Patents by Inventor Michael J. Amann

Michael J. Amann 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: 4629185
    Abstract: An exercise device has a pair of main hydraulic cylinders mounted in gimbals in a framework with hand grips attached to the distal ends of the cylinder rods. Resistance to movements of the rods is provided by an adjustable flow valve connected between the ports of the cylinders. Auxiliary hydraulic cylinders are provided connected between the framework and main cylinders to resist movements thereof in the vertical and horizontal directions. A chair is attached to the framework which permits the user to grasp the hand grips during exercise.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: December 16, 1986
    Inventor: Michael J. Amann