Fluid handling – Systems – Supply and exhaust
Patent
1977-04-06
1978-12-26
Michalsky, Gerald A.
Fluid handling
Systems
Supply and exhaust
137251, 137528, F16K 1702
Patent
active
041311299
ABSTRACT:
Device for controlling gas flow into vessels without allowing undesired gas, such as outside air, from entering the vessel.
REFERENCES:
patent: 194070 (1877-08-01), Bower
patent: 797255 (1905-08-01), Beers
patent: 989359 (1911-04-01), Hibbitt
patent: 2178250 (1939-10-01), Ernst
patent: 3880179 (1975-04-01), Lenz et al.
Michalsky Gerald A.
Monaco Mario A.
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