Patents by Inventor Calvin E. James, Sr.

Calvin E. James, Sr. 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: 4369966
    Abstract: A simple and versatile folding exercising apparatus which enables the user to perform a wide variety of weight training exercises. The apparatus includes an upstanding frame and a bench pivoted to the frame for movement between a laterally extended use position and an upright, compact storage position juxtaposed with the frame. The apparatus includes barbell support cradles, a rope and pulley weight pull device, a lat bar device with squat rack and chinning bar, and readily detachable devices for performing curling, sit-ups, leg lifts and head lifts.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: January 25, 1983
    Assignee: Diversified Products Corporation
    Inventors: Ira J. Silberman, Calvin E. James, Sr.