Patents by Inventor Edmund R. Michalik

Edmund R. Michalik 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: 4057184
    Abstract: Pieces of glass are scored using a scoring wheel having a major radius (R.sub.1) and an arcuate scoring surface (R.sub.2) forced against the piece at a predetermined pressure. Thereafter, the score is opened by applying heat to the score and/or a bending moment about the score.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: November 8, 1977
    Assignee: PPG Industries, Inc.
    Inventor: Edmund R. Michalik