Patents by Inventor B. Melvin Barnum

B. Melvin Barnum 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).

  • Flame failure detection method
    Patent number: 5235802
    Abstract: A dual rotor gas generator of a gas turbine generator is fired with fuel delivery based on a fuel demand signal. Actual air flow is determined by sensing the low pressure rotor speed. A ratio of the fuel demand and actual air flow is calculated. Actual fuel flow is not used. Loss of flame is detected based on a fuel/air ratio as compared to a preselected value.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: August 17, 1993
    Assignee: United Technologies Corporation
    Inventors: B. Melvin Barnum, Russell C. Bell
  • Flame failure detection
    Patent number: 5170621
    Abstract: A dual rotor gas generator of a gas turbine generator is fired with fuel delivery based on a fuel demand signal. Actual air flow is determined by sensing the low pressure rotor speed. A ratio of the fuel demand and actual air flow is calculated. Actual fuel flow is not used. Loss of flame is detected based on a fuel/air ratio as compared to a preselected value.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: December 15, 1992
    Assignee: United Technologies Corporation
    Inventors: B. Melvin Barnum, Russell C. Bell