Long hold time cryogens dewar

Details Long hold time cryogens dewar Long hold time cryogens dewar

1987-10-09

1989-01-10

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

62514R, F17C 100

Patent

active

047964324

ABSTRACT:
A liquid cryogen dewar is constructed in which two or more liquid cryogen chambers are suspended within a case wherein the innermost cryogens have a higher boiling, or sublimation, temperature than the cryogen in the next outermost chamber. The chambers may contain liquid helium, liquid nitrogen and solid CO.sub.2 proceeding from the innermost to the outermost chamber. Superconducting electronic circuitry such as SQUID devices may be connected to the outer case of the liquid helium cryogen chamber. An isothermal shield is also suspended outside the helium chamber. The elements of the dewar are supported by glass epoxy rods and polyester cords of low thermal conductivity. A fill and exhaust port is provided which communicates with fill and exhaust tubes that are heat sunk to various locations of the rods and the Dacron cords.

REFERENCES:
patent: 2532708 (1950-12-01), Goddard
patent: 2643022 (1953-06-01), Cornell
patent: 2863297 (1958-12-01), Johnston
patent: 3119238 (1964-01-01), Chamberlain et al.
patent: 3314773 (1967-04-01), Deiness
patent: 3325999 (1967-06-01), Schroeder, Jr.
patent: 3358472 (1967-12-01), Klipping
patent: 3364687 (1968-01-01), Kolm
patent: 3374638 (1968-03-01), Basile et al.
patent: 4212169 (1980-07-01), Kneip, Jr.
patent: 4481778 (1984-11-01), Reinker et al.
patent: 4606194 (1986-08-01), Pirtle et al.
patent: 4613816 (1986-09-01), Zeamer
patent: 4625229 (1986-11-01), Maier
patent: 4674289 (1987-06-01), Andonian
Sisler, Harry H. and Davidson, Arthur W., General Chemistry A Systematic Approach, The Macmillan Company, 1949, p. 391.

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