Patents by Inventor Jeffrey W. Richarson

Jeffrey W. Richarson 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).

  • Low profile passive static control device
    Patent number: 7846279
    Abstract: A static control device suitable for printers, copiers and the like is disclosed with a manufacturing method therefor. A carrier strip of non-metallic, electrically conductive material, such as plastic, is provided with a plurality of spaced bundles of electrically conductive filaments. The bundles extend beyond the carrier strip, in close proximity to media transported along a media path. In the presence of electrical fields, the filaments induce ionization, and establish a conductive path for charges on the media to the carrier strip for grounding. A strand is attached across the bundles, for improving the structural integrity of the device.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: December 7, 2010
    Assignee: Illinois Tool Works Inc.
    Inventors: Hieyoung W. Oh, Jeffrey W. Richarson
  • Passive media separating device
    Patent number: 7036814
    Abstract: A media separator includes an elongated body having a series of formations thereon. The formations have angular surfaces for engaging a leading edge of sheets advancing therealong. As the leading edges move against the formations, separation between the sheets is enhanced.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: May 2, 2006
    Assignee: Illinois Tool Works Inc
    Inventors: Hieyoung W. Oh, Jeffrey W. Richarson
  • Low profile passive static control device
    Patent number: 6952555
    Abstract: A static control device suitable for printers, copiers and the like is disclosed with a manufacturing method therefor. A carrier strip of non-metallic, electrically conductive material, such as plastic, is provided with a plurality of spaced bundles of electrically conductive filaments. The bundles extend beyond the carrier strip, in close proximity to media transported along a media path. In the presence of electrical fields, the filaments induce ionization, and establish a conductive path for charges on the media to the carrier strip for grounding. A strand is attached across the bundles, for improving the structural integrity of the device.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: October 4, 2005
    Assignee: Illinois Tool Works Inc.
    Inventors: Hieyoung W. Oh, Jeffrey W. Richarson
  • Passive media separating device
    Publication number: 20040032077
    Abstract: A media separator includes an elongated body having a series of formations thereon. The formations have angular surfaces for engaging a leading edge of sheets advancing therealong. As the leading edges move against the formations, separation between the sheets is enhanced.
    Type: Application
    Filed: June 4, 2003
    Publication date: February 19, 2004
    Inventors: Hieyoung W. Oh, Jeffrey W. Richarson
  • Low profile passive static control device
    Publication number: 20030202830
    Abstract: A static control device suitable for printers, copiers and the like is disclosed with a manufacturing method therefor. A carrier strip of non-metallic, electrically conductive material, such as plastic, is provided with a plurality of spaced bundles of electrically conductive filaments. The bundles extend beyond the carrier strip, in close proximity to media transported along a media path. In the presence of electrical fields, the filaments induce ionization, and establish a conductive path for charges on the media to the carrier strip for grounding. A strand is attached across the bundles, for improving the structural integrity of the device.
    Type: Application
    Filed: May 12, 2003
    Publication date: October 30, 2003
    Inventors: Hieyoung W. Oh, Jeffrey W. Richarson