Gas separation – Two or more separators – Plies or layers of different characteristics or orientation
Reexamination Certificate
2005-09-13
2005-09-13
Smith, Duane (Department: 1724)
Gas separation
Two or more separators
Plies or layers of different characteristics or orientation
C055S487000, C055S524000, C055S527000, C055S528000, C428S219000, C428S359000, C442S057000, C442S327000, C442S384000, C442S408000, C442S410000, C442S411000, C210S500100, C210S505000, C210S508000
Reexamination Certificate
active
06942711
ABSTRACT:
The present invention is directed to a filter media comprised of an electro-conductive scrim so as to improve on the dissipation time of an electrostatic charge. Further, the present invention is directed to a method of making such a filter media, which is formed through hydroentanglement, thus avoiding the deleterious effects of mechanical needling, while providing a filter media having the requisite strength characteristics, without possessing a limiting factor in performance. The filtration media of the present invention also demonstrates a highly desirable uniformity for cost-effective use.
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Faulkner Richard
Hao Ping
Lindblom Per
Greene Jason M.
Polymer Group Inc.
Smith Duane
Wood Phillips Katz Clark & Mortimer
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