Patents by Inventor Leigh S. Webb

Leigh S. Webb 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).

  • Patent number: 4499740
    Abstract: A freezer for individually quick freezing foodstuffs such as shrimps, diced chicken and peas, comprises a cooling tunnel (2) for precooling the foodstuff, and a freezing tunnel (3) for freezing the precooled foodstuff. The precooled foodstuff enters the freezing tunnel (3) through a hopper (12) and falls into a bath of liquid nitrogen. A rotating ribbon auger (20) lifts the foodstuff out of the liquid nitrogen and carries it through an equalization section where it remains in contact with cold nitrogen vapor. The frozen foodstuff leaves the freezing tunnel (3) through outlet (14). The ribbon auger (20) is designed to remove the foodstuff rapidly out of the liquid nitrogen and carry it slowly through the remainder of the freezing tunnel (3)--the equalization section.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: February 19, 1985
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Geoffrey I. Older, Leigh S. Webb