Patents by Inventor Robert D. Bonham

Robert D. Bonham 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).

  • Magnet for a development system
    Patent number: 4318607
    Abstract: An apparatus which develops a latent image by transporting developer material closely adjacent thereto. The apparatus includes a magnetic member having a magnetic portion formed integrally with a support portion.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 9, 1982
    Assignee: Xerox Corporation
    Inventors: Robert D. Bonham, Joseph Fantuzzo
  • Magnetic mixing apparatus and process
    Patent number: 4095883
    Abstract: A magnetic mixing apparatus and process for mixing magnetizable developer material for use in the development system of an electrostatographic reproducing machine. In accordance with one embodiment a blanket of developer material is magnetically divided into a plurality of widely spaced apart streams. In accordance with an alternative embodiment, the blanket of developer material is magnetically divided into a plurality of closely adjacent or touching streams having different trajectories. Preferably the streams are then directed into one or more cross-mixing devices to provide enhanced side-to-side mixing of the developer.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: June 20, 1978
    Assignee: Xerox Corporation
    Inventors: Delmer G. Parker, Robert D. Bonham