Patent ID: 6460832
Filing Date: 2002-10-08
Classification: B01J,F28F,Y10S

Abstract:
A bundle of liquid film fill sheets which nest and may be expanded to form all or part of a film fill pack mounted on supporting structure, said bundle comprising:a plurality of nested film fill sheets, each having area-increasing surface patterns on opposite faces thereof, the surface patterns of the sheets being configured for complemental nesting of adjacent overlying sheets, at least certain of said sheets being offset with respect to the other sheets to present a nested, shingled fill sheet bundle, each of said sheets having a primary opening therein for receipt of the supporting structure for the film fill pack, said certain sheets of the bundle having secondary openings for receipt of the supporting structure therein such that when the sheets are in said shingled, nested relationship, the secondary openings of said certain other sheets align with the primary openings of the remaining sheets of the bundle, and there being slots in said certain sheets of the bundle communicating the secondary openings of said certain sheets with the primary openings therein for clearing said support structure for the sheets, the nested bundle being expandable to form a film fill pack with liquid and coolant fluid passages being presented between adjacent sheets by unshingling of said certain sheets while the bundle is supported on said supporting structure as the slots in said certain sheets clear the supporting structure during unshingling of said certain sheets, wherein each of said film sheets is of flexible material and each of the slots in said certain sheets have a first circular aperture having a first diameter, a second circular aperture having a second diameter, and an elongated, relatively narrow slit having a width less than the first diameter and less than the second diameter, so that the slots permit the support structure to pass therethrough as the film material flexes during unshingling of said certain sheets of the bundle.