US PATENT SUBCLASS 162 / 46
.~.~.~ Steam only


Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

1  DF  PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL {33}
29  DF  .~ With regeneration, reclamation, reuse, recycling or destruction of digestion fluid {3}
41  DF  .~.~ Recirculation (includes separation from fibers) {2}
46.~.~.~ Steam only


DEFINITION

Classification: 162/46

(under subclass 41) Processes in which the fluid being circulated consists of steam.