.~ Concentric, nested conduits with closed and open ends for flow reversal
DEFINITION
Classification: 55/441
(under subclass 434) Apparatus comprising a plurality of coaxial tubular members having different diameters, each surrounding the next smaller, each coaxial tube having a closed end and an open end, and each except the smallest having one closed end across and spaced from the open end of the surrounded tube.
SEE OR SEARCH CLASS
96, Gas Separation: Apparatus,
191, for similar conduits used for eliminating moisture particles from a gas evolved in an apparatus for degassing a liquid.