Liquid purification or separation – Processes – Separating
Reexamination Certificate
2006-01-31
2006-01-31
Popovics, Robert James (Department: 1724)
Liquid purification or separation
Processes
Separating
C210S650000, C210S798000, C210S321820, C210S321890, C210S496000, C210S510100, C422S180000, C055S523000, C055SDIG003, C502S527180, C502S527190
Reexamination Certificate
active
06991737
ABSTRACT:
A filtering method including the steps of preparing a water purifying apparatus1with a cell structure2having units for constituting cell structure4, and a cap portion3, and making raw water flow into cells10from one end, and filtered by a partition walls9to take out filtrate water from the side of an outer peripheral surface8. The cell structure2is so constructed that the ratio of maximum value to minimum value in water permeability among the partition walls9provided therein is within a range from of 110 to 300% in terms of percentage, and the cells10located on the side of an outer periphery7of the cell structure2have a greater water permeability.
REFERENCES:
patent: 4781831 (1988-11-01), Goldsmith
patent: 5009781 (1991-04-01), Goldsmith
patent: 5108601 (1992-04-01), Goldsmith
patent: 5855781 (1999-01-01), Yorita et al.
patent: 6077436 (2000-06-01), Rajnik et al.
patent: 6126833 (2000-10-01), Stobbe et al.
patent: 2004/0200785 (2004-10-01), Oyachi et al.
patent: 4324347 (1994-01-01), None
patent: 0 923 983 (1999-08-01), None
patent: 2 388 807 (2002-05-01), None
patent: 6-16819 (1994-03-01), None
patent: 6-88918 (1994-03-01), None
patent: 6-99039 (1994-04-01), None
patent: 11-169679 (1999-06-01), None
patent: 11 169681 (1999-06-01), None
Aoki Nobuhiro
Murata Naoki
Oyachi Hiroyuki
Yonekawa Hitoshi
NGK Insulators Ltd.
Parkhurst & Wendel LLP
Popovics Robert James
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