Patents by Inventor Robert L. Massey

Robert L. Massey 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: 5097790
    Abstract: A flagger gate for roadway construction sites. The flagger gate includes a base which pivotally mounts an elongated arm. The arm may be pivoted from a lowered position where the arm extends horizontally into a lane of the roadway to a raised position where the arm extends vertically. A first sign member is located on the arm near the free end thereof, and will typically be a stop sign. A second sign is located below the arm between the free end of the arm and the base, such that the sign extends towards the roadway when the arm is raised. A linkage is provided for rotating the signs during rotation of the arm. Specifically, the first sign faces traffic when the arm is lowered, but faces upwardly when the arm is raised. The second sign faces the base when the arm is lowered, but faces traffic when the arm is raised. This eliminates confusion as to which sign to obey.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: March 24, 1992
    Assignee: Graham-Migletz Enterprises, Inc.
    Inventor: Robert L. Massey