Patents by Inventor Jon E. Fagerstrom

Jon E. Fagerstrom 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: 5394775
    Abstract: A precision tuning tool for use in tuning a tunable lug rotatably mounted on a musical drum includes an elongated handle, a torque applying mechanism engageable with the lug for applying torque to the lug so as to tune the lug by pivoting the elongated handle relative thereto, a torque calibrating mechanism mounted to the elongated handle for defining a desired preset amount of torque to be applied to the lug by the torque applying mechanism, a preset torque indicating mechanism mounted to the elongated handle and mounting and supporting the torque applying mechanism adjacent to one end of the elongated handle and, in response to application of torque to the lug by the torque applying mechanism, being operable for producing an indication when the desired preset amount of torque has been applied to the lug, and a biasing mechanism mounted to the elongated tubular member and to the torque calibrating mechanism for applying a desired level of biasing force to the preset torque indicating mechanism in response to
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: March 7, 1995
    Inventor: Jon E. Fagerstrom