Patents by Inventor William F. Buholtz

William F. Buholtz 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).

  • Patent number: 4326793
    Abstract: A full cantilever mounting structure for demountably removably supporting a photo-receptor drum for a laser diode printer or other similar apparatus including oppositely disposed orienting members for removably fixedly securing and orienting the drum to a fixed shaft permitting the drum to be freely rotatable about said shaft on demountable end bearings oriented to and removably secured to the fixed shaft.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: April 27, 1982
    Assignee: Burroughs Corporation
    Inventor: William F. Buholtz
  • Patent number: 4318606
    Abstract: The present invention relates to magnetic toner imaging-multiplexing techniques and apparatus wherein the number of required voltage drivers is substantially reduced. The apparatus includes a multi-pole magnet assembly surrounded by a shell-like member operatively coupled to a drive motor for creating relative motion between said magnet assembly and said shell-like member. A multiplicity of helical, highly permeable electrodes are circularly disposed around the periphery of the shell member with electrical connections to external voltage drivers through a slip-ring assembly. Magnetic imaging toner is circulated across the toner electrodes as a result of the relative motion between the shell and the magnet assembly. Field concentrating apparatus is disposed within the shell adjacent to a dielectric drum on which the intelligible image is to be produced.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: March 9, 1982
    Assignee: Burroughs Corporation
    Inventors: William F. Buholtz, Timothy R. Geis
  • Patent number: 4274361
    Abstract: Electrostatic and magnetic transfer apparatus for conducting and magnetically attracting electronically conductive toner from the surface of a dielectric drum to a secondary substrate such as plain paper wherein a fixed permanent magnet disposed within a hollow cylindrical roller located at the image transfer point within a portion of a continuous loop of semi-conductive material supplies additional attractive force between the toner and the substrate exclusively at the image transfer point which in combination with the electrostatic transfer force applied to the imaged dielectric surface of the drum by means of a voltage potential applied to the hollow cylindrical roller, produces a dense, well defined pattern of intelligence replicating what was originally applied to the dielectric surface.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: June 23, 1981
    Assignee: Burroughs Corporation
    Inventors: John R. Sanders, Richard L. Poythress, Richard E. Shultz, William F. Buholtz, Richard C. Fedder