Patents by Inventor Charles Tabb

Charles Tabb 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).

  • Xerographic charging device having three pin arrays
    Publication number: 20060193657
    Abstract: In a xerographic printing apparatus, a scorotron places a uniform charge on a photoreceptor for forming electrostatic latent images. Three conductive pin arrays are disposed in a housing defined by sidewalls and a screen adjacent the photoreceptor. There can be provided insulative walls between adjacent pin arrays. The screen and a surface of the housing can be curved to correspond to a curvature of the photoreceptor.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 31, 2006
    Applicant: Xerox Corporation
    Inventors: Michael Zona, Alicia Hughes, Allen Thompson, Neil Frankel, Charles Tabb, Clifford Imes, George Wright, Eugene Gluszko
  • Xerographic photoreceptor thickness measuring method and apparatus
    Publication number: 20060165424
    Abstract: In a xerographic machine (10) having, a photoreceptor (110) including a photoconductive layer (112) arranged over an electrically conductive substrate (114), and a charging station (200) for applying a substantially uniform electrostatic charge to a surface (116) of the photoconductive layer (112), a method for detecting a thickness (t) of the photoconductive layer (112) is provided. The method includes: measuring an electrical property of the charging station (200); and, determining the thickness (t) of the photoconductive layer (112) from the measured electrical property.
    Type: Application
    Filed: January 26, 2005
    Publication date: July 27, 2006
    Inventors: Charles Tabb, Gerald Fletcher, Bert Peeters