Patents by Inventor Charles R. Bristow

Charles R. Bristow 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: 4095968
    Abstract: A method of bending various sizes and shapes of flat glass sheets or plates, wherein there is created a curved glass window assembly providing a radius of curvature along a single longitudinal plane. The method includes providing a sheet of substantially flat glass of any specified thickness and mounting the glass in a frame structure disposed along the peripheral edge of the glass, the frame structure being formed from a rigid, bendable frame member and a pliable plastic or like molding positioned between the frame member, and then applying force to the rigid frame so as to cause the frame to adapt to a curvature relative to the applied force, whereby the glass therein will assume the radius curvature formed in the attached rigid frame structure. By this method, straight or flat glass may be curved, and curved glass may be given a different radius of curvature from the free state.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: June 20, 1978
    Assignee: Le Van Specialty Co. Inc.
    Inventor: Charles R. Bristow