US PATENT SUBCLASS 162 / 337
.~.~.~.~ Recirculation skimming or excess stock take-off

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

232  DF  APPARATUS {22}
289  DF  .~ Running or indefinite length product forming and/or treating means {19}
315  DF  .~.~ Means directing stock into contact with molding surface {7}
336  DF  .~.~.~ Flow box, slice, and/or approach flow {6}
337.~.~.~.~ Recirculation skimming or excess stock take-off

DEFINITION

Classification: 162/337

(under subclass 336) Apparatus provided with means (1) directing at least a portion of the stock slurry that is surplus back to the forming area, (2) means for removing from the forming area a layer of the pulp slurry, or (3) means removing surplus slurry or waste from the forming area before contact of the surplus material with the forming surface.

(1) Note. "Surplus" or "excess" stock does not mean the white water drained through the forming wire. Rather it is stock over and above that which is necessary to form the product. For means removing white water search subclasses 335 and 348.

SEE OR SEARCH THIS CLASS, SUBCLASS:

335, and 348, and see (1) Note above.