Patents by Inventor Alfred Thiard-Laforet

Alfred Thiard-Laforet 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 for repairing a connecting device for the electrical connection and for supplying and carrying away the coolant to and from the hollow conductor elements of the stator winding bars of electrical machines
    Patent number: 5659944
    Abstract: A method of repairing a joint between conductor elements of a stator winding bar of an electrical machine and a connecting device connected to an end of the stator winding bar for providing electrical connection and coolant flow for the conductor elements includes the steps of removing an existing connecting device from the end of the stator winding bar; aligning the conductors of the end of the stator winding bar by heating the bar end to above the flow point of the braze holding the conductors in position while simultaneously holding the conductors of the end of the stator winding bar under compression in two orthogonal directions perpendicular to the length of the stator winding bar; forming slots in the end of the stator winding bar and at locations such that the slots extend to locations where the conductor elements abut one another; applying an electrically conductive first connecting part onto the end of the stator winding bar such that the first connecting part substantially surrounds the end of the s
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: August 26, 1997
    Assignee: Asea Brown Boveri AG
    Inventors: Alfred Thiard-Laforet, Wilibald Zerlik
  • Method for repairing stator winding bars
    Patent number: 5557837
    Abstract: The method for repairing a connecting device for the electrical connection and for supplying and carrying away the coolant to and from the hollow conductor elements of the stator winding bars of electrical machines includes removal of the existing connecting device (2) from the bar end by inductive heating; cleaning the bar end in the region where the new connecting device is intended to be mounted; material-cutting machining the end surface of the bar end; introducing narrow slots (7) between adjacent conductor elements (1) into the end of the bar in the transverse and vertical directions; pushing on a first connecting part (2a) which is made of copper and completely surrounds the bar end; filling remaining gaps between the first connecting part (2a) and the outer surfaces of the bar end with copper foil and/or solder foil; filling the narrow slots (7) with copper foil and/or solder foil (10) or a combination of both; inductive heating of the first connecting part (2a) and of the bar end and soldering with t
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: September 24, 1996
    Assignee: ABB Management AG
    Inventors: Alfred Thiard-Laforet, Wilibald Zerlik