Patents by Inventor Edward D. Black

Edward D. Black 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).

  • Shaping glass sheets by gravity sag bending followed by blow forming
    Patent number: 4233050
    Abstract: This invention covers shaping glass sheets to complicated shape by first preliminarily shaping said sheets to a prebent shape while supported on an outline mold, then completing the shape while cradling the prebent sheets within a thin flexible blanket of fiber glass cloth during final shaping by blow forming. This invention also covers a technique of cradling glass sheets in a flexible fiber glass blanket that is wrapped over the margin of the glass sheets to be shaped by blow forming. The margin of the blanket is reversely wrapped over a frame-like ring that prevents the marginal edge from curling and maintains the cradle in tension against the lower major surface of the glass sheet during shaping by blow forming.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: November 11, 1980
    Assignee: PPG Industries, Inc.
    Inventors: John A. Comperatore, David J. Wise, Edward D. Black
  • Apparatus for bending glass sheets to complicated curvatures using localized supplementary heating
    Patent number: 4229201
    Abstract: Apparatus for shaping a glass sheet to a complicated shape including a pair of sharply bent areas extending across its transverse dimension and a substantially spherically sagged portion intermediate the areas of sharp bending.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: October 21, 1980
    Assignee: PPG Industries, Inc.
    Inventors: John A. Comperatore, Edward D. Black, David J. Wise