US PATENT SUBCLASS 165 / 81
EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS

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

81EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS {1}
82  DF  .~> Relieving or absorbing means supports temperature modifier in heat exchanger {1}

DEFINITION

Classification: 165/81

(under the class definition) Apparatus with provision for dimension variation of a heat exchanger element produced by temperature change.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

573.1, for a building structure with means accommodating dimension variations due to changing conditions.