Patents by Inventor Ryan D. Liechty

Ryan D. Liechty 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).

  • Lower tie plate cast frame
    Patent number: 5282231
    Abstract: A lower tie plate for a nuclear fuel assembly is provided via an integral casting including a frame containing a first plurality of guide tube bosses in a central portion thereof, a second plurality of guide tube bosses concentric with the first plurality of guide tube bosses, and a plurality of teardrop shaped struts connecting the first and second guide tube bosses to one another and to the frame. The guide tube bosses serve to respectively directly receive individual guide tube cap screws of guide tubes of the nuclear fuel assembly. The interior top portion of the lower tie plate is configured to receive and support a debris screen.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: January 25, 1994
    Assignee: Siemens Power Corporation
    Inventors: Daniel L. Adams, Ryan D. Liechty, Roland J. DeSteese