Patents by Inventor George Herr

George Herr 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).

  • Clutch run-in by slip control
    Patent number: 8594899
    Abstract: A method for operating a clutch includes operating the clutch with increased slip during a green phase and operating the clutch with normal slip during a post-green phase. In some example embodiments, increased slip consists of slip speeds greater than 40 revolutions per minute. In an example embodiment, increased slip consists of a slip speed of approximately 50 revolutions per minute.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: November 26, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Loyal George MacMillian, Ekkehard Reibold, Georg Göppert, George Herr
  • Power-off downshift engagement dampening
    Patent number: 8308609
    Abstract: A method for controlling a power-off downshift in a powershift transmission includes disengaging the current gear, synchronizing engine speed and a speed of the target gear layshaft by increasing a torque capacity of the target gear clutch, disengaging the clutch, engaging the target gear, and reengaging the clutch.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 13, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Shawn A. Holland, Ralph S. Walker, George Herr, Jeffrey J. Tumavitch, Bradley D. Riedle, Steven C. Meisner, Hong Jiang, Matthew J. Shelton
  • CLUTCH RUN-IN BY SLIP CONTROL
    Publication number: 20120232767
    Abstract: A method for operating a clutch includes operating the clutch with increased slip during a green phase and operating the clutch with normal slip during a post-green phase. In some example embodiments, increased slip consists of slip speeds greater than 40 revolutions per minute. In an example embodiment, increased slip consists of a slip speed of approximately 50 revolutions per minute.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 13, 2012
    Inventors: Loyal George MacMillian, Ekkehard Reibold, Georg Göppert, George Herr
  • Power-Off Downshift Engagement Dampening
    Publication number: 20110306464
    Abstract: A method for controlling a power-off downshift in a powershift transmission includes disengaging the current gear, synchronizing engine speed and a speed of the target gear layshaft by increasing a torque capacity of the target gear clutch, disengaging the clutch, engaging the target gear, and reengaging the clutch.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 15, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Shawn A. Holland, Ralph S. Walker, George Herr, Jeffrey J. Tumavitch, Bradley D. Riedle, Steven C. Meisner, Hong Jiang, Matthew J. Shelton
  • TEMPERATURE SENSITIVE DIPSTICK
    Publication number: 20080229602
    Abstract: A fluid level indicator for determining the level of fluid in a container includes a dipstick that is entered into the fluid in the container and withdrawn from the fluid, a billet of thermochromic material having a reference temperature, a billet length extending along a portion of the dipstick, and a fluid level range marking on the dipstick along the length of the billet.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 25, 2008
    Inventors: George Herr, Derek Kinch
  • Temperature sensitive dipstick
    Patent number: 7418788
    Abstract: A fluid level indicator for determining the level of fluid in a container includes a dipstick that is entered into the fluid in the container and withdrawn from the fluid, a billet of thermochromic material having a reference temperature, a billet length extending along a portion of the dipstick, and a fluid level range marking on the dipstick along the length of the billet.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 2, 2008
    Assignee: Ford Global Technologies, LLC
    Inventors: George Herr, Derek Kinch