Patents by Inventor Christopher Liston

Christopher Liston 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).

  • Patent number: 10746615
    Abstract: A system and method for magnetizing a ferromagnetic element is disclosed. Electrodes are positioned on opposite surfaces of the ferromagnetic element and a current is applied to the electrodes, resulting in the formation of a magnetically conditioned region on the ferromagnetic element. Magnetic field sensors may be placed proximate the magnetically conditioned region. Output signals from the magnetic field sensors may be indicative of a load or torque applied to the ferromagnetic element.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 18, 2020
    Assignee: Methode Electronics, Inc.
    Inventors: Frank Ursetta, Joshua C. Sautner, Christopher Liston
  • Publication number: 20160363495
    Abstract: A system and method for magnetizing a ferromagnetic element is disclosed. Electrodes are positioned on opposite surfaces of the ferromagnetic element and a current is applied to the electrodes, resulting in the formation of a magnetically conditioned region on the ferromagnetic element. Magnetic field sensors may be placed proximate the magnetically conditioned region. Output signals from the magnetic field sensors may be indicative of a load or torque applied to the ferromagnetic element.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Frank URSETTA, Joshua C. SAUTNER, Christopher Liston
  • Patent number: 8893562
    Abstract: A torque sensing device for measuring the torque applied to a rotatable shaft, and also measuring the magnetic field noise affecting the device. The device incorporates a switching function thereby enabling the device to operate in a common signal detection mode and a differential noise detection mode. The device is capable of determining the torque applied to the rotatable shaft based upon output signals obtained from magnetic field sensors operating in both the common signal detection mode and the differential noise detection mode. The device is capable of accurately measuring a torque induced magnetic field and is capable of canceling measurement error resulting from noise induced magnetic fields.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: November 25, 2014
    Assignee: Methode Electronics, Inc.
    Inventors: Ignazio Barraco, Christopher Liston
  • Publication number: 20130125669
    Abstract: A torque sensing device for measuring the torque applied to a rotatable shaft, and also measuring the magnetic field noise affecting the device. The device incorporates a switching function thereby enabling the device to operate in a common signal detection mode and a differential noise detection mode. The device is capable of determining the torque applied to the rotatable shaft based upon output signals obtained from magnetic field sensors operating in both the common signal detection mode and the differential noise detection mode. The device is capable of accurately measuring a torque induced magnetic field and is capable of canceling measurement error resulting from noise induced magnetic fields.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Inventors: Ignazio Barraco, Christopher Liston
  • Publication number: 20050225587
    Abstract: Positioning a printing head of a printing press in which marks are applied on a support that is detected by sensors and as a consequence, the printing head is adjusted, the marks being applied on two opposite sides of the support that are detected by two correspondingly arranged sensors, and the printing head is oriented in response to the results of the two sensors.
    Type: Application
    Filed: April 12, 2004
    Publication date: October 13, 2005
    Inventors: Uwe Hoffmann, Patrick Metzler, Karlheinz Peter, Holger Runkowske, Christopher Liston
  • Patent number: 6934041
    Abstract: The invention relates to a method and apparatus for minimizing the influence of register differences in multicolor printing, in particular in digital printing processes, register values (1) in the transport direction (2), which are different transversely with respect to this direction being set to a value between the extremes (3, 3?). The invention is intended to carry out a development such that the influence of register differences on the image quality can be minimized reliably and to a great extent. This is achieved by a number of individual values of the register values (1) being measured and an average value (4, 4?) being determined from these and brought into alignment with the average value (4, 4?) from at least one further color printing unit (5, 5?, 5?, 5??).
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: August 23, 2005
    Assignee: Eastman Kodak Company
    Inventors: Christopher Liston, Patrick Metzler, Karlheinz Walter Peter, Ralph Petersen, Ingo Klaus Dreher
  • Patent number: 6745695
    Abstract: A printing machine having at least one printing unit whose image cylinder is driven by friction by an element to which the image is transferred. The influence of a change in the application of print is kept as small as possible, by the width of image cylinder and element being at least so much wider than the maximum width of the image to be transferred that the rotational speed of the image cylinder remains essentially constant in the event of a change in the image.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 8, 2004
    Assignee: NexPress Solutions LLC
    Inventor: Christopher Liston
  • Publication number: 20030200882
    Abstract: A printing machine having at least one printing unit whose image cylinder is driven by friction by an element to which the image is transferred. The influence of a change in the application of print is kept as small as possible, by the width of image cylinder and element being at least so much wider than the maximum width of the image to be transferred that the rotational speed of the image cylinder remains essentially constant in the event of a change in the image.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 30, 2003
    Applicant: NexPress Solutions LLC
    Inventor: Christopher Liston
  • Patent number: 6591747
    Abstract: Correcting register faults in a multicolor printing machine having a number of items of equipment for the digital production of color separations, wherein correction values are determined and assigned to angular positions of at least one image cylinder and, as a result, taken into account for the control of the production of the color separations on the image cylinder. Correction values are to be made available for the correction of register faults, which, with a fine graduation, make it possible to assign them to angular positions of machine elements in a repeatable way. This is achieved by determining circularity errors of machine elements which have an influence on the register, assigned to their angular positions and, from these, the correction values for the control of the production of the color separations on the at least one image cylinder being determined.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: July 15, 2003
    Assignee: Nexpress Solutions LLC
    Inventors: Donald Buch, Heiko Hunold, Michael Kowalczyk, Christopher Liston, Patrick Metzler, Robert Peffer, Karlheinz Walter Peter, John Robert Thompson
  • Patent number: 6522857
    Abstract: A method and apparatus for setting registration in a multicolor printing machine (1) having a number of exposure devices (2, 2′, . . . ) for the digital production of color separations (3, 3′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled, in order to set registration, such that in-register prints are achieved, influencing variables (4, 4′, 4″) which are caused by the printed pages and have an influence on registration being taken into account in setting up and combining the color separations (3, 3′, . . . ) before the onset of a change in said influencing variables. Therefore, no interruption of the printing process between two different printed pages (33, 34) is necessary.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: February 18, 2003
    Assignee: NexPress Solutions LLC
    Inventors: Ingo Klaus Dreher, Heiko Hunold, Christopher Liston, Patrick Metzler, Karlheinz Walter Peter
  • Patent number: 6519423
    Abstract: A method and apparatus for setting registration in a multicolor printing machine for the digital production of color separations, the actions of setting up and combining color separations being controlled when printing substrates of a different grade are fed in, in order to correct registration setting. In the event of a change in the printing substrate grade, the influence of this change on registration can be compensated for optimally before the printing substrate (16) is fed to the printing process. When the printing substrate grade is changed, the influence of all the properties of the printing substrate (16) that are relevant to registration is taken into account directly as the change is implemented, by correction values (4, 4′, . . . ) for the printing substrate (16) that are available before printing is carried out.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: February 11, 2003
    Assignee: NexPress Solutions LLC
    Inventors: Ingo Klaus Dreher, Christopher Liston, Patrick Metzler, Karlheinz Walter Peter
  • Patent number: 6493012
    Abstract: A method and apparatus for setting register on a multicolor printing machine (1) having color printing units (6, 6′, 6″, 6″) allocated to various printing inks and having image cylinders (2, 2′), equipment (3, 3′) for producing images, in particular electrostatic latent images, on the image cylinders (2, 2′, . . . ), a carrier (4) for printing substrates (15) and image transfer points (5, 5′, 5″, 5′″) for the transfer of the color separations (7, 7′, . . . ) from the color printing units (6, 6′, 6″, 6′″) to the printing substrates (15), an allocation of the image productions (11, 11′) on the image cylinders (2, 2′, . . . ) to the printing substrates (15) being carried out in order to achieve coincidence of register of the color separations (7, 7′, . . . ) in the print. This is achieved by a time-independent allocation of the positions of the image productions (11, 11′, . . .
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 10, 2002
    Assignee: Nexpress Solutions LLC
    Inventors: Donald Buch, Ingo Klaus Dreher, Heiko Hunold, Christopher Liston, Patrick Metzler, Michael Mordhorst, Stephan Walter Pareigis, Robert Peffer, Karlheinz Walter Peter, Ralph Petersen, Frank Pierel, John Robert Thompson, G√ľnther Voss
  • Patent number: 6480693
    Abstract: Apparatus and a method for correcting registration faults based on changes in machine state (4, 4′, . . . ; 5, 5′, . . . ) in a multicolor printing machine (1) having a number of printing units (13, 13′, . . . ) with image cylinders (14, 14′, . . . ) and exposure devices (2, 2′, . . . ) for the digital production of color separations (3, 3′, . . . ) on the image cylinders (14, 14′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled such that in-register prints are achieved. Changes in machine state (4, 4′, . . . ; 5, 5′, . . . ) are registered and, on the basis of these changes in machine state (4, 4′, . . . ; 5, 5′, . . . ), the production of the color separations (3, 3′, . . . ) is changed such that a disturbance to registration accuracy of the print, threatened by a change in machine state (4, 4′, . . . ; 5, 5′, . . . ), is compensated for.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: November 12, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Christopher Liston, Patrick Metzler
  • Patent number: 6421522
    Abstract: A method and apparatus for setting registration in a multicolor printing machine having a number of exposure devices for the digital production of color separations, the actions of setting up and combining the color separations being controlled, in order to set the registration, in such a way that accurate registered prints are achieved. According to the invention, in the event of a change in the toner profile, the influence of the toner profile on the registration is taken into account, by available influencing variables directly as the change is implemented.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: July 16, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Thomas Henderson, Christopher Liston, Patrick Metzler, Karlheinz Walter Peter
  • Publication number: 20020001491
    Abstract: The invention relates to a method and apparatus for setting register on a multicolor printing machine (1) having color printing units (6, 6′, 6″, 6″) allocated to various printing inks and having image cylinders (2, 2′), equipment (3, 3′) for producing images, in particular electrostatic latent images, on the image cylinders (2, 2′, . . . ), a carrier (4) for printing substrates (15) and image transfer points (5, 5′, 5″, 5′″) for the transfer of the color separations (7, 7′, . . . ) from the color printing units (6, 6′, 6″, 6′″) to the printing substrates (15), an allocation of the image productions (11, 11′) on the image cylinders (2, 2′, . . . ) to the printing substrates (15) being carried out in order to achieve coincidence of register of the color separations (7, 7′, . . . ) in the print.
    Type: Application
    Filed: May 17, 2001
    Publication date: January 3, 2002
    Applicant: NexPress Solutions LLC
    Inventors: Donald Buch, Ingo Klaus Dreher, Heiko Hunold, Christopher Liston, Patrick Metzler, Michael Mordhorst, Stephan Walter Pareigis, Robert Peffer, Karlheinz Walter Peter, Ralph Petersen, Frank Pierel, John Robert Thompson, Gunther Voss
  • Publication number: 20010055506
    Abstract: The invention relates to apparatus and a method for correcting register faults based on changes in machine state (4, 4′, . . . ; 5, 5′, . . . ) in a multicolor printing machine (1) having a number of printing units (13, 13′, . . . ) with image cylinders (14, 14′, . . . ) and equipment (2, 2′, . . . ) for the digital production of color separations (3, 3′, . . . ) on the image cylinders (14, 14′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled in such a way that in-register prints are achieved.
    Type: Application
    Filed: May 16, 2001
    Publication date: December 27, 2001
    Applicant: NexPress Solutions LLC
    Inventors: Christopher Liston, Patrick Metzler
  • Publication number: 20010055505
    Abstract: The invention relates to a method and apparatus for setting register in a multicolor printing machine (1) having a number of items of equipment (2, 2′, . . . ) for the digital production of color separations (3, 3′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled, in order to set the register, in such a way that in-register prints are achieved, influencing variables (4, 4′, 4″) which are caused by the printed pages and have an influence on the register being taken into account in setting up and combining the color separations (3, 3′, . . . ) before the onset of a change in said influencing variables.
    Type: Application
    Filed: May 16, 2001
    Publication date: December 27, 2001
    Applicant: NexPress Solutions LLC
    Inventors: Ingo Klaus Dreher, Heiko Hunold, Christopher Liston, Patrick Metzler, Karlheinz Walter Peter
  • Publication number: 20010050010
    Abstract: The invention relates to a method and apparatus for correcting register faults in a multicolor printing machine (1) having a number of items of equipment (2,2′, . . . ) for the digital production of color separations (3,3′, . . . ), correction values being determined and assigned to the angular positions (4,4′, . . . ) of at least one image cylinder (5,5′, . . . ) and, as a result, being taken into account for the control of the production of the color separations (3,3′, . . . ) on said image cylinder.
    Type: Application
    Filed: May 17, 2001
    Publication date: December 13, 2001
    Applicant: NexPress Solutions LLC
    Inventors: Donald Buch, Heiko Hunold, Michael Kowalczyk, Christopher Liston, Patrick Metzler, Robert Peffer, Karlheinz Walter Peter, John Robert Thompson
  • Publication number: 20010046056
    Abstract: The invention relates to a method, apparatus and a printing machine (1) having a control device (8, 8′, 8″, 8′″) for the digital control of an element of the printing machine (1), an assignment (6, 6′) of two non-coincident digital variables (2 and 2′) being carried out.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 29, 2001
    Applicant: NexPress Solutions LLC
    Inventors: Heiko Hunold, Christopher Liston, Patrick Metzler, Gerhard Rudolf Sing, Lutz Michael Wagner
  • Publication number: 20010043816
    Abstract: The invention relates to a method and apparatus for setting register in a multicolor printing machine having a number of items of equipment for the digital production of color separations, the actions of setting up and combining the color separations being controlled when printing substrates of a different grade are fed in, in order to correct the register setting.
    Type: Application
    Filed: May 15, 2001
    Publication date: November 22, 2001
    Applicant: NexPress Solutions LLC
    Inventors: Ingo Klaus Dreher, Christopher Liston, Patrick Metzler, Karlheinz Walter Petter