Patents by Inventor Piet Woelcken

Piet Woelcken 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: 8302448
    Abstract: A method for cold expansion of a hole formed in a work piece. The method comprises providing a body comprising at least a cylindrically shaped part having an inner hole in axial direction of the body. The body further comprises along its circumferential direction a plurality of members which are movable in radial direction of the body, such that the outer diameter of the cylindrical part of the body can be changed.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: November 6, 2012
    Assignee: Airbus Operations SAS
    Inventors: Piet Woelcken, Eggert D. Reese, Timothy G. B. Jones