Patents by Inventor Johann Gruenangerl

Johann Gruenangerl 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).

  • Treadmill with cushioned surface, automatic speed control and interface to external devices
    Patent number: 5690587
    Abstract: A treadmill includes a running deck in a running area and rollers. An endless transportation belt is stretched over and guided around the rollers for moving the transportation belt in a certain direction in the running area. A cushioning layer is disposed on the running deck and a glide layer with segments covers the cushioning layer. Both of these layers are underneath the transportation belt. Another embodiment of the invention is a treadmill including rollers and an endless transportation belt stretched over and guided around the rollers. A control unit is connected to a belt drive which drives the rollers for controlling the speed of the transportation belt. A position sensor is disposed in the vicinity of the transportation belt to recognize the position of a person on the transportation belt. The position sensor is also connected to the control unit which automatically adjusts the speed of the transportation belt by sending a position signal to the control unit.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: November 25, 1997
    Inventor: Johann Gruenangerl