Patents by Inventor John J. Frampton

John J. Frampton 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).

  • Screed assembly for an asphalt paving machine
    Patent number: 5397199
    Abstract: A screed assembly has a screed plate that is formed of a material having a thermal conductivity of less than about 25 W/mK, and a thermal barrier material having a thermal conductivity of less than about 0.5 W/mK that substantially covers an upper surface of the screed plate. The low thermal conductance properties of the screed plate obviate the need for auxiliary heating systems to preheat or maintain the screed plate in thermal equilibrium with a paving material.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: March 14, 1995
    Assignee: Caterpillar Paving Products Inc.
    Inventors: John J. Frampton, John A. Grassi, Karen R. Raab, Richard G. Eaton