Patent ID: 8597435
Filing Date: 2013-12-03
Classification: B01D

Abstract:
1. An apparatus for use with a fluid delivery hose to clean reusable pool water filters and like design filter cartridges having a pleated construction with valleys between folded pleats of filter material positioned around a center tower, said apparatus comprising: a hose nut configured for attachment to a hose fitting, said hose nut having an internal seal; an on/off valve in fluid communication with said hose nut and configured to control the flow rate of fluid supplied by a hose connected to said hose nut; a rigid and elongated fluid spray body in fluid communication with said on/off valve and having a plurality of fluid spray openings providing a fluid spray with a wide and flat fluid flush pattern; and a semi-rigid comb member having a plurality of long and distally-narrowing fingers, said comb member connected to said fluid spray body in a position placing said long and distally-narrowing fingers below said fluid spray openings, allowing said fingers to receive and carry fluid spray from said openings between folded pleats and into the valleys located close to the center tower in reusable pool water filters and like design filter cartridges while concurrently allowing mechanical interfacing of said fingers with the sides of folded pleats and the valleys between them, wherein when said fingers are positioned between the pleats of a reusable pool water filter or like design filter cartridge, said fingers separate adjacent ones of said pleats allowing said semi-rigid fingers and the water carried thereon to loosen and mechanically dislodge imbedded debris from the folded pleats and its valleys without damage to filter material while additional fluid spray above said fingers with the assistance of gravity downwardly flushes debris from the folded pleats, preventing accumulation of dislodged debris on filter material.