Patents by Inventor Urs Hafner

Urs Hafner 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).

  • Method and device for extraction or introduction of a rotor from or into a stator of an electric machine
    Patent number: 9444316
    Abstract: The method for extraction or introduction of a rotor (4) from or into a stator (2) of an electric machine (1) includes removing the fan blades (20) from the seats (19) of the rotor shaft (26), connecting a first guide (16) into the seats (19) of the removed fan blades (20), connecting a second guide (23) to the stator or to an element fixed to the stator (2), extracting or inserting the rotor (4) by sliding the first guide (16) on the second guide (23).
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: September 13, 2016
    Assignee: ALSTOM TECHNOLOGY LTD
    Inventors: Robert Fogel, Daniel Hediger, Urs Hafner, Jacek Kanicki
  • METHOD AND DEVICE FOR EXTRACTION OR INTRODUCTION OF A ROTOR FROM OR INTO A STATOR OF AN ELECTRIC MACHINE
    Publication number: 20130333201
    Abstract: The method for extraction or introduction of a rotor (4) from or into a stator (2) of an electric machine (1) includes removing the fan blades (20) from the seats (19) of the rotor shaft (26), connecting a first guide (16) into the seats (19) of the removed fan blades (20), connecting a second guide (23) to the stator or to an element fixed to the stator (2), extracting or inserting the rotor (4) by sliding the first guide (16) on the second guide (23).
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Robert Fogel, Daniel Hediger, Urs Hafner, Jacek Kanicki