Patents by Inventor Guy Weber

Guy Weber 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: 3980475
    Abstract: An improved electrophotographic process, where the image to be reproduced is transferred onto a photoconductive support as an image of electric charges, in which image of charges is transferred from a photoconductive support in virtual contact with a dielectric support to the dielectric support, the improvement comprising completely discharging the photoconductive support before or at the instant of separation of the dielectric support and photoconductive support. The electrophotographic reproduction apparatus of the present application comprises means for producing an electrostatic image on a dielectric support means to bring said dielectric support into virtual face-to-face contact with a photoconductive support, means to transfer the electrostatic image to the dielectric support from the photoconductive support, and means to completely discharge the photoconductive support subsequent to the transfer of charges but before the separation of the dielectric support and photoconductive support.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: September 14, 1976
    Assignee: La Cellophane
    Inventors: Pham Kim Quang, Guy Weber
  • Patent number: 3980048
    Abstract: A device and a process for the liquid development of electrostatic latent images on a sheet surface which comprises: moving sheet material having said electrostatic latent images pass a reservoir containing developing liquid and having an open upper part and a lower part with openings through which the developing liquid passes, applying said sheet by capillary action against said lower part openings, whereby the amount of developing liquid is applied as needed.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: September 14, 1976
    Assignee: La Cellophane
    Inventors: Guy Weber, Pham Kim Quang
  • Patent number: 3972714
    Abstract: Method and apparatus for electrostatic reproduction of originals by transfer of a latent charge image from an intermediate surface to an uncharged insulating surface by moving the intermediate and insulating surfaces to a virtual contact point and producing an external electric field between a pair of electrodes at the virtual contact point to ionize the space between the intermediate and insulating surfaces to transfer the charge image progressively therebetween on a line-by-line basis, instantaneously.
    Type: Grant
    Filed: March 2, 1973
    Date of Patent: August 3, 1976
    Assignee: La Cellophane
    Inventors: Guy Weber, Quang Pham Kim