US PATENT SUBCLASS 165 / 173
.~ With manifold type header or header plate

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

172  DF  SIDE-BY-SIDE TUBULAR STRUCTURES OR TUBE SECTIONS {1}
173.~ With manifold type header or header plate {2}
174  DF  .~.~> With internal flow director
175  DF  .~.~> Inlet and outlet header means {1}

DEFINITION

Classification: 165/173

(under subclass 172) Apparatus in which the tubular elements are interconnected by structure forming a part of a communicating manifold chamber in which fluid flow verges.

SEE OR SEARCH THIS CLASS, SUBCLASS:

153, for a tube manifold connecting side by side tubes in a core type radiator.

158, for encased tube assembly with a manifold formed by a tube sheet and casing section.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers,

512, for a tube sheet specialized for use in a boiler.