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Flow meter 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01F-001/22
출원번호 US-0614329 (1975-09-17)
발명자 / 주소
  • Billette Richard J. (Dublin CA) Zias Arthur R. (Los Altos CA)
출원인 / 주소
  • National Semiconductor Corporation (Santa Clara CA 02)
인용정보 피인용 횟수 : 67  인용 특허 : 0

초록 ▼

A flow meter includes a variable area obstruction mounted in a conduit and a differential pressure transducer having its two ports mounted on opposite sides of the obstruction in fluid communication with the fluid flowing through the conduit. The variable area obstruction is formed of one or more fl

대표청구항 ▼

A flow meter comprising: a. transducer means for sensing a pressure differential between a first port thereof and a second port thereof, b. a conduit with said first port of said transducer means connected at a first location in said conduit and in fluid communication with fluid flowing therethrough

이 특허를 인용한 특허 (67)

  1. Michael Berthon-Jones AU; Steven Paul Farrugia AU, Administration of CPAP treatment pressure in presence of APNEA.
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  2. Berthon-Jones, Michael; Farrugia, Steven Paul, Administration of CPAP treatment pressure in presence of apnea.
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  3. Berthon-Jones, Michael; Farrugia, Steven Paul, Administration of CPAP treatment pressure in presence of apnea.
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  4. Nugent,Dale Alan; Kielb,John Allan; Litecky,Mark Daniel, Apparatus for controlling and metering fluid flow.
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  5. Barton John Kenyon GB; Dion Charles Chewe Martin AU, Apparatus for supplying breathable gas.
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  6. Kenyon Barton John,AUX, Apparatus for varying the flow area of a conduit.
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  7. Berthon-Jones, Michael, Assisted ventilation to match patient respiratory need.
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  8. Berthon-Jones, Michael, Assisted ventilation to match patient respiratory need.
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  9. Surjadi Hary Soesanto,AUX ; Finn Shane Darren,AUX ; Colla Gregory Alan,AUX, Auto-calibration of pressure transducer offset.
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  10. Pennino, Lorenzo, Carbon dioxide stripping urea plant with a natural-circulation synthesis loop and a method for retrofitting such plant.
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  11. Calluaud Michel,AUX, Control of delivery pressure in CPAP treatment or assisted respiration.
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  12. Berthon-Jones Michael,AUX, Determination of leak and respiratory airflow.
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  13. Berthon-Jones Michael,AUX, Determination of leak and respiratory airflow.
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  14. Berthon-Jones Michael,AUX, Determination of patency of airway.
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  15. Berthon Jones,Michael, Determination of patency of the airway.
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  16. Berthon-Jones, Michael, Determination of patency of the airway.
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  17. Berthon-Jones Michael,AUX, Determination of the occurrence of an apnea.
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  18. Berthon-Jones, Michael, Distinguishing between closed and open airway apneas and treating patients accordingly.
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  19. Berthon-Jones, Michael, Distinguishing between closed and open airway apneas and treating patients accordingly.
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  20. Berthon-Jones, Michael, Distinguishing between closed and open airway apneas and treating patients accordingly.
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  21. Wiedmann, Isaac M.; Goldschmidt, Troy A., Electronic fluid dispensing apparatus and related method.
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  22. Belke,Brad; MacArthur,Thomas; Hurford,Jack, Electronic gas flow measurement and recording device.
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  23. Jonte,Patrick, Flow compensated control valve.
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  24. Farrugia Steven Paul,AUX ; Finn Shane Darren,AUX, Flow estimation and compensation of flow-induced pressure swings in CPAP treatment and assisted respiration.
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  25. Boulanger, Michael P.; Grewell, Bruce K., Flow meter.
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  26. Boulanger, Michael P.; Grewell, Bruce K., Flow meter.
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  27. Boulanger, Michael P.; Grewell, Bruce K., Flow meter.
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  28. Cewers, Göran, Flow restrictor and method for reducing resistance of a flow.
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  29. Cewers, Göran, Flow restrictor and method for reducing resistance of a flow.
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  30. Silverwater Bernard (Plainview NY), Flow sensing device.
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  31. Silverwater Bernard F. (Plainview NY), Flow sensing device.
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  32. Goran Cewers SE; Thomas Laurell SE; Johan Drott SE, Fluid flow meter.
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  33. Stupecky Josef (Irvine CA), Gas flow meter housing.
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  34. Brydon John William Ernest,AUX ; Willson Grant,AUX, Inspiratory duration in CPAP or assisted respiration treatment.
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  35. Berthon Jones,Michael, Method and apparatus for determining instantaneous inspired volume of a subject during ventilatory assistance.
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  36. Berthon-Jones, Michael, Method and apparatus for determining instantaneous leak during ventilatory assistance.
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  37. Berthon-Jones, Michael, Method and apparatus for providing ventilatory assistance.
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  38. Berthon-Jones, Michael, Method and apparatus for providing ventilatory assistance.
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  39. Berthon-Jones, Michael, Method and apparatus for providing ventilatory assistance.
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  40. Sullivan, Colin Edward; Lynch, Christopher, Method and apparatus useful in the diagnosis of obstructive sleep apnea of a patient.
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  41. Sullivan,Colin Edward; Lynch,Christopher, Method and apparatus useful in the diagnosis of obstructive sleep apnea of a patient.
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  42. Sullivan,Colin Edward; Lynch,Christopher, Method and apparatus useful in the diagnosis of obstructive sleep apnea of a patient.
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  43. Djebali, Karim, Method for monitoring the change in state of a valve by measuring pressure.
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  44. MacDonald John J. ; Richard Ronald F., Method for providing respiratory airway support pressure.
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  45. Mrazek Franklin C. (Hickory Hills IL) Smaga John A. (Lemont IL) Battles James E. (Oak Forest IL), Method for uniformly distributing carbon flakes in a positive electrode, the electrode made thereby and compositions.
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  46. Berthon-Jones, Michael, Methods and apparatus for determining instantaneous elastic recoil and assistance pressure during ventilatory support.
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  47. Brydon John William Ernest,AUX ; Piccione Patrick Michael, Monitoring of oro-nasal respiration.
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  48. Colla Gregory Alan,AUX ; Brydon John William Ernest,AUX, Monitoring the occurrence of apneic and hypopneic arousals.
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  49. Gregory Alan Colla AU; John William Ernest Brydon AU, Monitoring the occurrence of apneic and hypopneic arousals.
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  50. Rosenbaum, Amir; Chen, Pilun Alan, Pipe adapter for adjusting the flow past a sensor.
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  51. DeVries Douglas F. ; Cegielski Michael J. ; Graves ; Jr. Warner V. ; Williams Malcolm R. ; Holmes Michael B., Portable drag compressor powered mechanical ventilator.
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  52. DeVries Douglas F. ; Cegielski Michael J. ; Graves ; Jr. Warner V. ; Williams Malcolm R. ; Holmes Michael B., Portable drag compressor powered mechanical ventilator.
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  53. DeVries, Douglas F.; Cegielski, Michael J.; Graves, Jr., Warner V.; Williams, Malcolm R.; Holmes, Michael B., Portable drag compressor powered mechanical ventilator.
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  54. DeVries, Douglas F.; Cegielski, Michael J.; Graves, Jr., Warner V.; Williams, Malcolm R.; Holmes, Michael B., Portable drag compressor powered mechanical ventilator.
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  55. DeVries, Douglas F.; Cegielski, Michael J.; Graves, Jr., Warner V.; Williams, Malcolm R.; Holmes, Michael B., Portable drag compressor powered mechanical ventilator.
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  56. DeVries,Douglas F.; Cegielski,Michael J.; Graves, Jr.,Warner V.; Williams,Malcolm R.; Holmes,Michael B., Portable drag compressor powered mechanical ventilator.
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  57. Brydon John William Ernest,AUX ; Wickham Peter John Deacon,AUX ; Bachak Miroslav,AUX ; Hollis Shane Douglas,AUX, Pressure control in CPAP treatment or assisted respiration.
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  58. Brydon, John William Ernest; Wickham, Peter John Deacon; Bachak, Miroslav; Hollis, Shane Douglas, Pressure control in CPAP treatment or assisted respiration.
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  59. Fiorenza Anthony Joseph ; MacDonald John Judson, Respiratory ventilator with automatic flow calibration.
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  60. Calluaud Michel,AUX ; Yerbury Victor,AUX, Substance delivery apparatus.
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  61. Abramson, Michael T., System and method for alleviating sleep apnea.
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  62. Abramson, Michael T., System and method for alleviating sleep apnea.
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  63. Berkcan, Ertugrul; Klitzke, Michael; Chen, Nannan; Chen, Cheng-Po; Lin, Yizhen, Systems and methods for hybrid flow sensing.
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  64. Veilleux, Jr., Leo, Turbine starter valve.
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  65. Stupecky Josef (Irvine CA), Variable area obstruction gas flow meter.
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  66. Stupecky Josef (Irvine CA), Variable area obstruction gas flow meter.
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  67. Osborn ; John J., Variable orifice gas flow sensing head.
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