Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Patent
1988-09-19
1989-10-24
Bennet, Henry A.
Refrigeration
Storage of solidified or liquified gas
Liquified gas transferred as liquid
62 521, F17C 02
Patent
active
048753408
ABSTRACT:
A flow visualization system usable for clean rooms to determine the flow conditions that exist during manufacture, includes a frame mounting a source of steam and a liquid cryogen container. Steam is passed over an interface with the cryogenic material providing a highly visible fog that is neutrally buoyant and non-contaminating. The liquid cryogen level in the container is controlled by a float valve system which controls flow from a liquid cryogen tank.
REFERENCES:
patent: 2406540 (1946-08-01), Harrington
Liu Benjamin Y. H.
Ramsey James W.
Bennet Henry A.
Regents of the University of Minnesota
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