Liquid purification or separation – Filter – Material
Reexamination Certificate
2011-03-01
2011-03-01
Kim, John (Department: 1777)
Liquid purification or separation
Filter
Material
C210S483000, C210S488000, C210S489000, C210S490000, C210S491000, C210S500100, C210S503000, C210S504000, C210S506000, C210S508000, C422S105000
Reexamination Certificate
active
07896167
ABSTRACT:
A novel composite of glass fiber paper and reinforcing material that is useful for high speed manufacturing of devices comprising it is disclosed. The composite is formed by pressing into a glass fiber paper, having multimodal (at least bi-modal) composition, a hydrophilic reinforcing material. The composite has anisotropic separation properties that are particularly useful for preparing a fluid fraction from whole blood. The preferred glass fiber paper comprises glass fibers such that there are a plurality of short fibers (6) having large diameters and long fibers (2) with smaller diameters. The preferred glass fiber paper also exhibits partial ordering. There are many more of the long fibers (2) with smaller diameters than of the short fibers (6) having large diameters. Also disclosed are several blood separator device designs for efficiently separating the fluid fraction of blood from whole blood using the composite.
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Milunic David
Russell Donald
Akers Biosciences, Inc.
Kim John
McNichol, Jr. William J.
Reed Smith LLP
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