Patents by Inventor James F. Chapel

James F. Chapel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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