Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Patent
1987-01-29
1988-09-20
Bennet, Henry A.
Refrigeration
Storage of solidified or liquified gas
Liquified gas transferred as liquid
62 50, F17C 702
Patent
active
047716088
ABSTRACT:
A flow visualization system usable for clean rooms to determine the flow conditions that exist during manufacture, includes a non-contaminating source of a visible stream of a fog comprising water droplets which evaporaate and leave no residue. Steam is generated in a boiler and it passed over an interface with a cryogenic material to form a high density fog generator providing a highly visible fog that is neutrally bouyant and non-contaminating.
REFERENCES:
patent: 2406540 (1946-08-01), Harrington
"Liberty Smoke Guns and Sticks for Air Behavior", Liberty Industries, Inc., Title page, pp. 87, 183, 6/1985.
Liu Benjamin Y. H.
Ramsey James W.
Bennet Henry A.
Regents of the University of Minnesota
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