Patents by Inventor Donald M. Krawiec

Donald M. Krawiec 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).

  • Welded nuclear fuel grid and method
    Patent number: 4725402
    Abstract: A fuel rod support grid having a quadrangular perimeter and fuel rod compartments defined by slottedly interlocking grid-forming members with openings in register intermediate the lines of intersection of the grid-forming members to provide accessible exposed edges for small nugget welds. The edge of one of two adjacent openings in register may define a weld enhancing tab. Typically, the pairs of openings in register and their small nugget weld are at two locations intermediate the line of intersection of two grid-forming members.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: February 16, 1988
    Assignee: Combustion Engineering, Inc.
    Inventor: Donald M. Krawiec