Appeal No. 1999-0337
Application 08/323,839
more particularly to “a stock feed system for a multi-layer
headbox and a method in the operation of a multi-layer
headbox” (specification, page 1). Claim 1 is illustrative and
reads as follows:
1. Stock feed system in combination with a multi-layer
headbox having at least two inlet headers into each of which a
respective stock flow is passed and which extend in a
direction transverse to a flow direction of the respective
stock flow, comprising
a single fresh stock storage tank,
a branching member,
first passage means for continuously passing a single
flow of fresh stock from said single storage tank to said
branching member where said single flow of fresh stock is
divided into a plurality of divided stock flows without
storing said single flow of fresh stock between said single
fresh stock tank and said branching member,
second passage means for continuously passing each of
said plurality of divided stock flows from said branching
member into a respective one of said at least two inlet
headers in said headbox without storing said divided stock
flows between said branching member and said respective inlet
header, and
means for independently adding chemicals and/or fillers
to each of said plurality of divided stock flows during the
flow of said plurality of divided stock flows after said
branching member and before said plurality of divided stock
flows enter into said headbox such that stock in each inlet
header has an independently controllable chemical and/or
filler characteristic.
THE PRIOR ART
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