Patents by Inventor John D. Bost

John D. Bost 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 for making continuous foam glass product
    Patent number: 4124365
    Abstract: A continuous process for the manufacture of cellular ceramic product. Ceramic feed material is transported successively through a preheat kiln section, through a foaming section whereat foaming agent mixed with the ceramic feed material is activated, and into a drawing kiln section. An elongate hollow product can be formed by drawing the foamed ceramic while soft around and past a hollow mandrel to form an elongate hollow cylindrical member.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: November 7, 1978
    Inventors: Tudor Williams, John D. Bost
  • Method and apparatus for making continuous foam glass product
    Patent number: 4038063
    Abstract: A continuous process for the manufacture of cellular ceramic product. Ceramic feed material is transported successively through a preheat kiln section, through a foaming section whereat foaming agent mixed with the ceramic feed material is activated, and into a drawing kiln section. An elongate hollow product can be formed by drawing the foamed ceramic while soft around and past a hollow mandrel to form an elongate hollow cylindrical member.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: July 26, 1977
    Assignee: E. C. P., Inc.
    Inventors: Tudor Williams, John D. Bost