US PATENT SUBCLASS 165 / DIG 405
.~.~.~ Extending in a longitudinal direction


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 400  DD  .~ Shell enclosed conduit assembly {4}
DIG 401  DD  .~.~ Including tube support or shell-side flow director {5}
DIG 405.~.~.~ Extending in a longitudinal direction {7}
DIG 406  DD  .~.~.~.~> Helically or spirally shaped
DIG 407  DD  .~.~.~.~> Internal casing or tube sleeve {2}
DIG 411  DD  .~.~.~.~> Connecting to shell by specific structure
DIG 412  DD  .~.~.~.~> Including transverse element (e.g., fin, baffle, etc.)
DIG 413  DD  .~.~.~.~> For directing flow along the length of tube
DIG 414  DD  .~.~.~.~> For supporting coil tubes
DIG 415  DD  .~.~.~.~> Including perforations