and
a chilled-goods storage space, which is constructed of the liquefied-gas supply space or of another space adjacent to the liquefied-gas supply space.
REFERENCES:
patent: 1696138 (1928-12-01), Day et al.
patent: 3283530 (1966-11-01), Bayne et al.
patent: 3714793 (1973-02-01), Eigenbrod
patent: 3727651 (1973-04-01), Biever
patent: 4194369 (1980-03-01), Faust et al.
patent: 5105627 (1992-04-01), Kurita
patent: 5148679 (1992-09-01), Eve
patent: 5511379 (1996-04-01), Gibot et al.
patent: 5657642 (1997-08-01), Reznikov et al.
patent: 5918478 (1999-07-01), Bostic et al.
Browdy and Neimark
Cool Pack System Corp.
Doerrler William
LandOfFree
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