Patents by Inventor William E. Detwiler

William E. Detwiler 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).

  • Agitator for toner supply system having cleaning attachment
    Patent number: 5239346
    Abstract: An agitator for agitating particles such as toner particles in an electrophotographic printer includes a stirring member having an elongated longitudinal member. Vanes are attached to the longitudinal member and form a gap therebetween. When the longitudinal member is caused to move within a cavity, the vanes act to clear toner particles from an area within the cavity associated with a sensor.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: August 24, 1993
    Assignee: Xerox Corporation
    Inventors: Robert W. Corbin, William E. Detwiler, Teresa A. Kime
  • Cleaning apparatus with housing and brush biased to the same magnitude and polarity
    Patent number: 4999679
    Abstract: An apparatus which cleans a photoconductive surface having residual charged particles of opposite polarities thereon. Oppositely electrically biased cleaning brushes remove particles from the photoconductive surface with each brush being located in the chamber of a different housing with each housing electrically biased to the same magnitude and polarity as the brush located within the housing. The particles are then attracted from the cleaning brushes to electrically biased detoning rolls.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 12, 1991
    Assignee: Xerox Corporation
    Inventors: Robert W. Corbin, William E. Detwiler, Steven E. Kolb