Patents by Inventor Franklin D. Kenyon

Franklin D. Kenyon 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).

  • Flow controller
    Patent number: 4784130
    Abstract: An oxygen flow controller for use in administering oxygen from a pressure-regulated source on demand to a patient through a nasal cannula is disclosed. A flow path is opened by a solenoid valve in response to the negative pressure created in the nasal canula by the patient's inhalation. The valve is opened for the interval needed to maintain an inhalation to exhalation ration of one-to-two, and the timing cycle and the open and closed duration times of the valve are made to automatically match the patient's breathing.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: November 15, 1988
    Assignee: The John Bunn Company
    Inventors: Franklin D. Kenyon, John W. Puckhaber