Patents by Inventor John Cappi

John Cappi 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).

  • Tri axis high frequency fiber optic acoustic sensor
    Patent number: 7463555
    Abstract: A fiber optic acoustic sensor that detects pressure waves from all incident angles features multiple mandrels orthogonally disposed to provide omni-directional sensing capability. The topology of the mandrels prevents frequency response drop-off characteristic of cylindrical sensors at wavelengths smaller than ½ the length of the acoustic cylinder. The larger operating bandwidth and omni-directional sensing capability makes this fiber optic acoustic sensor a suitable choice for a wide range of applications.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: December 9, 2008
    Assignee: Northrop Grumman Corporation
    Inventors: Dennis Bevan, Patrick Welton, Akbar Arab-Sadeghabadi, John Cappi, Liana Dang
  • Tri axis high frequency fiber optic acoustic sensor
    Publication number: 20070258331
    Abstract: A fiber optic acoustic sensor that detects pressure waves from all incident angles features multiple mandrels orthogonally disposed to provide omni-directional sensing capability. The topology of the mandrels prevents frequency response drop-off characteristic of cylindrical sensors at wavelengths smaller than ½ the length of the acoustic cylinder. The larger operating bandwidth and omni-directional sensing capability makes this fiber optic acoustic sensor a suitable choice for a wide range of applications.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Inventors: Dennis Bevan, Patrick Welton, Akbar Arab-Sadeghabadi, John Cappi, Liana Dang