Patents by Inventor John M. Beres

John M. Beres 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).

  • Development station having a roughened toning shell
    Patent number: 5400124
    Abstract: A development station for applying toner to an electrostatic image includes a rotatable magnetic core and a roughened sleeve on which developer moves to develop the image. The outside surface of the sleeve contains fine extrusion-formed serrations, which serrations provide a roughness for the outside surface contributing to movement of developer in response to rotation of the magnetic core.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: March 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Allen Kass, Arthur S. Kroll, Jerry E. Livadas, Susan P. Westbrook, John M. Beres
  • Image forming apparatus having a transfer drum, an image member cartridge and exposure means
    Patent number: 5255053
    Abstract: Image forming apparatus includes a laser and a laser chassis. An image member cartridge containing a photoconductive drum is receivable in the laser chassis and fixed with respect to the laser. The laser chassis and image member cartridge are movable as a unit toward a transfer drum to engage the photoconductive drum and the transfer drum. Positioning surfaces engage opposite ends of a shaft of the photoconductive drum to control positioning of the drums.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: October 19, 1993
    Assignee: Eastman Kodak Company
    Inventors: Michael H. Green, John M. Beres