Patents by Inventor Eugene F. Livesay

Eugene F. Livesay 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 threshing of tobacco
    Patent number: 3970091
    Abstract: A process is disclosed for separating tobacco stems from tobacco leaves which comprises freezing the leaves, subjecting them to flexing to break the lamina free from the stems, and then separating the stems from the lamina. Generally, it is preferable to freeze the tobacco leaves, at a temperature between about 0.degree.C. and -210.degree.C., and to flex the frozen leaves as gently as possible to leave the stem unbroken.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: July 20, 1976
    Assignee: Brown & Williamson Tobacco Corporation
    Inventors: Jon F. Banks, Eugene F. Livesay, Reynold W. Martin