Convoluted neck tube for cryogenic storage vessels

Details Convoluted neck tube for cryogenic storage vessels Convoluted neck tube for cryogenic storage vessels

1997-05-09

2000-02-29

Capossela, Ronald

Refrigeration

Storage of solidified or liquified gas

62 511, F17C 100

Patent

active

060294566

ABSTRACT:
A convoluted or multiple-pass neck tube joins inner and outer elements of a vacuum-jacketed vessel. The additional length of the convoluted neck tube creates an increased distance for heat to conduct from the outer to the inner vessel. As such, a convoluted neck tube can be substitute in place of a straight neck tube or a bellows neck tube to reduce heat gain into the inner vessel. An additional benefit achieved by the convoluted neck tube is greater flexibility of the neck tube, thus yielding more stress resistance.

REFERENCES:
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patent: 3066222 (1962-11-01), Poorman et al.
patent: 3097084 (1963-07-01), Putman
patent: 3119238 (1964-01-01), Chamberlain et al.
patent: 3190081 (1965-06-01), Pytryga
patent: 3306058 (1967-02-01), Keilin
patent: 3611746 (1971-10-01), Marsing et al.
patent: 3688514 (1972-09-01), Prost
patent: 4218892 (1980-08-01), Stephens

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