Patents by Inventor Pierre Rigaud

Pierre Rigaud 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 operating in a variable regime
    Patent number: 9431943
    Abstract: The invention relates to electromechanical assemblies comprising an alternator, especially of high power, typically greater than or equal to IMW, and a converter, the alternator comprising a rotor driven in rotation, by a wind turbine for example, and more particularly to wound rotor synchronous alternators. The drive can also take place by means of a tide-driven, hydraulic or marine-current-driven generator. An alternator comprises in a manner known per se a field winding, generally at the rotor, supplied with DC current either by split rings and brushes, or by an exciter, so as to generate in an armature winding, generally at the stator, an AC voltage.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 30, 2016
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Luc Moreau, Pierre Rigaud, Thomas Verchere
  • ASSEMBLY OPERATING IN A VARIABLE REGIME
    Publication number: 20130313828
    Abstract: The invention relates to electromechanical assemblies comprising an alternator, especially of high power, typically greater than or equal to IMW, and a converter, the alternator comprising a rotor driven in rotation, by a wind turbine for example, and more particularly to wound rotor synchronous alternators. The drive can also take place by means of a tide-driven, hydraulic or marine-current-driven generator. An alternator comprises in a manner known per se a field winding, generally at the rotor, supplied with DC current either by split rings and brushes, or by an exciter, so as to generate in an armature winding, generally at the stator, an AC voltage.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Applicant: Moteurs Leroy-Somer
    Inventors: Luc Moreau, Pierre Rigaud, Thomas Verchere
  • ROTOR COMPRISING ADDED POLE SHOES COVERING THE MAGNETS AND A ROTARY ELECTRIC MACHINE
    Publication number: 20130187507
    Abstract: The present invention relates to a rotor for a rotary electric machine, comprising: a hub comprising a stack of sheets, permanent magnets arranged on the surface of the stack of sheets, pole shoes covering the magnets and an attachment means for holding the pole shoes on the hub.
    Type: Application
    Filed: October 4, 2011
    Publication date: July 25, 2013
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Colas Fouquart, Yannick Messin, Pierre Rigaud, Thomas Verchere
  • Test machine to apply a uniform internal pressure to a tube
    Patent number: 8353217
    Abstract: This machine comprises a central body (1), un piston (3) compressing the liquid contained in a liner (2), and a peripheral bladder (18) capable of uniformly applying pressure to a tube (21) immediately surrounding this bladder. Pressure can be applied in a simple manner through a tensile and compression testing machine (22, 23). No end effect that could disturb the test is produced on the tube.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: January 15, 2013
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventor: Pierre Rigaud
  • TEST MACHINE TO APPLY A UNIFORM INTERNAL PRESSURE TO A TUBE
    Publication number: 20110259087
    Abstract: This machine comprises a central body (1), un piston (3) compressing the liquid contained in a liner (2), and a peripheral bladder (18) capable of uniformly applying pressure to a tube (21) immediately surrounding this bladder. Pressure can be applied in a simple manner through a tensile and compression testing machine (22, 23). No end effect that could disturb the test is produced on the tube.
    Type: Application
    Filed: August 6, 2009
    Publication date: October 27, 2011
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Pierre Rigaud