Patents by Inventor Donald L. Gammon

Donald L. Gammon 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).

  • Exercise device
    Patent number: 5372558
    Abstract: An exercise apparatus for strengthening the muscles of the upper body and arms includes a handle means, a connecting means, and a bias means or counterweight system. The connecting means is telescopically positioned within the handle means. The bias means, or counterweight system, provides the resistive force desired during a work-out period.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: December 13, 1994
    Inventors: Deborah A. Perry, Donald L. Gammon
  • Exercise device
    Patent number: 5284458
    Abstract: An exercise apparatus for strengthening the muscles of the upper body and arms includes a handle means, a connecting means, and a bias means or counterweight system. The connecting means is telescopically positioned within the handle means. The bias means, or counterweight system, provides the resistive force desired during a work-out period.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: February 8, 1994
    Inventors: Deborah A. Perry, Donald L. Gammon