Refrigeration – Low pressure cold trap process and apparatus
Patent
1983-03-28
1985-02-05
Capossela, Ronald C.
Refrigeration
Low pressure cold trap process and apparatus
220 88B, F17C 702
Patent
active
044971788
ABSTRACT:
A method of preventing the atmosphere from entering a heat-insulating container adapted to temporarily reserve a low-temperature liquefied gas, wherein a dry gas is constantly supplied to the inside of the heat-insulating container when it is in an inoperative state, in order to maintain the inside of the heat-insulating container in a dry gas atmosphere having a pressure slightly higher than the atmospheric pressure. The dry gas is a vaporized gas of a low-temperature liquefied gas of the same kind as the low-temperature liquefied gas to be used. The dry gas is led out in the gas phase from a supply container for supplying the low-temperature liquefied gas to be used, or is a gas obtained by vaporizing a part of the low-temperature liquefied gas to be used, outside the supply container.
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Aoki Nobuyoshi
Hongo Akira
Nakata Issei
Suzuki Toshimitsu
Ueda Hideki
Capossela Ronald C.
Daiwa Can Company, Limited
Nilles James E.
Teisan Kabushiki Kaisha
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