Patents by Inventor Robert V. Jeral

Robert V. Jeral 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).

  • Transverse heat-sealing apparatus for continuous shrink film packaging
    Patent number: 5475964
    Abstract: An apparatus which produces consistent transverse seals in a continuous shrink film packaging operation to package trays is disclosed. The seals are consistent as a result of constant sealing dwell-time, and are also consistently positioned with respect to the trays. Neat, leak-free packages are produced after shrinking. The apparatus is particularly useful for packaging trays of moisture-containing food products such as chicken parts.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: December 19, 1995
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: Frederick H. Fiesser, Robert V. Jeral