Patents by Inventor Robert W. L. Barkovitz

Robert W. L. Barkovitz 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).

  • Keyboard percussion instrument including improved tone bar resonator
    Patent number: 7709715
    Abstract: An improved resonator for keyboard percussion instruments such as marimba, vibraphone and xylophone and instruments including such resonators are described herein. In one or more embodiments, a tubular resonator bent or formed into a smooth curve, open or stopped on one end, resonating only its natural fundamental frequency and its natural overtones with no non-harmonic resonances from a struck tone bar associated with the resonator is provided. According to one or more embodiments, the number of joints in the resonator is reduced to less than two joints.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 4, 2010
    Assignee: Malletech L.L.C.
    Inventors: Leigh Howard Stevens, Robert W. L. Barkovitz
  • KEYBOARD PERCUSSION INSTRUMENT INCLUDING IMPROVED TONE BAR RESONATOR
    Publication number: 20080105105
    Abstract: An improved resonator for keyboard percussion instruments such as marimba, vibraphone and xylophone and instruments including such resonators are described herein. In one or more embodiments, a tubular resonator bent or formed into a smooth curve, open or stopped on one end, resonating only its natural fundamental frequency and its natural overtones with no non-harmonic resonances from a struck tone bar associated with the resonator is provided. According to one or more embodiments, the number of joints in the resonator is reduced to less than two joints.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 8, 2008
    Inventors: Leigh Howard Stevens, Robert W.L. Barkovitz