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Respirator cartridge end-of-service lift indicator system and method of making 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-051/10
  • B01D-053/04
  • G01N-031/10
  • G01N-031/22
출원번호 US-0869191 (1978-01-13)
발명자 / 주소
  • Jones John A. (Wilbraham MA) Ayes Adolfo V. (Hartford CT)
출원인 / 주소
  • American Optical Corporation (Southbridge MA 02)
인용정보 피인용 횟수 : 52  인용 특허 : 2

초록 ▼

Providing visual means for indicating when vapor/gas respirator cartridges have exhausted their capacity to provide respiratory protection at or below a hazardous concentration level. In combination with a vapor/gas indicator adapted to undergo a change in color with contact by an organic vapor or g

대표청구항 ▼

In a respirator cartridge having a shell within which there is supported a gas/vapor sorbent and an indicator agent selected from the group consisting of sodium dichromate and potassium dichromate characterized to undergo a change in color concomitant with exposure to concentrations of organic vapor

이 특허에 인용된 특허 (2)

  1. Shuler Kurt E. (Rancho Santa Fe CA) Schrauzer Gerhard N. (La Jolla CA), Catalyst and method for oxidizing reducing gases.
    상세보기
  2. Roberts Charles Clifton (Pittsburgh PA), Colorimetric vinyl chloride indicator.
    상세보기

이 특허를 인용한 특허 (52)

  1. Kojima Katsumi (Yokosuka JPX), Air dryer device.
    상세보기
  2. Kern John J. ; Osborne Anthony V., Apparatus for manufacturing a respirator cartridge seal.
    상세보기
  3. Leichnitz Kurt (Gross Grnau DEX), Colorimetric indicator for the indication of the exhaustion of gas filters.
    상세보기
  4. Loop, Calvin L.; Loop, Robert C.; Wolk, Bradley A.; Sullivan, Bernard Joseph, Desiccant system.
    상세보기
  5. Kishkovich, Oleg P.; Goodwin, William M., Detection of base contaminants in gas samples.
    상세보기
  6. Parham, Michael; Staubs, Amy; Ding, Yuqing, Determining effluent concentration profiles and service lives of air purifying respirator cartridges.
    상세보기
  7. Jager Hein,NLX ; Van de Voorde Martin Jozef,NLX, Device for removing one or more undesirable or dangerous substances from a gas or vapor mixture and a gas mask comprisin.
    상세보기
  8. Wallace Richard A. (7304 SW. 53rd Ave. Portland OR 97219), Electrolytic moisture indicator inside chemical cartridges.
    상세보기
  9. Frankel, Kevin A.; Thomas, J. Christopher; Checky, Melissa A.; Zelinsky, Maria L.; Goddard, Denise L., End of service life indicating systems for layered filter cartridges.
    상세보기
  10. Frankel, Kevin A.; Zelinsky, Maria L., End of service life indicating systems for layered filter cartridges.
    상세보기
  11. Mihayiov, Gueorgui Milev; Kirollos, Kirollos Salama; Tekleab, Tesfa-Michael, End of service life indicator for fluid filter.
    상세보기
  12. Tobias, Peter; Larsen, Christopher Scott, End of service life indicator for respirator.
    상세보기
  13. Boyd,Brian; Hoopis,Michael P., End-of-faucet filter.
    상세보기
  14. Ross,Catherine; Metaxatos,Paul; Koury,Steffan, End-of-faucet filter.
    상세보기
  15. Pierre Bernard CA; Serge Caron CA; Marco St-Pierre CA; Jaime Lara CA, End-of-service indicator including porous waveguide for respirator cartridge.
    상세보기
  16. Herman, Peter K.; Zoch, Roger L.; Schwartz, Scott W.; Adams, Mark P., Engine air filter replacement indication system.
    상세보기
  17. Battiato, James M.; Paolucci, Dora M., Exposure indicating device.
    상세보기
  18. Smith Dennis ; Nelson Karen ; Morton Frances G., Face mask with back-up smoke inhalation protection and method of operation.
    상세보기
  19. Elshout Robin Dean,GBX, Filter assemblies.
    상세보기
  20. Poirier, Richard J.; Holmquist-Brown, Thomas W.; Rakow, Neal A., Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI).
    상세보기
  21. Holmquist-Brown, Thomas W.; Rakow, Neal A., Filter cartridge having cover for masking service life indicator.
    상세보기
  22. Rakow, Neal A.; Holmquist-Brown, Thomas W.; Poirier, Richard J., Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI).
    상세보기
  23. Dwyer, Gary E.; Holmquist-Brown, Thomas W.; Kanukurthy, Kiran S.; Rakow, Neal A., Filter systems including optical analyte sensors and optical readers.
    상세보기
  24. Wing Richard E. (Midland MI), Filter-type respirator canister.
    상세보기
  25. Butts Lawrence D. (Wyoming MI) Niezgoda Thomas A. (Kentwood MI), Method and apparatus for sensing fluid flow volume to indicate end of filter life.
    상세보기
  26. Pinet, Éric; Duplain, Gaétan, Method and sensor for detecting a chemical substance using an optically anisotropic material.
    상세보기
  27. Croft, George T.; Hovey, Richard J., Method of a single element complete air filtering structure for a respirator filter cartridge.
    상세보기
  28. Mizuno Hisayuki (Ube JPX) Miura Masao (Ube JPX) Fukushima Hiroyuki (Ube JPX) Miyamoto Mamoru (Ichihara JPX) Ohizumi Kyouhei (Ichihara JPX) Nishimura Yoshio (Ichihara JPX), Method of foreseeing break-through in gas adsorbing apparatus.
    상세보기
  29. Kern John J. ; Osborne Anthony V., Method of manufacturing a respirator cartridge seal.
    상세보기
  30. Gardner,Paul D., Multi-agent end-of-service-life indicator for respirator filters.
    상세보기
  31. Rakow, Neal A.; Mathers, James P.; Zhang, Jun-Ying; Paolucci, Dora M.; Poirier, Richard J.; David, Moses M.; Trend, John E.; Wendland, Michael S., Organic vapor sorbent protective device with thin-film indicator.
    상세보기
  32. Rakow, Neal A.; Holmquist-Brown, Thomas W.; Linzie, Brian L.; Hulteen, John C.; Fansler, Duane D.; Poirier, Richard J.; Bharti, Vivek, Patterned chemical sensor having inert occluding layer.
    상세보기
  33. Thomas, J. Christopher; Rakow, Neal A.; Fansler, Duane D., Porous chemical indicator for gaseous media.
    상세보기
  34. Kishkovich Oleg P. ; Kinkead Devon A., Protection of semiconductor fabrication and similar sensitive processes.
    상세보기
  35. Resnick, Todd A., Protective hood respirator.
    상세보기
  36. Jones John A. (Wilbraham MA), Respirator cartridge end-of-service life indicator.
    상세보기
  37. Hoague Michael Paul, Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith.
    상세보기
  38. Lee Hoo-Kun,KRX ; Park Seong-Won,KRX ; Ro Seung-Gy,KRX ; Park Hyun-Soo,KRX, Reusable canister for a gas mask.
    상세보기
  39. Joly, Guy D.; Fansler, Duane D.; Rakow, Neal A., Sensor comprising a masking layer adhesive.
    상세보기
  40. Len Curado ; Edna M. deMedeiros, Service life indicator for respirator cartridge.
    상세보기
  41. Palacharla, Praveen Kumar; Dumpala, Madan Mohan Reddy; Patil, Swapnil Gopal; Shaik, Mehabube Rabbanee, System and method of calibration in a powered air purifying respirator.
    상세보기
  42. Vinnakota, Vinay Kumar; Palacharla, Praveen Kumar; Patil, Swapnil Gopal, System and method of oxygen deficiency warning in a powered air purifying respirator.
    상세보기
  43. Kishkovich Oleg P. ; Kinkead Devon A., System for detecting base contaminants in air.
    상세보기
  44. Verdegan, Barry M.; Thomas, Chad M.; Herman, Peter K., System for monitoring and indicating filter life.
    상세보기
  45. Verdegan, Barry M.; Thomas, Chad M.; Herman, Peter K., System for monitoring and indicating filter life.
    상세보기
  46. Parham, Michael; Ding, Yuquing, Systems and methods for determining filter service lives.
    상세보기
  47. Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
    상세보기
  48. Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
    상세보기
  49. Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
    상세보기
  50. Giordano, Edward C.; Graves, Thomas W.; Jennings, James M.; Vander Berg, Mark; Storer, William James A.; Gibbs, Douglas R.; Lonsinger, Douglas A., Water treatment device with volumetric and time monitoring features.
    상세보기
  51. Giordano, Edward C.; Graves, Thomas W.; Jennings, James M.; Vander Berg, Mark; Storer, William James A.; Gibbs, Douglas R.; Lonsinger, Douglas A., Water treatment device with volumetric and time monitoring features.
    상세보기
  52. Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric monitoring features.
    상세보기

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