Patents by Inventor Robert A. Pyburn

Robert A. Pyburn 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: 5614338
    Abstract: A method is provided for producing a graphic for a backlit component, such as a button for an illuminated graphic display of an automobile instrument panel. The method involves a process by which molded plastic backlit buttons are manufactured without the use of hazardous chemicals or materials, and instead utilizes laser energy to produce substantially opaque regions on the button for forming a graphics image. Backlit buttons are preferably formed from a substantially transparent polymeric material in which is present pigmentation that is reactive to laser energy. A graphic image is then created on the button by selectively exposing a portion of the backlit component to laser energy. As a result, the exposed portion becomes substantially opaque while remaining portions of the backlit component remain substantially transparent. As such, the exposed and unexposed portions of the button cooperate to produce the graphic image when the button is backlit with a suitable light source.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: March 25, 1997
    Assignee: Delco Electronics Corporation
    Inventors: Robert A. Pyburn, Michael E. Fye