Patents by Inventor Karl Pfeil

Karl Pfeil 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).

  • Automatic implement identification system
    Patent number: 9180889
    Abstract: An identification system is provided for a vehicle-implement system wherein a selected one of a plurality of different implements is coupled to the vehicle. Each of the plurality of implements has a unique corresponding component or actuator. A component sensor senses a condition of the component, such as the position of the piston of a hydraulic cylinder. The sensor generates a sensor signal which has a signal characteristic (such as a frequency) which has a plurality of values. each frequency value is unique to a corresponding one of the components. A signal processing unit receives the sensor signal and identifies the selected implement as a function of the value of the characteristic of the sensor signal.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: November 10, 2015
    Assignee: DEERE & COMPANY
    Inventors: Bruce L. Upchurch, Karl Pfeil, Andreas Wehle
  • AUTOMATIC IMPLEMENT IDENTIFICATION SYSTEM
    Publication number: 20150073618
    Abstract: An identification system is provided for a vehicle-implement system wherein a selected one of a plurality of different implements is coupled to the vehicle. Each of the plurality of implements has a unique corresponding component or actuator. A component sensor senses a condition of the component, such as the position of the piston of a hydraulic cylinder. The sensor generates a sensor signal which has a signal characteristic (such as a frequency) which has a plurality of values. each frequency value is unique to a corresponding one of the components. A signal processing unit receives the sensor signal and identifies the selected implement as a function of the value of the characteristic of the sensor signal.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: DEERE & COMPANY
    Inventors: BRUCE L. UPCHURCH, Karl Pfeil, Andreas Wehle
  • Method for hardening ring-shaped grooves by means of laser beams
    Patent number: 6592690
    Abstract: A method for hardening the grooves of steel pistons of steel piston heads whereby hardening of the bottom of the grooves is avoided. The laser beam is directed onto the sides of the groove in an approximately tangential direction in relation to the outer diameter of the piston.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: July 15, 2003
    Assignee: Mahle GmbH
    Inventors: Michael Weis, Karl Pfeil