Patents by Inventor Christopher Roll

Christopher Roll 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: 10814905
    Abstract: Electric power assisted steering (EPAS) systems for solid axle front suspension vehicles are described. An example EPAS system includes an idler arm having a first end and a second end. The first end of the idler arm is coupled to a frame of the vehicle. The example EPAS system further includes an EPAS rack assembly having an input shaft, a rack, an electric motor, and an output link. The rack is coupled to the input shaft and is movable in response to movement of the input shaft. The electric motor is coupled to the rack. The electric motor provides powered assistance to movement of the rack. The output link has a first end and a second end. The first end of the output link is coupled to the rack. The second end of the output link is coupled to the second end of the idler arm.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 27, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jaspal Sohal, Joseph Skynar, Stephen Dockstader, Paul Robert Longworth, Christopher Rolls
  • Publication number: 20190351937
    Abstract: Electric power assisted steering (EPAS) systems for solid axle front suspension vehicles are described. An example EPAS system includes an idler arm having a first end and a second end. The first end of the idler arm is coupled to a frame of the vehicle. The example EPAS system further includes an EPAS rack assembly having an input shaft, a rack, an electric motor, and an output link. The rack is coupled to the input shaft and is movable in response to movement of the input shaft. The electric motor is coupled to the rack. The electric motor provides powered assistance to movement of the rack. The output link has a first end and a second end. The first end of the output link is coupled to the rack. The second end of the output link is coupled to the second end of the idler arm.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Inventors: Jaspal Sohal, Joseph Skynar, Stephen Dockstader, Paul Robert Longworth, Christopher Rolls
  • Patent number: 9025391
    Abstract: A circuit arrangement, having a plurality of electronic components; a plurality of first access lines and second access lines, wherein each electronic component is coupled with at least one first access line and at least one second access line; an access controller configured to control an access to at least one electronic component of the plurality of electronic components via the at least one first access line and the at least one second access line; a bias circuit configured to provide a defined potential to at least one of the first access lines, wherein the bias circuit is configured, during an access to an electronic component via one selected first access line of the plurality of first access lines, to provide the defined potential to one or two first access lines of the plurality of first access lines, wherein the one or two first access lines are arranged adjacent to the selected first access line, and, wherein during the access to the electronic component, the potentials of the first access lines of
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 5, 2015
    Assignee: Infineon Technologies AG
    Inventors: Thomas Nirschl, Christoph Roll, Philipp Hofter
  • Publication number: 20150077759
    Abstract: An optical probe system has a light source fiber-delivered and the detector fiber-coupled for analyzing carrier fringes using a line sensor to measure displacement and tilt. Simultaneous surface metrology to measure both the front and back surface of the same optic, is enabled provided the two surfaces are substantially parallel to within the measurement range. Alternatively, the front surface can be measured and then subsequently the back surface.
    Type: Application
    Filed: July 30, 2014
    Publication date: March 19, 2015
    Applicant: UNIVERSITY OF ROCHESTER
    Inventors: Jonathan D. Ellis, Christopher Roll, Andrew Keene, Michael A. Echter
  • Publication number: 20140146618
    Abstract: A circuit arrangement, having a plurality of electronic components; a plurality of first access lines and second access lines, wherein each electronic component is coupled with at least one first access line and at least one second access line; an access controller configured to control an access to at least one electronic component of the plurality of electronic components via the at least one first access line and the at least one second access line; a bias circuit configured to provide a defined potential to at least one of the first access lines, wherein the bias circuit is configured, during an access to an electronic component via one selected first access line of the plurality of first access lines, to provide the defined potential to one or two first access lines of the plurality of first access lines, wherein the one or two first access lines are arranged adjacent to the selected first access line, and, wherein during the access to the electronic component, the potentials of the first access lines of
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Nirschl, Christoph Roll, Philipp Hofter