Patents by Inventor Samuel G. Siciliano

Samuel G. Siciliano 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).

  • Cryogenic refrigerator having a regenerator with primary and secondary flow paths
    Patent number: 4846861
    Abstract: A cryogenic refrigerator is disclosed having a displacer with a regenerator therein. The regenerator opens at one end to a warm volume and at the other end to a cold volume. The opening at the cold volume includes an end hole and a plurality of radial holes. The radial holes serve as secondary passageways should the end hole become blocked with contaminants. The life of the cryogenic refrigerator is thereby greatly enchanced.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: July 11, 1989
    Assignee: Hughes Aircraft Company
    Inventors: Robert L. Berry, Samuel G. Siciliano