	US 7,491,330 B2
	Silver chloride treated water purification device containing the porous grog and method for making same
Anthony Reid Harvey, 109 Russell St., Buffalo, N.Y. 14214 (US)
Filed on Oct. 22, 2004, as Appl. No. 10/969,930.
Application 10/969930 is a continuation in part of application No. 10/112936, filed on Apr. 02, 2002, granted, now 6,905,598.
Application 10/112936 is a continuation in part of application No. 09/692203, filed on Oct. 20, 2000, granted, now 6,537,939.
Prior Publication US 2005/0124482 A1, Jun. 09, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 24/00 (2006.01); B01D 39/00 (2006.01)

U.S. Cl. 210—510.1 [210/496; 210/500.21; 210/502.1; 210/503; 210/902; 210/908; 210/911; 501/80; 501/81]

3 Claims

1. A device for purifying contaminated water, said device comprising:

a top layer comprising porous grog, crushed brick or a mixture thereof having particle sizes from about 10 to 20 mesh;

a first intermediate layer comprising porous grog, crushed brick or a mixture thereof having particle sizes from about 60 mesh to about 100 mesh;

a second intermediate layer comprising porous grog, crushed brick particles or a mixture thereof having particle sizes from about 60 mesh to about 100 mesh with a further, single digit percentage addition of sub 100 mesh grog for adjusting flow rate downward; and

wherein said layers comprises silver chloride; wherein said contaminated water passing in order through said top layer, said first intermediate layer and said second intermediate layer.