Low heat loss liquid helium disconnect attachment and system

Details Low heat loss liquid helium disconnect attachment and system Low heat loss liquid helium disconnect attachment and system

1977-05-03

1978-08-22

Ostrager, Allen M.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

62 45, 62292, 62293, F17C 1304, F17C 1310

Patent

active

041079469

ABSTRACT:
An easily maintainable interface for magnet dewars which includes a low h leakage disconnect fitting that retains the vacuum integrity of both the dewar and the transfer line is provided. The fitting includes a bayonet-type insert having separate coils disposed about a central conduit for cooling or heating the unit depending upon intended use. Liquid helium is introduced axially through the bayonet which is adjustable to a purge position wherein either gaseous or liquid helium may be introduced to clean, heat or cool the unit, or a flow position wherein liquid helium is passed through the bayonet into the supply line.

REFERENCES:
patent: 3152452 (1964-10-01), Bond, Jr.
patent: 3696627 (1972-10-01), Longsworth

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