Patents by Inventor J. Sam Thomasson

J. Sam Thomasson 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).

  • Tobacco feeder
    Patent number: 4922932
    Abstract: A tobacco feeder assembly utilizes a column of tobacco and a rotary conveyor to feed tobacco particles to a treatment zone which is maintained at above atmospheric pressure. The column of tobacco is maintained in the feed tube by control of the rotational speed of the rotary conveyor and provides an effective vapor barrier which prevents egress of the impregnating or treatment medium into the atmosphere.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: May 8, 1990
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: E. Lee Williams, Jr., J. Sam Thomasson