Patents by Inventor Nagib Rajput

Nagib Rajput 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).

  • Patent number: 7880350
    Abstract: A hydrogen cooled generator having an axis and more than three phases, the generator comprises a main casing section enclosing a stator with windings; a casing end section; at least one end winding disposed in the casing end section; a toroidal duct formed on at least one of the casing end section and the main casing section having a bottom wall and two side walls, wherein at least one of the bottom wall and the two side walls shares a wall of the casing end section so as to form a common wall; at least one bushing penetrating the common wall and inclined towards the axis of the generator so as to form an inclination, the at least one bushing having a first end connected to the at least one winding and a second end terminating in the toroidal duct.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: February 1, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Andre Arndt, Nagib Rajput
  • Publication number: 20100019614
    Abstract: A synchronous machine (10), especially a turbogenerator, includes a rotor (12) rotatable about a rotor axis, the rotor being concentrically surrounded by a stator (11), with an air gap (26) between said rotor (12) and stator (11), and includes a rotor damping system (14). Damping losses are substantially reduced by providing a system in the air gap (26) for controlling the stator magnetic field (13).
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Inventors: Peter Ulrich Arend, Nagib Rajput
  • Publication number: 20090309434
    Abstract: A hydrogen cooled generator having an axis and more than three phases, the generator comprises a main casing section enclosing a stator with windings; a casing end section; at least one end winding disposed in the casing end section; a toroidal duct formed on at least one of the casing end section and the main casing section having a bottom wall and two side walls, wherein at least one of the bottom wall and the two side walls shares a wall of the casing end section so as to form a common wall; at least one bushing penetrating the common wall and inclined towards the axis of the generator so as to form an inclination, the at least one bushing having a first end connected to the at least one winding and a second end terminating in the toroidal duct.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 17, 2009
    Applicant: ALSTOM Technology Ltd
    Inventors: Andre Arndt, Nagib Rajput