US PATENT SUBCLASS 55 / 457
.~.~.~ Between gas flow path wall and central core

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

434  DF  DEFLECTOR {10}
447  DF  .~ Fixed gas whirler or rotator means {9}
456  DF  .~.~ Helical vane or baffle within flow conduit {1}
457.~.~.~ Between gas flow path wall and central core

DEFINITION

Classification: 55/457

(under subclass 456) Apparatus comprising a solid or hollow element positioned interiorly of a portion of the gas flow passage to provide for gas flow in the space between it and the wall of the gas passage, with the twisted member positioned in the space.