Patents by Inventor Tom Porreco

Tom Porreco 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).

  • Elongated cryogenic envelope
    Patent number: 4046407
    Abstract: An elongated cryogenic envelope is comprised of a plurality of sections each including an outer tube and a coaxial inner tube spaced therefrom by a support means. The outer tubes of each section are joined together to form a continuous outer tube. The inner tubes, however, are unjoined so that fluid can flow therebetween, but an expansion means is affixed to at least one of the inner tubes to separate the vacuum chamber from the fluid passing through the space between the inner tubes.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: September 6, 1977
    Assignee: Cryogenic Technology, Inc.
    Inventor: Tom Porreco