Patent ID: 7506473

Claim:
An irrigation device for delivering water directly from a remote area to an area of soil surrounding the roots of a plant, said device comprising: a longitudinally extending cylindrically shaped bundle of capillary material including a plurality of tubes extending from a source of water to an area to be irrigated; said bundle of capillary material including a plurality of tubes bound together in contact with one another by an outer impermeable polyethylene sheath and said plurality of tubes extend from an upper cone shaped end to a lower cone shaped end so that said plurality of tubes in an outer portion of said bundle are shorter than the plurality of tubes in an inner portion of said bundle and a first cylindrical shaped sponge filter having a peripheral surface surrounding said upper cone shaped end and an impermeable cover on top of said first cylindrically shaped filter; a second filter of porous ceramic having a shape of a cone superimposed on and covering said lower cone shaped end so that the water from the source of water is drawn up by capillary action and delivered to an area surrounding said upper cone shaped end; and including a plurality of impervious plastic tapered rings adapted to fit over and in contact with one of said cone shaped ends for reducing the flow of water through said device.