Electret Filter

Details Electret Filter Electret Filter

1994-10-19

1995-07-25

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

55528, 55DIG39, 264DIG48, 428136, 428255, 428910, 96 99, B32B 310

Patent

active

054360544

ABSTRACT:
An electret filter formed by laminating a plurality of network electret film-split fiber fleeces having a different mesh size. It exhibits a high collecting efficiency with a very small pressure loss and without any appreciable fiber dropping, or any channeling.

REFERENCES:
patent: Re31285 (1983-06-01), Turnhout et al.
patent: 5112677 (1992-05-01), Tani et al.
patent: 5143767 (1992-09-01), Matsuura et al.
patent: 5350620 (1994-09-01), Sundet et al.

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