Patents by Inventor Daniel A. DeVries

Daniel A. DeVries 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: 4327907
    Abstract: A portable exercise device used in pairs for performing various exercises such as pushups, handstands and the like which includes a metal tube having a central portion and a pair of substantially identical U-shaped portions on opposite sides of the central portion which are bent into an angularly disposed relationship to define three sides in a triangular configuration with the central and U-shaped portions providing handgrip areas covered with anti-slip material so that each of the sides are adapted for overlying engagement with a supporting surface to selectively position one of the handgrip areas in an elevated position for gripping by the hand of a user.
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: May 4, 1982
    Inventor: Daniel A. DeVries