Patents by Inventor Willy J. Palmans

Willy J. Palmans 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).

  • Contact heat fusing apparatus
    Patent number: 4269594
    Abstract: A unit for heat fixing xerographic images makes use of a fuser roller and a self adjusting pressure roller. The fuser roller is internally heated and it may be associated with a self adjusting cleaning roller. The preceeding elements may be combined into a unit which can be provided moreover with scraper elements and supplementary feeding rollers located downstream of the fuser and fusing rollers and which rotate at a peripheral speed exceeding that of the latter rollers.
    Type: Grant
    Filed: December 5, 1978
    Date of Patent: May 26, 1981
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Frans M. Umans, Willy G. Ceuppens, Willy J. Palmans, Robert T. Overmeer
  • Developing device for xerographic copying machines
    Patent number: 4245586
    Abstract: A xerographic developing device for depositing xerographic toner upon an image carrying medium without the use of toner carrier beads which includes an applicator roller for transferring toner from a tray towards the image carrying medium via a scraper element mounted at the exit opening of the tray. Improved regulation of the quantity of toner transferred in this manner is achieved by applying a DC-voltage potential between the applicator roller and the scraper.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: January 20, 1981
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Willy J. Palmans, William C. Waterschoot