Patents by Inventor Stephen E. Stewart

Stephen E. Stewart 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).

  • Exit shaft dampening device to improve print quality
    Patent number: 8210516
    Abstract: The present invention includes a damping device for a media feed mechanism for a peripheral device having a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 3, 2012
    Assignee: Lexmark International, Inc.
    Inventors: Larry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart
  • Exit Shaft Dampening Device to Improve Print Quality
    Publication number: 20110298177
    Abstract: The present invention includes a damping device for a media feed mechanism for a peripheral device having a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
    Type: Application
    Filed: August 11, 2011
    Publication date: December 8, 2011
    Inventors: Larry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart
  • Exit shaft damping device to improve print quality
    Patent number: 8011658
    Abstract: A damping device for a media feed mechanism for a peripheral device includes a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 6, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Larry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart
  • Exit shaft dampening device to improve print quality
    Patent number: 7712740
    Abstract: The present invention includes a damping device for a media feed mechanism for a peripheral device having a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: May 11, 2010
    Assignee: Lexmark International, Inc.
    Inventors: Larry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart
  • Exit Shaft Dampening Device to Improve Print Quality
    Publication number: 20090174137
    Abstract: The present invention includes a damping device for a media feed mechanism for a peripheral device having a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and the feed shaft to create a damping force on the damping hub. In another embodiment damping is provided by a brake structure engaging said damping hub. In yet another embodiment, a brake structure is pivotably mounted.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 9, 2009
    Applicant: LEXMARK INTERNATIONAL, INC.
    Inventors: Larry W. Acton, William M. Connors, Walter K. Cousins, Stephen E. Stewart