Patents by Inventor Michael J. Trabbic

Michael J. Trabbic 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).

  • Variable resistance treadmill for simultaneously simulating a rolling and sliding resistance, and a moving inertia
    Patent number: 6287240
    Abstract: The present invention is an exercise treadmill with included weighted plates. The treadmill is essentially a manual treadmill in which the user pushes or pulls on the treadmill to activate it. To operate it, one pushes against a stationary and adjustable hand rail or platform or pulls on a bar or body harness connected to a cable. The walking surface is a belt track similar to conventional treadmills but wider and longer. In such a manner, the user is provided with a system to transfer force from arms or torso (by pushing or pulling) to the feet, to the belt track, to the spindle and shaft, and thereon to the weights and rollers.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: September 11, 2001
    Inventor: Michael J. Trabbic