Wrought fiber sheet and filter unit

Details Wrought fiber sheet and filter unit Wrought fiber sheet and filter unit

2008-04-29

2008-04-29

Chiesa, Richard L. (Department: 1797)

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

C055S497000, C055S499000, C055S521000, C055S528000, C055SDIG007, C055SDIG031, C055SDIG039, C428S297400, C428S395000

Reexamination Certificate

active

10515277

ABSTRACT:
A wrought fiber sheet or air cleaning filter unit that exhibits high performance and is biodegradable so as to enable reducing load upon environment. The wrought fiber sheet is produced by coupling biodegradable fiber sheets having electret properties by means of a configuration reinforcing member of a biodegradable material. Further, the frame for accommodating the wrought fiber sheet is also constituted of a biodegradable member so as to obtain an air cleaning filter unit that exerts biodegradability as a whole.

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Supplemental European Search Report dated Jul. 6, 2005.

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