Patents by Inventor Todd Helsel

Todd Helsel 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).

  • Electromagnetic actuator and stator design in a fuel injector assembly
    Patent number: 6565020
    Abstract: An electromagnetic actuator for a control valve module in an engine fuel injector, the module being a replaceable, independent element of the injector. The actuator has a stator with electromagnetic coil windings on a bobbin located within the control valve module. An armature is connected to a control valve in the module. The bobbin supports and precisely positions connector pins for the coil windings for registry with an external electrical wire harness.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: May 20, 2003
    Assignee: Detroit Diesel Technology
    Inventors: W. Scott Fischer, Todd Helsel, David Eickholt