A porous material for channeling ink in an ink cartridge and a method for channeling the ink includes a porous material housed in an ink compartment of the ink cartridge. The porous material includes a body which has a protruding portion located proximate at the bottom. The bottom surface is bucking...http://www.google.de/patents/US7018028?utm_source=gb-gplus-sharePatent US7018028 - Porous material for channeling ink in an ink cartridge and method for channeling ink
