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Warning device to indicate the state of gases exhaustion of a gas filter retaining dangerous gases 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A62B-007/10
출원번호 US-0323069 (1989-03-10)
우선권정보 DE-3613512 (1986-04-22)
발명자 / 주소
  • Freidank Michael (Berlin DEX) Coym Jurgen (Berlin DEX) Schubert Axel (Berlin DEX)
출원인 / 주소
  • Auergesellschaft GmbH (Berlin DEX 03)
인용정보 피인용 횟수 : 35  인용 특허 : 0

초록

A warning device comprised of an electrochemical cell which detects the concentration of toxic gas that is passing through a housing holding the cell to a face mask. The cell produces a signal corresponding to the concentration level of toxic gas present. The signal is received by a threshold switch

대표청구항

A warning device for indicating the exhaustion of a separate gas filter retaining a toxic gas which device functions independently from the gas filter and comprises: a housing having an inlet and an outlet through which gas is able to enter and leave the housing; electrochemical means for directly d

이 특허를 인용한 특허 (35)

  1. Butler Bruce D. ; Warters R. David, Apparatus for induction of inhaled pharmacological agent by a pediatric patient.
  2. Eswarappa, Muniyapla, Bi/multi-directional filter cartridge and filter platform for mounting the cartridge thereon.
  3. Alvey,Jeffrey A., Breathing apparatus.
  4. Klockseth Martinus Oliver,AUX ; Jervmo Bengt Yngve Roland,AUX ; Berndtsson Goran Bertil Claes,AUX, Breathing apparatus.
  5. Kishkovich, Oleg P.; Goodwin, William M., Detection of base contaminants in gas samples.
  6. Dobbyn, Gregory J., Ductless fume hood gas monitoring and detection system.
  7. Dobbyn, Gregory J., Ductless fume hood gas monitoring and detection system.
  8. Frankel, Kevin A.; Zelinsky, Maria L., End of service life indicating systems for layered filter cartridges.
  9. Hickle Randall S. (Lubbock TX) Adams Richard B. (Lubbock TX) Pesa William A. (Wooster OH) Earsley James L. (Lubbock TX) Liles Richard A. (Lubbock TX) De Villiers James C. (Lubbock TX), Expiratory scavenging method and apparatus and oxygen control system for post anesthesia care patients.
  10. Debe Mark K. (Stillwater MN) Yuschak Gregory (Hudson WI) Parsonage Edward E. (Minneapolis MN) Poirier Richard J. (White Bear Lake MN) Miller Lowell R. (White Bear Lake MN), Exposure indicating apparatus.
  11. Debe Mark K. (Stillwater MN) Miller Lowell R. (White Bear Lake MN) Parsonage Edward E. (Minneapolis MN) Poirier Richard J. (White Bear Lake MN) Yuschak Gregory (Hudson WI), Exposure indicator with continuous alarm signal indicating multiple conditions.
  12. Poirier, Richard J.; Holmquist-Brown, Thomas W.; Rakow, Neal A., Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI).
  13. Holmquist-Brown, Thomas W.; Rakow, Neal A., Filter cartridge having cover for masking service life indicator.
  14. Rakow, Neal A.; Holmquist-Brown, Thomas W.; Poirier, Richard J., Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI).
  15. Dwyer, Gary E.; Holmquist-Brown, Thomas W.; Kanukurthy, Kiran S.; Rakow, Neal A., Filter systems including optical analyte sensors and optical readers.
  16. Larsen, Christopher Scott; Tobias, Peter; McIntosh, Andrew, Gas sensing drift compensation using gas self-referencing for end of service life indication for respirators.
  17. Hbner Hans-Jrg (Dortmund DEX), Gas work with sensing and alarm means.
  18. Ding, Frank; Quiring, Amy E; Parham, Michael, Method and apparatus for integrating chemical and environmental sensors into an air purification filter through a reusable sensor port.
  19. Trenholm,Andrew R., Method and apparatus for monitoring particles in a flowing gas.
  20. Fromage, Matthieu, Method for determining partial pressure of a gaseous constituent and regulator of breathing mask for aircraft occupant.
  21. Fukunaga, Atsuo F.; Fukunaga, Blanca M., Multilumen filter.
  22. Joffe Michael A. ; Kinkead Devon A., Performance monitoring of gas-phase air filters.
  23. Brookman, Michael J., Powered air purifying respirator system and breathing apparatus.
  24. Zdrojkowski Ronald J. ; Starr John R. ; Miceli Joseph M., Pressure sensitive flow control valve.
  25. Kishkovich Oleg P. ; Kinkead Devon A., Protection of semiconductor fabrication and similar sensitive processes.
  26. Tobias, Peter; Krafthefer, Brian, Respirator with end-of-service-life detection.
  27. Tobias, Peter; Feiner, Lynn, Respirators with a sacrificial cartridge for end of service life indication.
  28. Hoague Michael Paul, Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith.
  29. Teetzel, James W.; Lemire, Gary M.; Desrosiers, Daniel A.; Hansen, Mark A., Self-contained breathing system.
  30. Teetzel, James W.; Lemire, Gary M.; Desrosiers, Daniel A.; Hansen, Mark A., Self-contained breathing system.
  31. Teetzel, James W.; Lemire, Gary M.; Desrosiers, Daniel A.; Hansen, Mark A., Self-contained breathing system.
  32. Teetzel, James W.; Lemire, Gary M.; Desrosiers, Daniel A.; Hansen, Mark A., Self-contained breathing system.
  33. Joyce B. Palazzotto ; Harold R. Carpenter, Speech transmission adaptor for use with a respirator mask.
  34. Palazzotto,Joyce B.; Carpenter,Harold R., Speech transmission adaptor for use with a respirator mask.
  35. Kishkovich Oleg P. ; Kinkead Devon A., System for detecting base contaminants in air.
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