Patents by Inventor Norman N. Krieger

Norman N. Krieger 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).

  • System for controlling motor speed by altering magnetic field of the motor
    Patent number: 7045983
    Abstract: The present invention provides a system for controlling the speed of a motor by altering the magnetic field of the motor. The system includes field modification module, and a motor having field windings and a rotor. The field windings are configured to receive a driving signal that generates a magnetic field causing a rotation of the rotor. The field modification module is proximate the motor and alters the magnetic field in response to an input signal thereby controlling the speed and torque of the rotor.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: May 16, 2006
    Assignee: Ford Motor Company
    Inventors: Harold L. Castle, DeQuan Yu, Stephen T. Kempfer, Norman N. Krieger, Paul E. Fisher, Sheven Sharp, James L. Thompson
  • Automotive fuel pump impeller with staggered vanes
    Patent number: 6824361
    Abstract: An impeller for a fuel pump for supplying fuel to an automotive engine from a fuel tank includes an impeller body having a substantially disk shape with opposing first and second faces and an outer circumference. The impeller body defines a rotational axis extending therethrough perpendicular to the first and second faces. A plurality of radially outwardly extending vanes extend from the outer circumference of the impeller body and are spaced circumferentially about the impeller body. Each of the vanes includes a first half extending from the outer circumference adjacent the first face and a second half extending from the outer circumference adjacent the second face. The second halves are rotationally shifted about the rotational axis relative to the first halves. The vanes are spaced un-evenly and in a non-repeating pattern about the outer circumference of the impeller body.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: November 30, 2004
    Assignee: Visteon Global Technologies, Inc.
    Inventors: DeQuan Yu, Paul Edward Fisher, Stephan Thomas Kempfer, Norman N. Krieger
  • Automotive fuel pump impeller with staggered vanes
    Publication number: 20040018080
    Abstract: An impeller for a fuel pump for supplying fuel to an automotive engine from a fuel tank includes an impeller body having a substantially disk shape with opposing first and second faces and an outer circumference. The impeller body defines a rotational axis extending therethrough perpendicular to the first and second faces. A plurality of radially outwardly extending vanes extend from the outer circumference of the impeller body and are spaced circumferentially about the impeller body. Each of the vanes includes a first half extending from the outer circumference adjacent the first face and a second half extending from the outer circumference adjacent the second face. The second halves are rotationally shifted about the rotational axis relative to the first halves. The vanes are spaced un-evenly and in a non-repeating pattern about the outer circumference of the impeller body.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 29, 2004
    Applicant: Visteon Global Technologies, Inc.
    Inventors: DeQuan Yu, Paul Edward Fisher, Stephen Thomas Kempfer, Norman N. Krieger