US PATENT SUBCLASS 162 / 236
.~.~.~.~ Continuous

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

232  DF  APPARATUS {22}
233  DF  .~ Digester {12}
234  DF  .~.~ With mechanical defibering means {1}
235  DF  .~.~.~ Concurrent {1}
236.~.~.~.~ Continuous

DEFINITION

Classification: 162/236

(under subclass 235) Apparatus in which the stock material is fed to and discharged from a digester and defiberating apparatus at substantially the same rate, whereby a more or less steady flow of material is maintained.