Patents by Inventor Gilbert E. Henderson

Gilbert E. Henderson 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).

  • Dense-phase fluid cleaning system utilizing ultrasonic transducers
    Publication number: 20030062071
    Abstract: A cleaning system utilizing a pressurized dense-phase cleaning fluid includes a cleaning containment vessel having a containment-vessel interior, and a pressurization source in fluid communication with the containment-vessel interior to produce a cleaning pressure therein. There is at least one ultrasonic energy source directing ultrasonic energy into the containment-vessel interior. Where there are two ultrasonic energy sources, they desirably function at different frequencies. Each ultrasonic energy source includes a transducer housing having a transducer-housing interior, an ultrasonic transducer within the transducer-housing interior and directing a beam of ultrasonic energy through the transducer housing and into the containment-vessel interior, and a gas-pressure source in fluid communication with the transducer-housing interior. The gas-pressure source produces a pressure in the transducer-housing interior substantially equal to the cleaning pressure.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 3, 2003
    Inventors: Nelson W. Sorbo, Carl W. Townsend, Gilbert E. Henderson
  • Video cassette to optical disc dubbing device
    Patent number: D487888
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: March 30, 2004
    Inventor: Gilbert E. Henderson