Patents by Inventor Peter A. Mayfield

Peter A. Mayfield 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).

  • Publication number: 20050109160
    Abstract: A method of obtaining a measure of the stickiness of heated particulate solids (40) includes pouring a sample of the particulate solids (40) onto a generally horizontal support (12) and allowing it to freely form its own angle of repose. The sample is subjected to a predetermined heat and gas atmosphere regime, and the support is rotated about a generally horizontal axis to an angle (42) where the integrity of the sample (46) fails. The angular position (42) is a measure of the stickness of the particulate solid (40).
    Type: Application
    Filed: December 29, 2004
    Publication date: May 26, 2005
    Inventors: Allon Brent, Peter Mayfield, Dean Crawford, Thomas Honeyands, Andrew Shook, Damien O'Dea
  • Patent number: 6687479
    Abstract: A printing apparatus includes a guide member for directing sheets toward a transfer zone. The guide member defines a set of ribs which hold the sheets above the main surface of the guide member. Thus, any stray marking material which lands on the guide member is relatively unlikely to contact a sheet moving over the guide member.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: February 3, 2004
    Assignee: Xerox Corporation
    Inventors: Gerardo Leute, John W. D. Cooper, Ian Brailsford, Stan Alan Spencer, Roger D. Masham, Derek J. Milton, Robert G. Hall, Roderick A. Cooley, John M. Wysocky, Charles H. Tabb, Jorge A. Alvarez, Alexander C. Bisland, Peter A. Mayfield, Clifford W. Imes, IV, Peter J. M. Bloemen, Michael B. Thomson, Krzysztof J. Less, David G. Anderson
  • Publication number: 20030223787
    Abstract: A printing apparatus includes a guide member for directing sheets toward a transfer zone. The guide member defines a set of ribs which hold the sheets above the main surface of the guide member. Thus, any stray marking material which lands on the guide member is relatively unlikely to contact a sheet moving over the guide member.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Applicant: Xerox Corporation
    Inventors: Gerardo Leute, John W. D. Cooper, Ian Brailsford, Stan Alan Spencer, Roger D. Masham, Derek J. Milton, Robert G. Hall, Roderick A. Cooley, John M. Wysocky, Charles H. Tabb, Jorge A. Alvarez, Alexander C. Bisland, Peter A. Mayfield, Clifford W. Imes, Peter J. M. Bloemen, Michael B. Thomson, Krzysztof J. Less, David G. Anderson
  • Patent number: 6270075
    Abstract: A vacuum transport for a printer or copier guides a sheet through a machine, such as from a photoreceptor toward a fuser. The vacuum transport includes a partially enclosed vacuum chamber having rollers rotatably mounted therein. Portions of the rollers protrude through openings in the top of the chamber. A series of ribs are disposed between the openings. Some of the ribs extend diagonally toward one end of the width of the paper path over the transport.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 7, 2001
    Assignee: Xerox Corporation
    Inventors: John V. Korhonen, Peter A. Mayfield, Colin Partridge, Simon Muggleworth
  • Patent number: 5288062
    Abstract: An apparatus for stacking, registering and attaching one or multiple sets of electrophotographic printing machine output. The copy sheets are discharged from the machine and fall into an inclined compiling tray and are longitudinally registered by flexible, endless belts contacting the top surface of each sheet. Each sheet is then laterally shifted by a tamping mechanism which has upwardly flared baffle to corrugate the sheet as it is shifted to increase the sheet beam strength and facilitate easier and more complete registration. The discharge nip assembly which includes the flexible belts is vertically adjustable either based on discharged sheet count or in response to feedback from a stack height sensor so as to maintain optimum contact by the endless registration belt and allow for high capacity compiling. The compiling tray can also be adjustable.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: February 22, 1994
    Assignee: Xerox Corporation
    Inventors: Charles D. Rizzolo, Barry P. Mandel, Joseph J. Ferrara, Anthony T. DeSanctis, Peter A. Mayfield, Brian Whaites, Jeffrey W. Ryan
  • Patent number: 4262709
    Abstract: A depositor deposits cooked toffee into a series of advancing moulds by means of a pump which pumps the toffee through the outer nozzle of a pair of concentric nozzles. After each discharge stroke of the pump, a pulse of heated compressed air is blown through the inner nozzle to separate the deposited portion of toffee from the toffee remaining in the nozzle.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: April 21, 1981
    Assignee: Baker Perkins Holdings Limited
    Inventor: Peter A. Mayfield