US PATENT SUBCLASS 165 / DIG 36
.~.~ Distinct passages formed in individual modules


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

Internet Version by PATENTEC © 1999      Terms of Use



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 30  DD  .~ Mass formed of modules arranged in three dimensional matrix ("Checkerwork") {4}
DIG 36.~.~ Distinct passages formed in individual modules