Patents by Inventor Mathias A. C. Peters

Mathias A. C. Peters 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 drawing a shadow mask
    Patent number: 4090389
    Abstract: A method of drape drawing a shadow mask from a foraminous, or apertured, metal sheet that has a greater tensile in one direction than another and has edges extending in the one direction. During the drape procedure, the edges of the sheet that extend substantially in the direction in which the sheet has the greater tensile strength are allowed to slip relative to the draw ring and the pressure. As a result of this, the sheet is prevented from tearing.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: May 23, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Adrianus J. VAN Denderen, Marianus A. G. VAN DE Kerkhof, Mathias A. C. Peters, Jan VAN DER Waal