Patents by Inventor Peter D. Butler

Peter D. Butler 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).

  • Method of removing pavement marking materials from asphalt surfaces
    Patent number: 4863309
    Abstract: A method of removing pavement marking materials on an asphalt surface which comprises heating the surface of the asphalt roadway in which the pavement marking materials have been installed to a temperature just below that at which the pavement marking materials will liquify using an infrared heater and then cooling the pavement marking materials to a temperature below about 100.degree. F. and then peeling off the pavement marking materials from the asphalt surface.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: September 5, 1989
    Inventors: Maxwell H. Corbin, Jr., Peter D. Butler
  • Method of installing preformed pavement materials into asphalt surfaces
    Patent number: 4854771
    Abstract: A method of installing preformed pavement marking materials on an asphalt surface involving using infrared heat to raise the temperature of the surface so that the asphalt is sufficiently softened so that preformed pavement marking materials may be pressed into said asphalt surface.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: August 8, 1989
    Inventors: Maxwell H. Corbin, Jr., Peter D. Butler