Patents Represented by Attorney Peter P. Eichler
  • Patent number: 4210080
    Abstract: Liquid ink is held in the openings of a screen which is placed adjacent a grounded conductive surface. Electrical charge is delivered to selected ones of the openings so that the charged ink is drawn to the grounded conductive surface by the attractive forces therebetween. The ink can then be transferred to a record medium in image configuration.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: July 1, 1980
    Assignee: Xerox Corporation
    Inventor: Robert W. Gundlach
  • Patent number: 4199359
    Abstract: A novel screen stencil comprising a screening material coated with a photo-swellable material, as well as a method of preparing and process of using same, are disclosed.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: April 22, 1980
    Assignee: Xerox Corporation
    Inventors: John W. Weigl, Carl Brynko
  • Patent number: 4101904
    Abstract: A magnetographic imaging member is provided which includes a photoconductive layer sandwiched between a transparent conductive substrate and an overcoating of magnetic particles dispersed in a dielectric material. A magnetic latent image is formed in the member by first producing an electrostatic latent image on the premagnetized dielectric coating and developing it with a thermal radiation reflective toner. The surface is then subjected to thermal radiation which demagnetizes the pigment in the overcoating by raising it to a temperature above its Curie point except in the areas where the developed electrostatic image reflects the heat. The latent magnetic image can be repetitively developed with magnetic toner.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: July 18, 1978
    Assignee: Xerox Corporation
    Inventors: John Wolfgang Weigl, Joseph Mammino