US PATENT SUBCLASS 422 / 175
.~.~.~ Regenerative heat sink

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

129  DF  CHEMICAL REACTOR {28}
168  DF  .~ Waste gas purifier {5}
173  DF  .~.~ With heat exchanger for reaction chamber or reactants located therein {2}
175.~.~.~ Regenerative heat sink

DEFINITION

Classification: 422/175

Regenerative heat sink:

(under subclass 173) Apparatus wherein the heat-exchange means includes a regenerative heat-sink means; e.g., a low heat capacity mass which absorbs heat from the hot waste gas and gives up the heat, upon reversal of flow, to colder waste gas to preheat the same upstream of the reaction site, etc.