MEMBRANE DIFFUSION DEVICE HAVING RIBBED MEMBRANE SUPPORT

摘要

MEMBRANE DIFFUSION DEVICE HAVINGRIBBED MEMBRANE SUPPORTInventor: Ferris E. NewmanABSTRACT OF THE DISCLOSUREA membrane diffusion device is disclosed whichcomprises flat, tubular, semipermeable membrane, andflexible, ribbed membrane support sheet positioned againstsaid membrane and typically rolled up together into a coil.In accordance with this invention, a first set of membranesupporting ribs is disposed on one side of the support sheetwith the ribs of the first set being disposed in longitudinalrelation to the axis of the tubular membrane, the ribs of thefirst set also defining spaced apertures to permit fluid flowtransversely across the membrane. A second set of membranesupporting ribs is disposed on the other side of the membranesupport sheet at an angle to the tubular membrane axis.