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.Page: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 NextLast modified: November 3, 2007