Patents by Inventor Robert P. Bamford, deceased

Robert P. Bamford, deceased 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 and apparatus for bending relatively thin glass sheets
    Patent number: 4043782
    Abstract: A method of and apparatus for bending and tempering a relatively thin glass sheet comprising heating the glass sheet to its softening point in a heating chamber, rapidly conveying the sheet from the heating chamber to and between a pair of mold press members for immediate press shaping therebetween, and then quickly chilling the sheets below the annealing temperature range of the glass in a two-stage operation by applying a cooling medium successively under relatively high and low pressures to the opposite surfaces of the sheet.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: August 23, 1977
    Assignee: Libbey-Owens-Ford Company
    Inventors: Robert P. Bamford, deceased, Richard A. Herrington, Waldemar W. Oelke