A separatory apparatus comprises a card shaped core, flexible core extenders, hollow capillary fibers wound around the core and bonded to the core extenders, and a sealing flange having about the same rigidity and about the same density as the material from which the core extenders are fabricated. The...http://www.google.es/patents/US4031012?utm_source=gb-gplus-sharePatente US4031012 - Separatory apparatus
