Patents by Inventor Adrien J. Boisvert

Adrien J. Boisvert 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).

  • Patent number: 4206682
    Abstract: A teaching aid for musicians has a circular disc eccentrically mounted on a motor-driven shaft which is rotatable at a constant, selected speed. The peripheral edge of the disc is eccentrically disposed with respect to the longitudinal axis of the shaft and portions of that edge provide a visual indication of musical rhythm or tempo as the disc rotates. A sounding device is associated with the disc to beat out time and augment the visual indication of tempo with an audible, repetitive sound.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: June 10, 1980
    Inventor: Adrien J. Boisvert