Patents by Inventor Michael D. Wallisch

Michael D. Wallisch 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).

  • Triceps pyramid exerciser
    Patent number: 5230684
    Abstract: A portable, lightweight and hand-held triceps muscle exerciser has a base with a flat lower surface and a pair of arms extending upwardly therefrom and joined together to form a structure having an isosceles triangle shape. Grips are provided on each arm intermediate their ends. The arms extend from the base at an angle of about 35.degree..
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: July 27, 1993
    Assignee: Hannibal Fitness Products, Inc.
    Inventor: Michael D. Wallisch
  • Wrist exercise device
    Patent number: 4770409
    Abstract: A wrist exercise device includes a figure eight shaped housing with circular portions each having an annular channel therein. An arcuate slide is positioned within each channel and a grip handle extends across the inner area of each circular portion and is connected to one of the arcuate slides. A stop is positioned in each channel adjacent one end of each slide. A spring is positioned in each channel and extends between the stop and the other end of each arcuate slide.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: September 13, 1988
    Inventor: Michael D. Wallisch
  • Triceps exerciser
    Patent number: D339836
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: September 28, 1993
    Assignee: Hannibal Fitness Products, Inc.
    Inventor: Michael D. Wallisch