US PATENT SUBCLASS 60 / 296
.~.~.~ Flow reversing structure

Current as of: June, 1999
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60 /   HD   POWER PLANTS

272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
282  DF  .~ By means producing a chemical reaction of a component of the exhaust gas {13}
295  DF  .~.~ Having means for regenerating, replacing, or feeding liquid or solid reagent or catalyst {1}
296.~.~.~ Flow reversing structure

DEFINITION

Classification: 60/296

(under subclass 295) Apparatus in which cleaning or regenerating is accomplished by reversing the flow of fluid through the agent, reactant or catalytic material.