Patents by Inventor Robert J. Dances

Robert J. Dances 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).

  • Glass substrate printed wiring board printhead for electric paper
    Patent number: 6778198
    Abstract: A glass substrate printed wiring board is used as the printhead for electric paper. Printing electrodes are formed at the edge of the glass substrate. Signals are generated by a driver circuit and conducted by traces to the electrodes to generate an electric field to rotate the bichromal rotating elements of the electric paper to form black or white pixels.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: Robert J. Dances
  • Method and apparatus for deposition of solder paste for surface mount components on a printed wiring board
    Patent number: 6659328
    Abstract: A method and apparatus for depositing solder paste on a printed wiring board has a stencil with a pattern of multiple apertures. The pattern aligns with a through-hole in the printed wiring board when the stencil is in physical contact with the printed wiring board. A squeegee arrangement applies solder paste through the multiple apertures in the stencil through the through-hole of the printed wiring board to the upper surface of the printed wiring board for securely mounting electronic components to the upper surface of the printed wiring board, for providing a thermal path for the heat sinks of the electronic components and for providing a low inductance electrical path to ground for the electrical components.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: December 9, 2003
    Assignee: Xerox Corporation
    Inventor: Robert J. Dances
  • Glass substrate printed wiring board printhead for electric paper
    Publication number: 20030137477
    Abstract: A glass substrate printed wiring board is used as the printhead for electric paper. Printing electrodes are formed at the edge of the glass substrate. Signals are generated by a driver circuit and conducted by traces to the electrodes to generate an electric field to rotate the bichromal rotating elements of the electric paper to form black or white pixels.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 24, 2003
    Applicant: Xerox Corporation
    Inventor: Robert J. Dances
  • Method and apparatus for deposition of solder paste for surface mount components on a printed wiring board
    Publication number: 20030111518
    Abstract: A method and apparatus for depositing solder paste on a printed wiring board has a stencil with a pattern of multiple apertures. The pattern aligns with a through-hole in the printed wiring board when the stencil is in physical contact with the printed wiring board. A squeegee arrangement applies solder paste through the multiple apertures in the stencil through the through-hole of the printed wiring board to the upper surface of the printed wiring board for securely mounting electronic components to the upper surface of the printed wiring board, for providing a thermal path for the heat sinks of the electronic components and for providing a low inductance electrical path to ground for the electrical components.
    Type: Application
    Filed: December 18, 2001
    Publication date: June 19, 2003
    Applicant: Xerox Corporation
    Inventor: Robert J. Dances
  • Low impedance / high density connectivity of surface mount components on a printed wiring board
    Publication number: 20030089522
    Abstract: A surface mounted component and a via share the same pad on the surface of a multilayered printed wiring board to increase the density of surface mounted components on the surface and to reduce the impedance between the surface mounted component and the via.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 15, 2003
    Applicant: Xerox Corporation
    Inventor: Robert J. Dances