US PATENT SUBCLASS 162 / 235
.~.~.~ Concurrent

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.~.~.~ Concurrent {1}
236  DF  .~.~.~.~> Continuous

DEFINITION

Classification: 162/235

(under subclass 234) Combinations in which the digester and defiberator operate on the material simultaneously and under the same conditions of temperature and pressure.

(1) Note. The defiberating means in this combination may operate only part of the time.