Patents by Inventor Robert Hawk

Robert Hawk 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).

  • Self-contained obstruction marker
    Patent number: 6526905
    Abstract: A self powered spheriacal marker is mounted on a power line by extending the line though opposite openings in the marker. There are two sets of opposite openings to allow the marker to be oriented so that solar cells mounted on the exterior of the marker face a southernly direction. A battery inside the marker is maintained in a charged condition by the solar cells and power led lights that flash intermittently so as to draw attention to the marker. Two halves of the marker are secured together by pin-latch fasteners that are placed around shoulders extending around the periphery of the marker.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 4, 2003
    Inventor: Robert Hawk
  • Self-contained obstruction marker
    Publication number: 20020069814
    Abstract: A self powered spherical marker is mounted on a power line by extending the line though opposite openings in the marker. There are two sets of opposite openings to allow the marker to be oriented so that solar cells mounted on the exterior of the marker face a southernly direction. A battery inside the marker is maintained in a charged condition by the solar cells and power led lights that flash intermittently so as to draw attention to the marker. Two halves of the marker are secured together by pin-latch fasteners that are placed around shoulders extending around the periphery of the marker.
    Type: Application
    Filed: December 11, 2000
    Publication date: June 13, 2002
    Inventor: Robert Hawk