Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2006-01-17
2006-01-17
Drodge, Joseph (Department: 1723)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C055S527000, C210S497010, C210S505000, C428S098000, C428S212000, C428S221000
Reexamination Certificate
active
06986427
ABSTRACT:
A non-woven melt-blown filament medium includes a mass of essentially continuous melt-blown polymer filaments and an essentially continuous traversing melt-blown polymer filament extending through the mass. The mass has a depth dimension, a longitudinal dimension, and a latitudinal dimension. The mass includes a plurality of layers, each of the plurality of layers being generally oriented in the longitudinal and latitudinal dimensions. The traversing filament is generally oriented in the depth dimension and extends through at least one layer of the mass. In one embodiment, the mass is cylindrical in shape and the layers comprise concentric zones. The traversing filament is intentionally deposited and positioned to improve the physical properties of the mass.
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Aune Thomas M.
Kopp Clinton V.
Madsen Michael J.
Rolchigo Philip M.
Stifter Travis G.
Drodge Joseph
GE Osmonics, Inc.
Kinney & Lange , P.A.
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