Patents by Inventor Krishna M. Rajana

Krishna M. Rajana 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).

  • Acoustic reflector attachment compatible with native aircraft structure
    Patent number: 6378377
    Abstract: An ultrasonic ice detector that can be mounted directly to the skin of an aircraft includes a transducer that is coupled to the interior surface of the skin, and transmits acoustic vibrational energy through the skin. A reflector bar having a reflector surface is mounted on the interior surface of the skin at a location spaced from the transducer and is effective to reflect acoustic energy back to the transducer. The reflector bar is raised from the interior surface and preferably has a width equal to the width of the acoustic wave that is generated by the transducer at the reflector location. The transducer and reflector are non-intrusive and do not alter the aircraft skin structural integrity. The arrangement provides an accurate, responsive sensor for determining presence of ice or other contaminants on the exterior surface of the skin.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: April 30, 2002
    Assignee: Rosemount Aerospace Inc.
    Inventors: Timothy J. Matuseski, Derrick D. Hongerholt, Krishna M. Rajana
  • ACOUSTIC REFLECTOR ATTACHMENT COMPATIBLE WITH NATIVE AIRCRAFT STRUCTURE
    Publication number: 20020005070
    Abstract: An ultrasonic ice detector that can be mounted directly to the skin of an aircraft includes a transducer that is coupled to the interior surface of the skin, and transmits acoustic vibrational energy through the skin. A reflector bar having a reflector surface is mounted on the interior surface of the skin at a location spaced from the transducer and is effective to reflect acoustic energy back to the transducer. The reflector bar is raised from the interior surface and preferably has a width equal to the width of the acoustic wave that is generated by the transducer at the reflector location. The transducer and reflector are non-intrusive and do not alter the aircraft skin structural integrity. The arrangement provides an accurate, responsive sensor for determining presence of ice or other contaminants on the exterior surface of the skin.
    Type: Application
    Filed: April 23, 1999
    Publication date: January 17, 2002
    Inventors: TIMOTHY J. MATUSESKI, DERRICK D. HONGERHOLT, KRISHNA M. RAJANA