Patents by Inventor William Jeffrey Creech

William Jeffrey Creech 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).

  • Assembly for controlling the force applied to a pantograph
    Patent number: 7397007
    Abstract: A method and apparatus for controlling a force applied to a pantograph. A bidirectional snubber and a velocity controller are used to dampen the applied force. Linkages between a shaft and the bidirectional snubber and between the bidirectional snubber and the velocity controller are used to rotationally translate the applied force.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: July 8, 2008
    Assignee: Siemens Power Transmission & Distribution, Inc.
    Inventors: John T. Fitzer, Urs Bischof, William Jeffrey Creech