Patents by Inventor Craig Hopper

Craig Hopper 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: 7420703
    Abstract: A system and method for flipping a media sheet. The novel system (10) includes a first mechanism (12) for receiving and holding a media sheet (16) and a second mechanism (118) for rotating the first mechanism (12) about an axis parallel to a transverse axis of the media sheet (16). In an illustrative embodiment, the first mechanism (12) is comprised of a predetermined number of slots (14), each slot (14) adapted to receive and hold a media sheet (16). Inversion of a media sheet (16) is accomplished by inputting a sheet (16) with a leading edge and a trailing edge into a slot at an input position (18), rotating the first mechanism (12) until the slot is at an output position (20), and outputting the sheet (16) with the former trailing edge now leading.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: September 2, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jeffrey C. Madsen, Robert Jewell, Craig Hopper
  • Patent number: 7192026
    Abstract: This invention relates to a duplexer, comprising; a media input nip, an auxiliary roller nip located downstream of the media input nip such that the auxiliary roller nip comprises an auxiliary drive roller that exhibits slippage so that the auxiliary roller nip maintains constant contact with a sheet of media to be duplexed, a backstop located downstream from the auxiliary roller nip, and a media output nip located adjacent to the auxiliary roller nip.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: March 20, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Craig Hopper
  • Patent number: 6983697
    Abstract: An intermediate transfer member is disengaged from an impression drum. Color layers are applied to the intermediate transfer member. A sheet media is transported between the intermediate transfer member and the impression drum while the intermediate transfer member and the impression drum are disengaged. The intermediate transfer member is engaged with the impression drum. Another sheet media is transported between the intermediate transfer member and the impression drum. The color layers are transferred from the intermediate transfer member onto the sheet media.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 10, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Craig Hopper, Robert W. Jewell, Jeffrey C. Madsen, Alfred D. Kirby
  • Patent number: 6971647
    Abstract: In one embodiment, an image forming device is provided that includes a media path configured to carry print media through the image forming device, an alignment mechanism including a plurality of alignment walls, and an image forming mechanism configured to form an image on the aligned print media received from the alignment mechanism. The alignment mechanism can be dynamically configurable to align the print media against a selected alignment wall from the plurality of alignment walls as the print media is carried along the media path.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: December 6, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert W. Jewell, Craig Hopper
  • Publication number: 20050127599
    Abstract: This invention relates to a duplexer, comprising; a media input nip, an auxiliary roller nip located downstream of the media input nip such that the auxiliary roller nip comprises an auxiliary drive roller that exhibits slippage so that the auxiliary roller nip maintains constant contact with a sheet of media to be duplexed, a backstop located downstream from the auxiliary roller nip, and a media output nip located adjacent to the auxiliary roller nip.
    Type: Application
    Filed: December 15, 2003
    Publication date: June 16, 2005
    Inventor: Craig Hopper
  • Publication number: 20050120895
    Abstract: An intermediate transfer member is disengaged from an impression drum. Color layers are applied to the intermediate transfer member. A sheet media is transported between the intermediate transfer member and the impression drum while the intermediate transfer member and the impression drum are disengaged. The intermediate transfer member is engaged with the impression drum. Another sheet media is transported between the intermediate transfer member and the impression drum. The color layers are transferred from the intermediate transfer member onto the sheet media.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Inventors: Craig Hopper, Robert Jewell, Jeffrey Madsen, Alfred Kirby
  • Publication number: 20050035538
    Abstract: In one embodiment, an image forming device is provided that includes a media path configured to carry print media through the image forming device, an alignment mechanism including a plurality of alignment walls, and an image forming mechanism configured to form an image on the aligned print media received from the alignment mechanism. The alignment mechanism can be dynamically configurable to align the print media against a selected alignment wall from the plurality of alignment walls as the print media is carried along the media path.
    Type: Application
    Filed: July 22, 2003
    Publication date: February 17, 2005
    Inventors: Robert Jewell, Craig Hopper
  • Publication number: 20040208679
    Abstract: A system and method for flipping a media sheet. The novel system (10) includes a first mechanism (12) for receiving and holding a media sheet (16) and a second mechanism (118) for rotating the first mechanism (12) about an axis parallel to a transverse axis of the media sheet (16). In an illustrative embodiment, the first mechanism (12) is comprised of a predetermined number of slots (14), each slot (14) adapted to receive and hold a media sheet (16). Inversion of a media sheet (16) is accomplished by inputting a sheet (16) with a leading edge and a trailing edge into a slot at an input position (18), rotating the first mechanism (12) until the slot is at an output position (20), and outputting the sheet (16) with the former trailing edge now leading.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 21, 2004
    Inventors: Jeffrey C. Madsen, Robert Jewell, Craig Hopper