Patents by Inventor John W. Whipple

John W. Whipple 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).

  • Developer composition having improved noise signal ratio in an optical toner concentration sensing system
    Publication number: 20040146796
    Abstract: A developer composition having improved noise signal ratio in an optical toner concentration sensing system, including a toner having a first diffuse reflectivity and a carrier having a second diffuse reflectivity wherein the difference between the first diffuse reflectivity and the second diffuse reflectivity is substantially high.
    Type: Application
    Filed: August 26, 2003
    Publication date: July 29, 2004
    Applicant: Xerox Corporation
    Inventors: Eric M. Gross, Scott M. Silence, Thomas J. Budny, Richard J. Muller, Robert M. Mara, John W. Whipple, Eric S. Hamby, R. Enrique Viturro
  • Developer composition having improved noise signal ratio in an optical toner concentration sensing system
    Publication number: 20030113649
    Abstract: A developer composition having improved noise signal ratio in an optical toner concentration sensing system, including a toner having a first diffuse reflectivity and a carrier having a second diffuse reflectivity wherein the difference between the first diffuse reflectivity and the second diffuse reflectivity is substantially high.
    Type: Application
    Filed: December 12, 2001
    Publication date: June 19, 2003
    Applicant: Xerox Corporation
    Inventors: Eric M. Gross, Scott M. Silence, Thomas J. Budny, Richard J. Muller, Robert M. Mara, John W. Whipple, Eric S. Hamby, R. Enrique Viturro
  • Vacuum assisted bead pick off apparatus employing a plural level surface-hybrid air knife
    Patent number: 5379094
    Abstract: An apparatus for removing magnetic granules from a moving imaging surface in a region between a developer station and a transfer station is provided. The apparatus includes a member, interposed between the developer station and the transfer station. The member has a plurality of grooves in the exterior surface thereof. Each of the grooves have a width greater than each portion of the member between adjacent grooves. The apparatus also has a magnetic member operatively associated with the member. The magnetic member generates a magnetic field to attract the magnetic granules from the imaging surface to the member. The member and the magnetic member are adapted to move relatively to one another. The member is eccentrically mounted in a housing so that two air passageways of different dimensions are formed between the member and the housing so that the air flow in the respective air passageways are different from each other.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: January 3, 1995
    Assignee: Xerox Corporation
    Inventors: Joseph M. Wing, Lawrence R. Benedict, Bruce J. Parks, Robert A. Pictor, John D. Head, John W. Whipple, Charles M. Gardiner