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Composite of pleated and nonwoven webs 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B32B-003/28
출원번호 US-0426031 (1995-04-21)
발명자 / 주소
  • Wadsworth Larry C.
  • Jirsak Oldrich,CZX
  • Tsai Peter Ping-Yi
출원인 / 주소
  • The University of Tennessee Research Corporation
대리인 / 주소
    Weiser and Associates, P.C.
인용정보 피인용 횟수 : 31  인용 특허 : 78

초록

A web or film is electrostatically charged by sequentially subjecting the web or film to a series of electric fields such that adjacent electric fields have substantially opposite polarities. Both a method and apparatus are disclosed for charging the web or film.

대표청구항 ▼

[ What is claimed is:] [1.] A composite web comprised of at least two layers including a first layer formed of a carded web and folded to define a series of pleats, and a second layer formed of a nonwoven web and including a planar surface, wherein the pleats of the carded webs are attached to the p

이 특허에 인용된 특허 (78)

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  4. Anantharamaiah, Nagendra; Freeman, William S.; Smith, Bruce, Filter media including polymer compositions and blends.
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  6. Thomson, Cameron; Godsay, Milind; Keisler, Randall, Filter media suitable for hydraulic applications.
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  7. Wertz, John A.; Guimond, Douglas M., Filter media with a multi-layer structure.
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  8. Wertz, John A.; Guimond, Douglas M., Filter media with a multi-layer structure.
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  9. Wertz, John A.; Guimond, Douglas M., Filter media with a multi-layer structure.
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  10. Cox, Stephen T.; Freeman, William S.; Doucoure, Abdoulaye; Wertz, John A., Fine fiber filter media and processes.
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  14. Wadsworth Larry C. ; Jirsak Oldrich,CZX ; Tsai Peter Ping-yi, Mechanically interlocked and thermally fused staple fiber pleated and non-pleated webs.
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  15. Wertz, John A.; Healey, David Thomas; Freeman, William S.; Manns, John L.; Rowlands, Mark, Meltblown filter medium.
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