US PATENT SUBCLASS 210 / 805
.~.~ And recirculating liquid

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
767  DF  .~ Separating {16}
805.~.~ And recirculating liquid

DEFINITION

Classification: 210/805

And recirculating liquid:

(under subclass 767) Process including a step of recycling all or part of the liquid being treated or the separated constituent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

167, for combined apparatus including means to recirculate a liquid therebetween.

194+, for purifiers or separators with recirculation means.

621+, for process of treatment by living organisms including recirculation.

629, for internal recirculation with treatment by living organisms.

677, for ion exchange or sorption processes with rehabilitation by conserved or recirculated fluid.

712+, for precipitation processes including external recirculation. 765, for chemical treatment processes with liquid recirculation.