Patents Represented by Attorney, Agent or Law Firm Harold Pezzner
  • Device for simulation of climbing
    Patent number: 4648593
    Abstract: An exercising device for the simulation of climbing includes a pair of side support units, each of which comprises a front leg and a back leg pivotally connected at their upper ends. The front and back legs of each pair are interconnected by a support member. A step in the form of a horizontal support platform is selectively engaged with the side support units at one of a plurality of different elevations so that the user may simulate climbing by repeatedly stepping up and down from the platform.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: March 10, 1987
    Inventor: William T. Wilkinson
  • Prosthetic knee implantation
    Patent number: 4646729
    Abstract: A prosthetic knee is implanted after cutting the femor and tibia in the proper manner with the aid of instruments which include axial alignment guides and a series of cutting jigs.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: March 3, 1987
    Assignee: Howmedica, Inc.
    Inventors: Robert V. Kenna, David S. Hungerford, Kenneth A. Krackow