US PATENT SUBCLASS 162 / 18
.~.~ With compression, squeezing or compacting of fibrous material during charging


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}
17  DF  .~ Continuous chemical treatment or continuous charging or discharging {2}
18.~.~ With compression, squeezing or compacting of fibrous material during charging


DEFINITION

Classification: 162/18

(under subclass 17) Processes in which the raw fibrous material is subjected to compression at the point of entrance to the treating zone so as to form a plug sealing off the zone from the exterior thereof.