Patents by Inventor Willy Joseph Palmans

Willy Joseph 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).

  • Dielectrographic recording apparatus and method
    Patent number: 3986189
    Abstract: An apparatus for recording information on a dielectric material in the form of electrostatic charge patterns is provided in which a plurality of recording electrodes are provided at one side of the dielectric material, whereas a corona device which is partially screened is situated at the other side of the dielectric material. The screen is in the form of a metallic plate provided with a slit and is kept at a constant DC voltage. An electrostatic charge is built-up at the surface of the dielectric material when the recording electrodes are not energized, and vice versa.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: October 12, 1976
    Assignee: AGFA-GEVAERT N.V.
    Inventors: Jozef Antoon Van Biesen, Willy Joseph Palmans