Patents by Inventor John Madjarac

John Madjarac 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: 5690316
    Abstract: An improved timber wedge featuring an elongated wedge shaped body formed of natural materials such as wood or plastic or other synthetic material. The wedge shaped body is protected from hammer blows incurred during use by a removable impact protection cap mounted upon the striking end of the wedge which also reinforces the wedge body at the impact end. The cap is held to the body by a screw therethrough which friction mounts to cooperating threads in the wedge body interior or cooperatively engages a nut in an in line relationship with the screw and accessible from the side of the wedge. Releasable glue may also be used to hold the impact resistant cap to the wedge shaped body.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: November 25, 1997
    Inventor: John Madjarac