Patent ID: 6206350
Filing Date: 2001-03-27
Classification: F28C,F28F,Y02B,Y10S

Abstract:
A fill-sheet for film fill-packs of heat transfer and mass transfer devices, said devices having means for transferring gas-flow and fluid through said fill-packs, each said fill-pack having at least two said fill-sheets, said fill sheets comprising:each said fill-sheet having a reference plane,each said fill sheet having an obverse surface and a reverse surface,a plurality of ridges and grooves, each said ridge and groove having a first end and a second end,said plurality of ridges and grooves arranged in a plurality of ranks of said ridges and grooves,each said obverse surface and said reverse surface having a formed array with a repeating pattern of said ranks of ridges and grooves,each said rank having at least one apex above said reference plane and at least one valley below said reference plane,one of said first ends and second ends of each said ridge and groove terminating at an apex vertically above said reference plane on each said obverse and reverse surface,the other of said first ends and second ends of each said ridge and groove extending to at least said one valley below said reference plane,each said fill-sheet positionable in a fill-pack to provide said apices and said valleys of one of said obverse and reverse surfaces in substantial facing alignment with said apices and said valleys of an other of said obverse and reverse surfaces of an adjacent fill-sheet to define a plurality of channels between said adjacent fill-sheet obverse and reverse surfaces said facing ranks of aligned peaks separated by a separation gap.