Patents by Inventor Fred De Lorenzo

Fred De Lorenzo 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).

  • Motorized variable speed treadmill
    Patent number: 4502679
    Abstract: A motor driven treadmill having a speed control operated by the user and an elevation control operated by the user so that the user can vary the speed and the inclination of the treadmill as desired both at the start and during exercise. Spaced elevation units carried at one end of the treadmill frame with lead screws therein driven in synchronism by an electric motor, with limit controls for raising and lowering. A speed control with a pulley unit carried on a translating rod moved by the patient, and a brake mechanism for holding the translating rod in the position selected by the patient, thereby maintaining the desired speed.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: March 5, 1985
    Inventor: Fred De Lorenzo
  • Treadmill
    Patent number: D299258
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: January 3, 1989
    Inventor: Fred De Lorenzo