Patents by Inventor J. Bert Bunnell

J. Bert Bunnell 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).

  • Variable flow and pressure ventilation system
    Patent number: 6279574
    Abstract: A ventilation system supplies a gas mixture that is humidified and heated through a proportional valve which is a fail closed and normally closed servo control valve positioned proximate a patient. The proportional valve is operated by a controller that regulates the pressure and the mode (e.g., high frequency, normal respiration, combinations) gas is delivered to the patient through a nozzle connected to the endotracheal tube. The nozzle has an exhaust connected to it and a pressure sensor through a pressure sensing port. The exhaust is a capped corrugated tube that is heated and perforated to allow air to escape, to muffle gas and respiration noises, and to trap moisture.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: August 28, 2001
    Assignee: Bunnell, Incorporated
    Inventors: Peter Richardson, Jeffrey L. Orth, J. Bert Bunnell
  • Apparatus and method for assisting respiration
    Patent number: 4481944
    Abstract: Apparatus and method for assisting a person's respiration by means of application of a series of high pressure air pulses to the person. The frequency of the pulses is varied over some range of frequencies to ensure that at least during some portion of the time, air pulses are applied to the person at the natural or resonant frequency of the person's respiratory system.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: November 13, 1984
    Assignee: Bunnell Life Systems, Inc.
    Inventor: J. Bert Bunnell
  • Apparatus and method for delivering medication to patient's respiratory system
    Patent number: 4471773
    Abstract: Apparatus and method are disclosed for delivering medication into the respiratory system of a person. The medication to be delivered is nebulized and supplied, with a series of gas pulses, to a person's respiratory system. The frequency rate of the pulses varies over a range which is broad enough to encompass the natural or resonant frequencies of the person's respiratory system.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: September 18, 1984
    Assignee: Bunnell Life System, Inc.
    Inventors: J. Bert Bunnell, Chris G. Faddis