Patents by Inventor Robert D. Lenz

Robert D. Lenz 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).

  • Liquified gas storage tank overfill protection system and method
    Patent number: 5518140
    Abstract: A liquified gas tank overfill protection system for use in a tank having a hermetically sealed chamber. The overfill protection system includes a shroud mounted in the chamber in a spaced relationship to the interior side of the chamber. The shroud divides the chamber into a plurality of spatially normally communicating portions. Preferably, the shroud has a generally elongated concave downward shape.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: May 21, 1996
    Assignee: Cryenco, Inc.
    Inventors: Robert D. Lenz, Richard J. Jaeger, Glen E. McIntosh