Patents by Inventor Robert U. Johnson

Robert U. Johnson 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-forming rib reflector
    Patent number: 6018328
    Abstract: A single surface reflector antenna and method for making same comprises a plurality of hat-shaped cross section ribs formed on the back surface of a reflector shell with flexible tooling. All antenna shell and backing structure components are comprised of triaxial weave graphite laminate layers thereby allowing the backing structure to conform precisely to the shape of the antenna shell when cured and heat cycled.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: January 25, 2000
    Assignee: Hughes Electronics Corporation
    Inventors: Michael Nolan, Miguel A. Estevez, Karl J. Sakowski, Terry R. Denardo, Clarence Douglas Reddell, Russell Watkins, John J. Sennikoff, Patrick N. Costantini, Dru D. Hartranft, Robert U. Johnson, Richard W. Gehle
  • Angle and distance measuring instrument
    Patent number: 4916822
    Abstract: An angle measuring instrument provides two straight arms connected at one end for relative pivotal movement. A telescoping assembly includes two elongated telescoping members each providing a free end. The free end of one telescoping member is pivotally connected to one arm and the free end of the other telescoping member is connected to the other arm. The telescoping members provide scales indicating the angular position between the two arms, the distance between the pivots of the free ends of the telescoping members on the arms, and a correction to be added to or subtracted from measurements along the length of the arms to establish distances from the corner which is being measured. The two arms can pivot through a full 360 degrees relative to each other, permitting the measurement of inside and outside corners of all sizes. A straight edge is removably mounted on one of the arms when measuring outside corners.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: April 17, 1990
    Inventor: Robert U. Johnson
  • Lock for bi-fold doors and the like
    Patent number: 4903747
    Abstract: A pair of bi-fold assemblies includes a lock for securing the assemblies in a closed position. The lock includes a latch bolt mounted on a panel of a first assembly, and a base plate of a second assembly includes an extending portion with an opening to receive the latch bolt.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: February 27, 1990
    Inventor: Robert U. Johnson