US PATENT SUBCLASS 162 / 247
.~.~.~ Target, impact, explosion


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

232  DF  APPARATUS {22}
233  DF  .~ Digester {12}
246  DF  .~.~ Charging and/or discharging means (including blow pits) {1}
247.~.~.~ Target, impact, explosion


DEFINITION

Classification: 162/247

(under subclass 246) Apparatus in which the stock material is treated by (1) projecting it violently from the digester against a fixed abutment or (2) the material is caused to disintegrate by suddenly releasing the digestion pressures.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21+, for digestion processes including a step of defibering by projection or explosion.

SEE OR SEARCH CLASS

99, Foods and Beverage: Apparatus,

323.4+, see the Notes thereto for other apparatus for expanding or disintegrating material by a sudden release in

pressure.