Patents Examined by J. L. Welsh
  • Patent number: 4591151
    Abstract: An improved torsional exercise device which allows for a graduated exercise program to build and increase the muscles of the hands, wrists, and forearms through relative rotation of handle grips against a torsion spring of varying tension and which is portable, simple in design, and inexpensive to construct.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: May 27, 1986
    Inventor: Virgil Hensley