Patents by Inventor John F. Ratcliffe

John F. Ratcliffe 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).

  • Apparatus for forming a fibrous and layered structure
    Patent number: 4171668
    Abstract: Apparatus for forming a proteinaceous mass into a fibrous and layered structure, including imparting a gross fibrous structure to the mass by passing the mass through a helical conveyor and layering the fibrous structure by extruding the same through an annular slot and into a radial opening, the compression and extrusion being carried out at elevated temperature to heat set the mass.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: October 23, 1979
    Assignee: Ranks Hovis McDougall Limited
    Inventor: John F. Ratcliffe
  • Method and apparatus for forming a fibrous and layered structure
    Patent number: 4127376
    Abstract: A method and apparatus for forming a proteinaceous mass into a fibrous and layered structure, including imparting a gross fibrous structure to the mass by passing the mass through a helical conveyor and layering the fibrous structure by extruding the same through a slot and changing the direction of movement of the mass as it emerges from the slot into an opening, the compression and extrusion being carried out at elevated temperature to heat set the mass.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: November 28, 1978
    Assignee: Ranks Hovis McDougall Limited
    Inventors: John F. Ratcliffe, Jeffrey G. Barker