Patents Assigned to James Frederick Chapel
  • Sterile oxygen system and replaceable filter therefore
    Patent number: 4128407
    Abstract: A system and filter apparatus therefore are described for providing substantially bacteria-free, humidified oxygen to a breathing mask or breathing tube. The filter apparatus is hydrophobic and is inserted either at or adjacent the outlet of a humidifier, in the flow line between the outlet of the humidifier and the breathing mask, or at or adjacent the breathing mask, and can be easily replaced when contaminated after a period of use.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: December 5, 1978
    Assignees: James Frederick Chapel, Homer C. Harper, III, Michael F. Coyne
    Inventor: James F. Chapel