Patents Represented by Attorney James J. Ralabate
  • Patent number: 7580665
    Abstract: A fuser debris inhibiting system and apparatus using an impregnated cleaning web. This web is impregnated with EDTA or its salts. The web can contact the fuser member directly or can contact external heat rolls which in turn contact the fuser roll. The delivery of EDTA to the surface of the fuser member substantially inhibits the formation of contaminants thereon.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: August 25, 2009
    Assignee: Xerox Corporation
    Inventors: Alexander N. Klymachyov, Samuel Kaplan, John E. Derimiggio
  • Patent number: 7571904
    Abstract: A finishing-compiling station or structure is disclosed where marked copies of paper or other media are transported into a compiling tray for paper registration by paddle wheels or other such deflection loaded compiler drive elements. These sheets of paper after registration are then processed and finished as desired. The pressure applied by the paddle wheels is substantially constant where as prior art pressures varied depending upon the height of the paper stack. A sensor and appropriate software controller gauges the speed of the paddle wheel drive shaft and controls the height of the drive shaft from the stack and thereby equalizes the resulting pressure to a continuous fixed pressure throughout this stacking operation.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: August 11, 2009
    Assignee: Xerox Corporation
    Inventor: Henry T. Bober
  • Patent number: 7570912
    Abstract: Washers are used for a pressure roll in a fusing system of an electrophotographic system that improve the functionality and durability of the pressure roll. These washers are made up of a rigid ring section having flexible (less rigid) fingers projecting from the inner periphery of the ring. This provides a more uniform pressure to be exerted in the pressure roll and, consequently, a more uniform nip for better handling and fusing.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: August 4, 2009
    Assignee: Xerox Corporation
    Inventors: Paul M Fromm, Richard C Benton
  • Patent number: 7561834
    Abstract: A two dispenser system is used to replenish developer and toner in an electrostatic marking system. This two dispenser system replenishes toner and developer in a more accurate way since each of the dispensers are individually controlled and operated. Better quality prints and less waste is provided over extended usage periods.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: July 14, 2009
    Assignee: Xerox Corporation
    Inventor: Scott M. Silence
  • Patent number: 7556368
    Abstract: This is a phase change marking system with the ability to minimize adherence of a marking composition to a component in the system, such as an imaging member. In this manner, offset is avoided and a better image results on the paper or receiving medium. This is accomplished by using a substituted polyolefin as a release agent that is coated on the surface of the imaging member.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: July 7, 2009
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S Badesha
  • Patent number: 7549879
    Abstract: This is a modular connector used to supply electricity and air to a corona assembly. The connector has an electrical component removably positioned on an air component. When one of these components becomes inoperative, it can be detached from the other component, and the detached component replaced with new functional component. The air component is configured to remove effluents such as ozone and NOx from the corona assembly.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 23, 2009
    Assignee: Xerox Corporation
    Inventor: James D Walsh
  • Patent number: 7547007
    Abstract: A clamp for use in welding which has a unshaped configuration with a base section having two movable jaws connected to it. The jaws are spring loaded so they will widen to fit objects to be welded at least one of the jaws has cut out portions to permit the user to see the location to be welded. The jaws at their lead edges are chamfered for easy installation. A magnet is located in the base section to aid in the securing of the clamp.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: June 16, 2009
    Assignee: Xerox Corporation
    Inventors: Renato L. Pietrantoni, Wayne W. Slack, David R. Nazzaro
  • Patent number: 7537556
    Abstract: This invention provides a paper folding assembly where the thickness of the paper set stack is directly measured and will automatically determine the size of a gap located between two folder cylinders. A knife will push the set between the adjusted gap once it has been adjusted for the thickness of the set. The knife and driven nip rollers are positioned above this gap and are conveniently pushed into the gap to provide the set fold, for example, to make a booklet.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: May 26, 2009
    Assignee: Xerox Corporation
    Inventor: Henry T. Bober
  • Patent number: 7530567
    Abstract: This is a compiler tray with a Velcro® surfaced back guide enabled to be used with Birds Beak Edge Curl Suppressors to minimize up curl and down curl of sheets fed into the tray and improve Stapled Set Registration. The Velcro® is either fixed to the back guide or adjustably positioned on the back guide. The Velcro® is placed on the back guide in such a manner that the ribs and grooves of the Velcro® are at an angle significantly not parallel to the plane of the lead edge of paper sheets fed into the compiling tray.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: May 12, 2009
    Assignee: Xerox Corporation
    Inventors: Henry T. Bober, Chetan S. Keny, Peter J. Knausdorf
  • Patent number: 7527260
    Abstract: This is a paper-handling system using a motor driven frictional drive element to push a paper sheet into a compiling tray. The tray has a registration wall where a paper sheet is abutted to align a paper stack. The system uses a sensor to convey relevant information to the motor and drive element as to the location of the top paper sheet vis-à-vis the registration wall. By instructing the motor and drive element on the top sheets location, better and more consistent paper-stacking alignment is accomplished.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: May 5, 2009
    Assignee: Xerox Corporation
    Inventor: Steven Robert Moore
  • Patent number: 7526243
    Abstract: A small vibrator is connected to a cleaning blade or cleaning blade holder in an electrostatic marking system. This vibrator in a cycle out step moves the blade up and down and reduces thereby overall contact with the photoconductor surface; this reduces any noise caused by blade contact with the photoconductor surface during cycling out or down of the marking procedure.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: April 28, 2009
    Assignee: Xerox Corporation
    Inventors: Kamran U. Zaman, Stanley J. Pietrzykowski, Jr.
  • Patent number: 7516956
    Abstract: For sheet stacking trays having a lowered sheet stacking position and raised sheet feeding positions, and repositionable stack edge guides, improved visual accuracy for the repositioning of the stack edge guide for different sheet sizes is provided by automatically extending out an elongated visual indicator from the repositionable stack edge guide to closely overlay the correct corresponding stack size visual indicia from a spaced array of such indicia when the tray is in said lowered sheet stacking position, and automatically pivotally lifting this elongated visual indicator up away from any possible obstruction of the raising of the tray for sheet feeding. The indicator may further provide a reading window surrounding the correct indicia.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: April 14, 2009
    Assignee: Xerox Corporation
    Inventors: Julia Allwright, Andrew K. Balm, Rebecca Mallaband
  • Patent number: 7518376
    Abstract: This is an electronic scanning probe, preferably made up of at least two sensing elements, each sensing element substantially surrounded by reference electrodes. These sensing elements are separated at a distance that causes little or no cross-interference to take place between these sensing elements when positioned in concert with a surface of interest. Ideally, this probe is used in electrostatic marking systems where an electrostatic charge is placed onto a receiving surface.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: April 14, 2009
    Assignee: Xerox Corporation
    Inventors: Joseph A. Swift, Tyco Skinner, Michael F. Zona
  • Patent number: 7509084
    Abstract: This is an electrophotographic marking system with the ability to minimize adherence of a marking composition to a fixing component in the system, such as a fuser roll. In this manner, offset is avoided and a better image results on the paper or receiving medium. This is accomplished by using a substituted polyolefin as a release agent that is coated on the surface of the fuser roll.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: March 24, 2009
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Santokh S. Badesha
  • Patent number: 7505722
    Abstract: This is a pre-heater system especially useful in an electrostatic marking apparatus. It is used to heat the toner and paper (media) prior to the paper entering the conventional fuser station. Using this pre-heater increases fusing productivity (ppm), widens media latitude and/or extends fuser member life for a given fuser system. It also dramatically improves uniform heat transfer and paper handling problems encountered in prior art preheat fusing assemblies. The preheater is used together with the conventional fuser stations used today in electrostatic marking systems.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: March 17, 2009
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Elias Panides, Augusto E. Barton
  • Patent number: 7493067
    Abstract: This is a test procedure for detecting contaminants or a method for removing contaminants from toner to be used in an electrophotographic marking system. The method simulates the mixing and separation of contaminants that occur in an actual development system. It has been determined that contaminants in toner have tribo properties that prevent strong adherence of these contaminants to the carrier whereas purified toner has tribo properties that permit stronger adherence to the carrier. A separation procedure and method is thereby used to remove or identify contaminants.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: February 17, 2009
    Assignee: Xerox Corporation
    Inventor: Paul M. Wegman
  • Patent number: 7483667
    Abstract: Washers are used for a pressure roll in a fusing system of an electrophotographic system that improve the functionality and durability of the pressure roll. These washers are made up of a rigid ring section having flexible (less rigid) fingers projecting from the inner periphery of the ring. This provides a more uniform pressure to be exerted in the pressure roll and, consequently, a more uniform nip for better handling and fusing.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: January 27, 2009
    Assignee: Xerox Corporation
    Inventors: Paul M. Fromm, Richard C. Benton
  • Patent number: 7463004
    Abstract: An electrostatic marking system is provided having a power source(s) in each of its processing stations. A specialized power source is made up of two stepper motors in operative connection to a planetary gearset. This gearset is comprised of a sun gear, a set of planet gears supported by a carrier, and a ring gear. This power source provides a continuously variable gear ratio between each stepper motor and its load.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: December 9, 2008
    Assignee: Xerox Corporation
    Inventor: Daniel H. Burnett
  • Patent number: 7450873
    Abstract: This is a method for permitting an employee (user) authority to use his employer's marking apparatus for personal reasons. The supplier (provider) of the marking apparatus for example, Xerox Corporation, makes arrangements with the employee (with employer's approval) to use the marking apparatus for an agreed upon price; the marking apparatus having provisions for recording the employee's usage and conveying this to the provider. The provider administers the entire process and pays the employer a portion of the amount remitted by the employee user.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: November 11, 2008
    Assignee: Xerox Corporation
    Inventors: Gaurav Sharma, Rita Sherman, Christopher Jon Regruit, Robert Rolleston, Shiram Revankar
  • Patent number: D595031
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: June 30, 2009
    Inventor: Neil J. Buono