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Air filter assembly 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B03C-009/02
  • B01D-050/00
출원번호 US-0086449 (1979-10-19)
우선권정보 JP-0054974 (1979-05-04)
발명자 / 주소
  • Shinagawa Takehisa (Sakai JPX) Inoue Tsunehiko (Towdabayashi JPX)
출원인 / 주소
  • Nitta Belting Co., Ltd. (Osaka JPX 03)
인용정보 피인용 횟수 : 49  인용 특허 : 2

초록

An air filter assembly including an electret filter sheet of material which exhibits electrical charges of opposite sign on opposite faces thereof and a non-electret conventional filter sheet of material combined with and disposed upstream from the electret filter sheet of material, whereby particle

대표청구항

An air filter assembly comprising: a frame for supporting filter sheets, said frame having input and output ends; a first filter sheet of HEPA material provided in said frame adjacent to said input end of said frame, said first filter sheet of HEPA material being substantially free of an electrical

이 특허에 인용된 특허 (2)

  1. Carey ; Jr. Patrick H. (Bloomington MN), Filter medium layered between supporting layers.
  2. Kubik Donald A. (Houlton WI) Davis Charles I. (Cottage Grove MN), Melt-blown fibrous electrets.

이 특허를 인용한 특허 (49)

  1. Ptak, Thaddeus J.; Gillilan, Chrystal B.; Baldinger, Russell, Air filter formed by slit and expanded layers of electrostatically enhanced material.
  2. Goodwin,William M.; Kishkovich,Oleg P.; Grayfer,Anatoly, Air handling and chemical filtration system and method.
  3. Niakan, Shahriar Nick, Air intake flow device and system.
  4. Spero Joel J. (715 Silverwood Cir. Annapolis MD 21403), Aromatic air circulation and filtration system.
  5. Neudeck, Eckhard, Cleanable dust filter comprising a zigzag pleated filter pack.
  6. Schultink Jan,BEX ; Schultink Bas,BEX ; Wadsworth Larry C., Composite pleated fibrous structures containing split film fibers.
  7. Covington Edward A. ; Tsengouras Demetrios A., Dual Media air filter with electrostatic charge.
  8. Burnett Gilbert W. (Rockwall TX) Jackson Paul D. (Rockwall TX), Dual-dipole electrostatic air filter.
  9. Reed John F. (Arden Hills MN) Jones Marvin E. (Stillwater MN), Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene).
  10. Preston Biggers Knight ; David Lewis Myers ; John Joseph Lassig ; David Grant Midkiff ; Rick Leon Busby ; Anthony Lee Lamanac ; Leonid Anthony Turkevich, Electret treatment of high loft and low density nonwoven webs.
  11. Ohmori Susumu (Okayama JPX) Yagi Akira (Otsu JPX) Takase Satoshi (Otsu JPX), Electretized material for a dust filter.
  12. Jang Jun-Ui (Suwon KRX), Electrical dust collector.
  13. Joel K. Hagglund ; Thomas I. Insley ; Todd W. Johnson, Electrofiltration apparatus.
  14. Joel K. Hagglund ; Thomas I. Insley ; Todd W. Johnson, Electrofiltration process.
  15. Pryne Scott H. ; West Ross D., Enhanced electret needled filtration media and composites.
  16. Hodge Joseph, Fan-fold filter for a forced air ventilation system.
  17. Hodge Joseph, Fan-fold filter for a forced air ventilation system.
  18. Watanabe Moritsuna (Tokyo JPX), Filter for air cleaners.
  19. Okumura Yoshiharu (Otsu JPX) Ando Katsutoshi (Otsu JPX), Filter for liquid and method of filtering liquid.
  20. Tonomoto Yoshihiro (Kawasaki JPX), Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus.
  21. Tonomoto Yoshihiro (Kawasaki JPX), Filter for removing smoke and toner dust used in electrophotographic/electrostatic recording apparatus.
  22. Kaukoniemi, Otto-Ville; Lehtinen, Kaisa; Kosonen, Harri, Filter structure for filtering a particle-containing gas, method of its manufacture and use of porous paper.
  23. Van de Graaf Peter (St. Josephstraat NLX) Horsten Anton J. J. (Statenlaan NLX), Filter system for filtering fluids.
  24. Hodge, Joseph, Filtered air vent.
  25. Dralle, James R., Filtering method.
  26. Gajjar, Nekheel; Micheli, Paul R., Fluid filter system and method.
  27. Stemmer Michael J., Forced air system air filter.
  28. Niakin, Shahriar Nick, High capacity hybrid multi-layer automotive air filter.
  29. Jaroszczyk,Tadeusz; Fallon,Stephen L.; Pardue,Byron A.; Schmitz,Kelly R.; Dorgan,Jason E.; Sonsalla,Thomas P.; Moy,Jerald J.; Morgan,Jeffrey S.; Kallsen,Kent J., High performance, high efficiency filter.
  30. Ramamoorthy,Arun; Bristol,Robert, In-tool and out-of-tool protection of extreme ultraviolet (EUV) reticles.
  31. Milani John, Method of forming a particle size gradient in an absorbent article.
  32. Kaddour, Stephane, Microbicidal filter and filtration cartridge incorporating such a filter.
  33. Ptak, Thaddeus J.; Gillilan, Chrystal B.; Baldinger, Russell, Multi layer pleatable filter medium.
  34. Muraoka Hisashi,JPX, Multifunctional air filter and air-circulating clean unit with the same incorporated therein.
  35. Fttinger Walter (Weinheim DEX) Hauber Michael (Weinheim DEX) Weghmann Arnold (Weinheim DEX), Multilayer electret filter and process of using same.
  36. Cohen Bernard, Nonwoven barrier and method of making the same.
  37. Cohen Bernard, Nonwoven barrier and method of making the same.
  38. Pike Richard Daniel ; Lassig John Joseph ; Shipp ; Jr. Peter Wyndham ; Williams Barbara Jean, Nonwoven filter media.
  39. Cohen Bernard, Nonwoven laminate barrier material.
  40. Cohen Bernard ; Gipson Lamar Heath ; Brostin Joel, Nonwoven webs with one or more surface treatments.
  41. Schweizer Rand ; Motter James W., Paint overspray exhaust air filter.
  42. Belliveau, Richard S., Programmable de-fogger system for a light projector.
  43. Belliveau, Richard S.; Dahly, David R.; Peck, David Karl, Programmable de-fogger system for a light projector.
  44. Gregg Lloyd M. (1974 42nd Ave. San Francisco CA 94116), Static electricity exhaust treatment device.
  45. Fitting, Steven Wayne; Powers, Michael David; Quincy, III, Roger Bradshaw, Sterilization wrap, applications therefor, and method of sterilizing.
  46. Elbrader Clifford B. (Boone AR) Milum Jimmy L. (Harrison AR), Support means for filter material in a non-electric air cleaner.
  47. Belliveau,Richard S., Theatrical fog particle protection system for image projection lighting devices.
  48. Belliveau,Richard S., Theatrical fog particle protection system for image projection lighting devices.
  49. Stemmer Michael J. ; Sofsky Edward C., Two-stage air filter with multiple-layer stage and post-filter stage.
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