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Fibrous filtration face mask having corrugated polymeric microfiber filter layer 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B32B-005/06
출원번호 US-0449512 (1995-05-23)
발명자 / 주소
  • Braun David L. (Lake Elmo MN) Steffen James E. (Woodbury MN)
출원인 / 주소
  • Minnesota Mining and Manufacturing Company (St. Paul MN 02)
인용정보 피인용 횟수 : 57  인용 특허 : 0

초록

A composite structure contains a lofty corrugated nonwoven web of polymeric microfiber that is maintained in a corrugated condition by securing a fabric to the corrugated web at the valleys of the corrugations. The composite structure is made without substantially effecting web loft by (i) introduci

대표청구항

A fibrous-filtration-face-mask that comprises: a composite structure that is formed to fit over the nose and mouth of a person and that comprises a filter layer that includes corrugated nonwoven web of polymeric microfiber having a solidity of 0.1 or less, the composite structure also comprising a m

이 특허를 인용한 특허 (57)

  1. Wood, Willard E.; Beaverson, Neil J., Amphoteric grafted barrier materials.
  2. Wood, Willard E.; Bohrer, Timothy H.; Kellenberger, Stanley R.; Beaverson, Neil J., Articles having a polymer grafted cyclodextrin.
  3. Fanselow Dan L. ; Moreno Roberto C. ; Pham Thanh H. ; Kelley Michele H., Channel flow filter.
  4. Braun David L. ; Steffen James E., Corrugated nonwoven webs of polymeric microfiber.
  5. Braun David L. ; Steffen James E. ; Venkatapathy Raju, Corrugating apparatus.
  6. Angadjivand, Seyed Abolhassan; Springett, James E.; Insley, Thomas I., Crush resistant filtering face mask.
  7. Walls, Howard Jerome; Newsome, Randall J.; Clayton, Anthony Clint; Yaga, Robert W.; Ensor, David Samuel, Curved nanofiber products and applications thereof.
  8. Chung, Geal Hyub, Disposable gas mask.
  9. Gerald M. Brostrom ; David C. Byram, Drop-down face mask assembly.
  10. Li, Fuming B.; Bai, Feng; Sebastian, John M.; Jones, Marvin E., Electret webs with charge-enhancing additives.
  11. Sebastian, John M.; Li, Fuming B.; Jones, Marvin E.; Dressel, Luke T.; Japuntich, Daniel A., Electret webs with charge-enhancing additives.
  12. Joel K. Hagglund ; Thomas I. Insley ; Todd W. Johnson, Electrofiltration apparatus.
  13. Joel K. Hagglund ; Thomas I. Insley ; Todd W. Johnson, Electrofiltration process.
  14. Wood,Willard E., Enhanced lubrication in polyolefin closure with polyolefin grafted cyclodextrin.
  15. Elsberg, Laura L., Extensible and retractable face mask.
  16. Cindy J. Blackstock ; Fred Hart ; Lupe Santoy, Face mask structure.
  17. Yahiaoui, Ali; Quincy, III, Roger Bradshaw; MacDonald, John Gavin; Steindorf, Eric Clayton; Brostin, Joel, Facemasks containing an anti-fog / anti-glare composition.
  18. Creagan, Christopher Cosgrove; Marmon, Samuel Edward, Fibrous creased fabrics.
  19. Angadjivand, Seyed A.; Martin, Philip G.; Running, David B., Filter element that has plenum containing bonded continuous filaments.
  20. Duffy, Dean R.; Holler, Robert E., Filtering face-piece respirator dispenser.
  21. Duffy, Dean R., Filtering face-piece respirator having parallel line weld pattern in mask body.
  22. Duffy, Dean R., Filtering face-piece respirator having strap-activated folded flange.
  23. Bernard, Robin D.; Prokop, Jiri, Filtration device for cooking oil.
  24. Bernard, Robin D.; Prokop, Jiri, Filtration device for cooking oil.
  25. Arnold, Billy Dean, Filtration medium with enhanced particle holding characteristics.
  26. Wood, Willard E.; Beaverson, Neil J.; Seethamraju, Kasyap V., Grafted cyclodextrin.
  27. Wood, Willard E.; Beaverson, Neil J.; Seethamraju, Kasyap V., Grafted cyclodextrin.
  28. Wood, Willard E.; Beaverson, Neil J.; Seethamraju, Kasyap V., Grafted cyclodextrin.
  29. Wood, Willard E.; Beaverson, Neil J.; Seethamraju, Kasyap V., Grafted cyclodextrin.
  30. Wood,Willard E.; Beaverson,Neil J.; Seethamraju,Kasyap V., Grafted cyclodextrin.
  31. Brostrom, Gerald M.; Castiglione, David M.; Mittelstadt, William A.; Solyntjes, Alan J., Half-mask respirator with head harness assembly.
  32. Duffy, Dean R., Horizontal flat-fold filtering face-piece respirator having indicia of symmetry.
  33. Angadjivand, Seyed A.; Brandner, John M.; Springett, James E., Meltblown fiber web with staple fibers.
  34. Insley, Thomas I.; Johnston, Raymond P., Method of filtering certain particles from a fluid using a depth loading filtration media.
  35. Sebastian, John M.; Jones, Marvin E.; Li, Fuming B.; Chou, Shih-Hung; Schultz, Nathan E.; Keough, Justin L.; Shah, Rahul R.; Japuntich, Daniel A., Method of making electret articles based on zeta potential.
  36. Springett, James E.; Angadjivand, Seyed Abolhassan, Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers.
  37. Angadjivand, Seyed A.; Brandner, John M.; Springett, James E., Molded respirator comprising meltblown fiber web with staple fibers.
  38. Springett James E. ; Barrett Leonard W. ; Harper Roberta C., Molded respirator containing sorbent particles.
  39. Springett James E. ; Barrett Leonard W. ; Harper Roberta C., Molded respirator containing sorbent particles.
  40. Beer, Markus; Rosendahl, Marco; Stausberg, Wolfgang, Multilayer composite filter medium for serial filtration.
  41. Pike Richard Daniel ; Lassig John Joseph ; Shipp ; Jr. Peter Wyndham ; Williams Barbara Jean, Nonwoven filter media.
  42. Duffy, Dean R., Parallel bond lines on a fibrous filtration face mask.
  43. Talley, Jr., Arthur; Harris, Frank O.; Dugan, Jeffrey S.; Wilkie, Arnold E.; Shiang-Jung Ma Yu; Yu, Jing-Peir, Process of making microfilaments.
  44. Fecteau Keith E., Respirator filter having a pleated filter layer.
  45. Lersch,Ulrich; Nicolis,Petro, Respiratory air filter.
  46. Chiam,Kia Chee, Respiratory mask with inserted spacer.
  47. Lovell,William S., Self-powered, wearable personal air purifier.
  48. Harris, Frank O.; Dugan, Jeffrey S.; Yu, Jing-Peir; Talley, Jr., Arthur; Wilkie, Arnold, Splittable multicomponent elastomeric fibers.
  49. Jeffrey S. Dugan, Splittable multicomponent polyolefin fibers.
  50. Healey, David T., Waved filter media and elements.
  51. Healey, David T.; Gahan, Richard, Waved filter media and elements.
  52. Healey, David T.; Gahan, Richard, Waved filter media and elements.
  53. Healey, David T.; Gahan, Richard, Waved filter media and elements.
  54. Healey, David T.; Gahan, Richard E., Waved filter media and elements.
  55. Healey, David Thomas; Gahan, Richard E., Waved filter media and elements.
  56. Croll, Lisa M.; Dahn, Jeffrey R.; Smith, Jock W. H.; Romero, Jennifer V., Zinc oxide containing filter media and methods of forming the same.
  57. Croll, Lisa M.; Dahn, Jeffrey R.; Smith, Jock W. H.; Romero, Jennifer V., Zinc oxide containing filter media and methods of forming the same.
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