Patents by Inventor Alan E. Delahdy

Alan E. Delahdy 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).

  • Selective scribing of materials
    Patent number: 4959112
    Abstract: The invention provides for placing a material to be scribed in a gaseous atmosphere and contacting the surface of the material with a non-cutting heated tip. The heated tip is rounded to prevent cutting and is moved relative to the material. The tip is heated during the scribing operation, either continuously at a prescribed level, or discontinuously in order to maintain the average temperature at a prescribed level.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: September 25, 1990
    Assignee: Chronar Corp.
    Inventors: Frank B. Ellis, Jr., Alan E. Delahdy, Jonathan Allen, Hermann Volltrauer