Patents by Inventor Eric Chantriaux

Eric Chantriaux 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: 9810224
    Abstract: Rotary-wing aircraft or fixed-wing aircraft consisting of one or a plurality of rotors and/or one or a plurality of airscrews being caused to rotate by means of at least one shaft, the said aircraft comprising a distributed electric motor unit configured to ensure the propulsion and/or the lifting of the said aircraft by causing the said shaft to rotate, the motor unit being a distributed electric motor unit connected directly to the rotating shaft, no mechanism for the transmission of movement being interposed between the said unit and the said shaft, the distributed electric motor unit being composed of a plurality of stacked electric motor elements, each said electric motor element being connected directly to the rotating shaft and consisting of at least one fixed stator and at least one moving rotor capable of connection to the said rotating shaft in order to transmit to it a mechanical power of the following kind where: ┬ĚPr=the nominal mechanical power necessary for the propulsion and/or for the lifting
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: November 7, 2017
    Inventors: Eric Chantriaux, Pascal Chretien
  • Patent number: 9499277
    Abstract: An aircraft comprising rotors and/or propellers rotated by a shaft and including a power unit. The distributed electric power unit is formed by stacked electric power elements, each conferring, on the shaft, a fraction of the total power necessary; the distributed electric power unit is in direct engagement with the shaft, with no movement transmission mechanism inserted between the unit and the shaft; each electric power element is directly connected to the rotation shaft and comprises a fixed stator, a moving rotor and a mechanical or electromagnetic free wheel in direct engagement with the shaft, said moving rotor co-operating with the free wheel to be coupled to the rotation shaft during normal operation of the electric power unit and to be disconnected from the shaft in the event of the failure of the electric element.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: November 22, 2016
    Inventors: Eric Chantriaux, Pascal Chretien
  • Publication number: 20140248168
    Abstract: Rotary-wing aircraft or fixed-wing aircraft consisting of one or a plurality of rotors and/or one or a plurality of airscrews being caused to rotate by means of at least one shaft, the said aircraft comprising a distributed electric motor unit configured to ensure the propulsion and/or the lifting of the said aircraft by causing the said shaft to rotate, the motor unit being a distributed electric motor unit connected directly to the rotating shaft, no mechanism for the transmission of movement being interposed between the said CND unit and the said shaft, the distributed electric motor unit being composed of a plurality of stacked electric motor elements, each said electric motor element being connected directly to the rotating shaft and consisting of at least one fixed stator and at least one moving rotor capable of connection to the said rotating shaft in order to transmit to it a mechanical power of the following kind where: Pr=the nominal mechanical power necessary for the propulsion and/or for the lifti
    Type: Application
    Filed: August 17, 2012
    Publication date: September 4, 2014
    Inventors: Eric Chantriaux, Pascal Chretien
  • Publication number: 20140203739
    Abstract: The invention relates to a rotary- or fixed-wing aircraft comprising one or more rotors and/or one or more propellers, in which the rotor(s) and/or propeller(s) are rotated at a variable or constant speed by at least one shaft (Rp1, Rp2, Rp, RAC, H), and the aircraft includes a power unit (GEMD) configured to propel and/or lift the aircraft by rotating the shaft.
    Type: Application
    Filed: August 13, 2012
    Publication date: July 24, 2014
    Inventors: Eric Chantriaux, Pascal Chretien
  • Patent number: 4865825
    Abstract: A process and an apparatus for the continuous decoposition of a supersaturated sodium aluminate liquor forming a suspension in the presence of aluminium trihydroxide seed characterised by:(a) bringing into contact in a non-agitated grading decomposer a feed flow formed by the suspension and a recycling flow which is taken off in the underflow zone of the decomposer,(b) simultaneously drawing off a production flow in the same underflow zone,(c) extraction of an overflow flow at the overflow of the grading decomposer, and(d) suitable regulation in dependence on the flow rate of the feed flow, the flow rate of the recycling flow, the speed of discharge flow of the suspension in the underflow zone and the speed of rise of the suspension in the overflow zone.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: September 12, 1989
    Assignee: Aluminium Pechiney
    Inventors: Eric Chantriaux, Henri Grobelny
  • Patent number: 4818499
    Abstract: A grading decomposer apparatus for continuously decomposing a liquor of sodium aluminate supersaturated in alumina comprises a cylindrical-conical tank for containing the liquor, having an upper cylindrical portion and an overflow generally peripherally disposed in the upper portion. A centrally disposed tubular element passes from above into the upper portion of the tank; the tubular member terminates in the cylindrical portion of the tank below the overflow. The apparatus also includes an off-take from the lower portion of the tank to an outlet; liquor is recycled from the lower portion of the tank to the upper portion within the tubular element and below the overflow, and liquor is introduced into the upper portion of the tank within the tubular element and below the overflow. A static disperser is disposed within the tubular element, the liquor feed and the recycled liquor inlet in order to create a feed and tranquilization zone within the tubular element.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: April 4, 1989
    Assignee: Aluminium Pechiney
    Inventors: Eric Chantriaux, Henri Grobelny
  • Patent number: 4762684
    Abstract: A method and apparatus for decomposing a sodium aluminate liquor supersaturated with alumina, obtained from alkaline action on bauxite by the Bayer process, is initiated by introduction of alumina trihydrate seed, thereby forming a suspension. The suspension is fed in at the top of a non-agitated reactor described as a "decomposer", and removed from the bottom of the decomposer; the speed at which the suspension moves downwardly is regulated at 1.5 to 10 meters per hour. The apparatus comprises a cylindrical-conical reactor which is fitted with an arrangement for feeding in the suspension at the top, and with an arrangement for taking out the suspension at the bottom. In one embodiment of the apparatus the suspension is taken from the base of the decomposer through an internal tube, with air injected into the bottom of it, is raised to the level of the top of the decomposer and is then sent downstream.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: August 9, 1988
    Assignee: Aluminium Pechiney
    Inventors: Eric Chantriaux, Henri Grobelny, Yves Perret
  • Patent number: 4666687
    Abstract: The invention concerns a method and apparatus for decomposing a sodium aluminate liquor supersaturated with alumina, obtained from alkaline action on bauxite by the Bayer process, decomposition being initiated by introduction of alumina trihydrate seed to trigger the decomposition, thereby forming a suspension. In this process the suspension is fed in at the top of a non-agitated reactor described as a "decomposer", and removed from the bottom of the decomposer; the speed at which the suspension moves downwardly is regulated at 1.5 to 10 meters per hour. The apparatus comprises a cylindrical-conical reactor which is fitted with an arrangement for feeding in the suspension at the top, and with an arrangement for taking out the suspension at the bottom. In one embodiment of the apparatus the suspension is taken from the base of the decomposer through an internal tube, with air injected into the bottom of it, is raised to the level of the top of the decomposer and is then sent downstream.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: May 19, 1987
    Assignee: Aluminium Pechiney
    Inventors: Eric Chantriaux, Henri Gobelny, Yves Perret