US PATENT SUBCLASS 165 / DIG 369
.~.~.~.~ Including seal to plate attachment means


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

DIG 355  DD  HAVING SEPARATE FLOW PASSAGE FOR TWO DISTINCT FLUIDS {7}
DIG 356  DD  .~ Plural plates forming a stack providing flow passages therein {11}
DIG 364  DD  .~.~ With fluid traversing passages formed through the plate {4}
DIG 365  DD  .~.~.~ Including peripheral seal element forming flow channel bounded by seal and heat exchange plates {3}
DIG 369.~.~.~.~ Including seal to plate attachment means