US PATENT SUBCLASS 162 / 52
.~ Charging and/or discharging fibrous material


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}
52.~ Charging and/or discharging fibrous material


DEFINITION

Classification: 162/52

(under subclass 1) Processes which include a step of charging a reaction vessel with fibrous material or discharging it therefrom, or from another vessel closely associated therewith, such as a blowpit.

(1) Note. A broadly recited step of "charging", "loading", "discharging", "blowing", etc., is not a sufficient basis for placing a process in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17+, for processes involving continuous charging or discharging of cellulosic material into and out of a reaction vessel.

246, for the combination of a digester and means for charging and/or discharging the same.