Patents by Inventor Pierre Cros

Pierre Cros 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: 11434780
    Abstract: The invention relates to an air conditioning system for an aircraft comprising a turbine engine comprising at least one radial turbine and a compressor, said radial turbine extending along a central axis (10) and comprising a wheel (20) equipped with vanes (21) mounted so as to be able to rotate about said central axis (10), a nozzle (30) arranged at the periphery of said wheel (20) comprising a plurality of variable-pitch blades (31) arranged around said central axis (10), and a volute (12) comprising an air inlet (12a) and an air outlet (12b) opening onto said plurality of variable-pitch blades (31), characterized in that said variable-pitch blades (31) are arranged around said central axis (10) between two nozzle casing walls (11a, 11b) delimiting an air passage section of said nozzle between them, each variable-pitch blade (31) further comprising means for axial displacement of the blade between the two casing walls (11a, 11b).
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: September 6, 2022
    Inventors: Sandrine Cros, Mathieu Roumeas, James Fouragnan, Pierre-Thomas Lauriau, Nicolas Binder
  • Patent number: 4904347
    Abstract: A liquid product (4) leaving a furnace (2) is introduced into a series of cyclone separators (5, 6, 7). The liquid product to be vaporized is introduced tangentially into the top portion (5a, 6a, 7a) of each cyclone to place the product into contact with a side wall (5b, 6b, 7b) of the cyclone. A gaseous phase (11, 12, 13) formed in each cyclone is collected in the central zone (8, 9, 10) of the cyclone and is then introduced into a vacuum distillation column (3). The liquid phase obtained in each cyclone is collected at the bottom (5c, 6c, 7c) of the cyclone and then is introduced tangentially into the top (6a, 7a) of the following cyclone or, in the case of the last cyclone, is introduced directly into the vacuum distillation column (3). The side wall (5b, 6b, 7b) of each cyclone (5, 6, 7) is heated to a temperature near the maximum temperature allowable for avoiding all thermal deterioration of the product.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: February 27, 1990
    Assignees: Spie Batignolles, Electricite de France
    Inventors: Pierre Cros, Christian Daumas
  • Patent number: 4746495
    Abstract: An installation for chemical conversion of a gas mixture containing hydrogen and hydrocarbons comprises a series of reactors in which the gas mixture undergoes endothermic reactions at temperatures within the range of C. to C. A furnace is placed upstream of each reactor for reheating the gas mixture prior to introduction into the reactor. The furnaces are equipped with electric heating resistors which are intended to be placed in direct contact with the gas mixture as it is introduced into each furnace.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 24, 1988
    Assignees: Electricite de France, SPIE-Batignolles
    Inventors: Jean-Louis Mingaud, Christian Plard, Pierre Cros, Jacques Vanrenterghem
  • Patent number: 4534203
    Abstract: Punches having attachment heels of different types are mounted on a bending press by means of an adapter consisting of a bar or a series of bar segments secured to the top die-shoe of the press. The bottom portion of the adapter body is provided in one vertical face with a recess of greater depth than any type of punch attachment heel. A bearing spacer having the same height as the adapter body recess is placed against the punch heel either at the bottom of the recess or in an external position. The spacer and heel of the corresponding punch are held in position by a cramp which is tightly applied against the adapter body on the same side as the recess opening.
    Type: Grant
    Filed: January 24, 1984
    Date of Patent: August 13, 1985
    Assignee: Promecam Sisson-Lehmann
    Inventor: Pierre Cros
  • Patent number: 4449389
    Abstract: This device for bending the tool holder of a folding press comprises structure for controlling the deformation of the wedge secured at either end, in the form of a hollow screw engaged in a socket rigid with the tool holder so that it can accomplish movements of translation within this socket, a member for fastening the screw to the wedge, a sprocket mounted coaxially to the screw on the screw-threaded shank thereof for causing the translation of the screw in the socket, and a single driving system for controlling the rotation of the set of sprockets acting at different thrust points disposed at spaced intervals along the wedge, this single wedge having a relatively great length and being therefore easily deformable under the control of the single control system.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: May 22, 1984
    Assignee: Promecam Sisson-Lehmann
    Inventor: Pierre Cros
  • Patent number: 4278895
    Abstract: In a low-head hydroelectric power station, a turbine runner is mounted within the hub of a convergent-divergent draft tube at the base of a dam. At least one turbine is coupled to one or more electric generators housed within a casing which is totally submerged within the upstream pool. The distance from the generator casing to the draft tube intake is sufficient to prevent any interference with the water flow. The casing is provided with a vertical access and inspection shaft, the top opening of which is located above the normal water level and removably fixed on a flooring structure.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: July 14, 1981
    Assignee: Spie-Batignolles
    Inventor: Pierre Cros
  • Patent number: 4174273
    Abstract: A method for heating crude oil to be processed in a petrochemical installation, comprises successive heat exchangers disposed in series, each heat exchanger using pressurized steam as the heating fluid. Each exchanger has a lower exchange chamber, a liquid product supply line and a tube bundle, the steam transferring heat to liquid product flowing through the tube bundle. Each heat exchanger comprises an upper separation chamber disposed above the lower exchange chamber, the separation chamber having a gas phase outlet and a liquid phase outlet, the liquid phase outlet being disposed lower than the level at which the tube bundle extends into the separation chamber. Successive heat exchangers are connected together by a pipe communicating between the liquid phase outlet of the upper separation chamber of one of the heat exchangers and the liquid product supply line of the next heat exchanger.
    Type: Grant
    Filed: January 31, 1978
    Date of Patent: November 13, 1979
    Assignees: Spie-Batignolles, Societe Generale de Techniques et d'Etudes
    Inventors: Pierre Cros, Jean-Pierre Desorbay, Jean-Jacques Refoubelet
  • Patent number: 4149092
    Abstract: Emitters and rotary hydraulic displacement pumps are associated with one or a number of propeller-type transducers and connected to receivers each having a rotary hydraulic displacement motor coupled to an alternator. The emitters are connected to the receivers by means of a hydraulic circuit for an auxiliary fluid which is admitted into at least one shunt-connected energy dissipator and the flow of which is regulated as a function of the random energy variations of the natural fluid. The energy-conversion system is primarily applicable to hydroelectric power plants of the stream or river type, to wind-driven power plants and to ship propulsion.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: April 10, 1979
    Assignees: Spie-Batignolles, Societe Generale de Techniques et d'Etudes
    Inventor: Pierre Cros
  • Patent number: 3968030
    Abstract: In a chemical processing plant such as a petroleum refinery, provision is made for steam boilers and heating furnaces in which the energy consumed by the boilers for generating steam exceeds the energy consumed by the heating furnaces. The steam is produced at a pressure level which is sufficient to operate at least one back-pressure turbo-alternator, then to heat the chemical process stream to a sufficiently high temperature by heat exchange with the steam recovered at the outlet of the turbo-alternator.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: July 6, 1976
    Assignees: Spie-Batignolles, Societe Generale de Techniques et d'Etudes
    Inventor: Pierre Cros