Patents by Inventor Thomas Joseph Foster

Thomas Joseph Foster 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).

  • Electrographic development method and apparatus
    Patent number: 7561837
    Abstract: The invention relates generally to processes for electrographic image development. An electrographic development apparatus is provided wherein a film is adjacent a cylindrical toning shell and a mixture of toner and carrier is particles disposed on the cylindrical toning shell in contact with the film. The cylindrical toning shell is closest to the film at a first location, the mixture of toner and carrier particles being movable through the first location with a flow direction. A magnetic core disposed within the cylindrical toning shell offset toward the cylindrical shell such that a magnetic field strength is greater at the second location than the first location.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: July 14, 2009
    Assignee: Eastman Kodak Company
    Inventors: Edward Michael Eck, Thomas Joseph Foster
  • Electrographic development method and apparatus
    Patent number: 7120379
    Abstract: The invention relates generally to processes for electrographic image development. An electrographic development apparatus is provided wherein a film is adjacent a cylindrical toning shell and a mixture of toner and carrier is particles disposed on the cylindrical toning shell in contact with the film. The cylindrical toning shell is closest to the film at a first location, the mixture of toner and carrier particles being movable through the first location with a flow direction. A magnetic core disposed within the cylindrical toning shell offset toward the cylindrical shell such that a magnetic field strength is greater at the second location than the first location.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: October 10, 2006
    Assignee: Eastman Kodak Company
    Inventors: Edward Michael Eck, Thomas Joseph Foster