US PATENT SUBCLASS 165 / DIG 10
.~ Cleaning storage mass


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

DIG 9  DD  HAVING A SOLID HEAT STORAGE MASS FOR ABSORBING HEAT FROM ONE FLUID AND RELEASING IT TO ANOTHER (I.E. REGENERATOR) {5}
DIG 10.~ Cleaning storage mass {2}
DIG 11  DD  .~.~> Reciprocating cleaner device (e.g. scraper, sprayer)
DIG 12  DD  .~.~> Spray nozzle cleaner