Patents by Inventor Francesc Xavier Magrans

Francesc Xavier Magrans 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).

  • Holddown device for hardcopy apparatus
    Patent number: 6927841
    Abstract: A media holddown device a plastics vacuum guide attached to a sheet metal vacuum beam, the guide includes vacuum chambers in communication with the beam through openings to control the negative pressures applied to media of varying widths by a fan. Dividing walls are provided between the chambers to maintain the value of the negative pressure larger than a predetermined value, especially for media with conventional widths. An intermediate wall divides the guide into front and rear chambers to increase the control of media leading edges. The number, size and pattern of arrangement of openings are selected to produce desired air flow characteristics.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: August 9, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Antonio Hinojosa, Joaquim Brugue, Marc Jansa, Lluis Valles, Francesc Xavier Magrans
  • Holddown device for hardcopy apparatus
    Publication number: 20020097311
    Abstract: A media holddown device a plastics vacuum guide attached to a sheet metal vacuum beam, the guide includes vacuum chambers in communication with the beam through openings to control the negative pressures applied to media of varying widths by a fan. Dividing walls are provided between the chambers to maintain the value of the negative pressure larger than a predetermined value, especially for media with conventional widths. An intermediate wall divides the guide into front and rear chambers to increase the control of media leading edges. The number, size and pattern of arrangement of openings are selected to produce desired air flow characteristics.
    Type: Application
    Filed: August 21, 2001
    Publication date: July 25, 2002
    Inventors: Antonio Hinojosa, Joaquim Brugue, Marc Jansa, Lluis Valles, Francesc Xavier Magrans