Patents by Inventor Frank D. Helman

Frank D. Helman 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 registering a steel rule die and counterplate
    Patent number: 4341008
    Abstract: A method for registering and aligning a steel rule die and counterplate. The die and counterplate each have registration holes into which a semi-permanent pin is inserted to hold the die and counterplate in alignment during positioning within a reciprocating cutter.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 27, 1982
    Assignee: Atlas Steel Rule Die, Inc.
    Inventors: Herman A. Graboyes, Frank D. Helman