Patents by Inventor John L. Baughman

John L. Baughman 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).

  • Method for compressor air extraction
    Patent number: 5231825
    Abstract: A method of obtaining extraction airflow from a compressor includes accelerating the extraction airflow to at least Mach 1 for obtaining choked airflow and decelerating the choked airflow to a speed less than Mach 1. An apparatus for carrying out the method includes a compressor casing having an extraction airflow port, first means for accelerating the extraction airflow channeled through the port to at least Mach 1 for obtaining choked airflow, and means for decelerating the choked airflow to a speed less than Mach 1. In an exemplary embodiment, a converging-diverging nozzle is provided for accelerating the extraction airflow to at least Mach 1 and then decelerating the choked airflow.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: August 3, 1993
    Assignee: General Electric Company
    Inventors: John L. Baughman, Rollin G. Giffin, III
  • Apparatus for compressor air extraction
    Patent number: 5155993
    Abstract: A method of obtaining extraction airflow from a compressor includes accelerating the extraction airflow to at least Mach 1 for obtaining choked airflow and decelerating the choked airflow to a speed less than Mach 1. An apparatus for carrying out the method includes a compressor casing having an extraction airflow port, first means for accelerating the extraction airflow channeled through the port to at least Mach 1 for obtaining choked airflow, and means for decelerating the choked airflow to a speed less than Mach 1. In an exemplary embodiment, a converging-diverging nozzle is provided for accelerating the extraction airflow to at least Mach 1 and then declerating the choked airflow.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: October 20, 1992
    Assignee: General Electric Company
    Inventors: John L. Baughman, Rollin G. Giffin, III