Patents by Inventor Karl Hannappel

Karl Hannappel 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: 4790976
    Abstract: Device for flushing out a lance-housing tube in a reactor pressure vessel of a boiling-water reactor and for aligning therein a dry LVD lance which partly protrudes with a pressure-tight lance passthrough from an end flange on the lance-housing tube of the reactor pressure vessel, includes a tubular housing surrounding from below a part of the lance protruding from the reactor pressure vessel and sealed by a lance protection tube, the tubular housing being fastenable to the end flange; and a piston arranged in the tubular housing underneath the sealed lance, the piston being vertically displaceable and rotatable.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: December 13, 1988
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventors: Artur Zahn, Karl Hannappel