Cryostat throttle

Refrigeration – Cryogenic treatment of gas or gas mixture – Liquefaction

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F25B 1902

Patent

active

053138015

ABSTRACT:
The throttling sensitivity of a demand flow cryostat may be controlled and stabilized by selectively exposing refrigerant to the surface of a sensor which actuates a refrigerant throttle valve. The sensor is formed of a plastic material such as high density polyethylene which has a high coefficient of thermal contraction.

REFERENCES:
patent: 3320755 (1967-05-01), Jepson et al.
patent: 3728868 (1973-04-01), Longsworth
patent: 4002039 (1977-01-01), Cramer et al.
patent: 4152903 (1979-05-01), Longsworth
patent: 4177650 (1979-12-01), Campbell
patent: 4781033 (1988-11-01), Steyert et al.

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