Liquid cryogen delivery system

Details Liquid cryogen delivery system Liquid cryogen delivery system

1980-04-17

1981-10-27

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

F17C 702

Patent

active

042966108

ABSTRACT:
Apparatus and process for delivering small controlled quantities of a liquid cryogen to a use point in an intermittent manner comprising an off-period in which no liquid is desired at the use point and followed by an on-period in which liquid is delivered to the use point essentially free of vapor.

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patent: 3802213 (1974-04-01), Ooka
patent: 4010623 (1977-03-01), Kaschak
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