Patents by Inventor James Palframan

James Palframan 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).

  • Helical conveyor systems
    Patent number: 5214934
    Abstract: A helical conveyor system in a freezing unit, wherein cold air from an evaporator (20) is fan-forced upwardly through the turns of the conveyor mesh, a primary cold air flow (26) is directed upwardly through the turns of the conveyor mesh, and a secondary flow (28) of cold air is incident on the top turn of the helix. This has the advantage that the coldest air impinges on the product while the latter is still at its warmest.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: June 1, 1993
    Assignee: York Food Systems, Inc.
    Inventors: James Palframan, James Peterson