Appeal No. 1997-3267
Application 08/324,386
APPENDED CLAIMS
4. A filtration method for separating liquid and solid
materials from a mixture, comprising the steps of:
providing a pressure chamber containing an endless
filter belt and a suction box;
supplying a mixture of liquid and solid materials at
higher than atmospheric pressure into said pressure chamber on an
upper side of said filter belt;
connecting said suction box onto an underside of said
filter belt; and
maintaining a higher than atmospheric pressure in said
pressure chamber and a relatively small difference between the
pressure in said pressure chamber and the pressure in said
suction box.
7. A filtration method for separating liquid and solid
materials from a mixture, comprising the steps of:
providing a pressure chamber containing an endless
filter belt and a suction box therein;
supplying a mixture of liquid and solid materials on a
first side of said filter belt;
connecting said suction box to an underside of said
filter belt; and
maintaining a higher than atmospheric pressure in said
pressure chamber of roughly 20 bar and a relatively small
difference between said pressure in said pressure chamber and the
pressure in said suction box when said suction box is connected
to the underside of said filter belt.
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