Patents by Inventor Matthew J. Bortniker

Matthew J. Bortniker 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).

  • Portable collapsible antenna
    Patent number: 5489915
    Abstract: A tubular mast has a tubular boom detachably mounted thereon, and a plurality of tubular antenna elements are detachably mounted on the boom. An elastic cord is disposed within and is connected to the boom. A further elastic cord is disposed within and is connected to the mast. Additional elastic cords are disposed within and are connected to the antenna elements. The elastic cords disposed within the mast and the antenna elements are slidably connected to the cord portion disposed within the boom. The elastic cords maintain the components in operative position and allow the components to be detached from one another to fold the antenna into collapsed position.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: February 6, 1996
    Inventor: Matthew J. Bortniker