Patents by Inventor Pascal Courtin

Pascal Courtin 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: 10698393
    Abstract: The invention pertains to a method of manufacturing a population of parts produced with a manufacturing device, based on the analysis of at least one statistical indicator representative of a characteristic dimension of the parts, according to which: a) a sample comprising a number n of parts is collected from among the parts produced with the manufacturing device; b) the characteristic dimension of each part of the sample is measured, and a measured value of the statistical indicator is calculated for the sample; c) a mathematical expectation of the proportion of parts which are noncompliant with respect to a specification regarding the characteristic dimension is calculated, said calculation being performed on the basis of the measured value of the statistical indicator for the sample collected and of the number n of parts of the sample; d) the mathematical expectation of the proportion of parts that are noncompliant calculated is compared with a threshold value of proportion of noncompliant parts; e) the m
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 30, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Olivier Ferry, Arnaud Cambefort, Pascal Courtin, Nicolas Hardouin, Charles Cleret De Langavant
  • Patent number: 10656633
    Abstract: The invention pertains to a method of manufacturing parts produced with a manufacturing device, based on the analysis of at least one statistical indicator representative of a characteristic dimension of the parts, according to which: a) in the course of time several samples are collected, each sample comprising several parts produced with the manufacturing device; b) the characteristic dimension of each part of the sample is measured; c) for each sample collected a weighted mean and a weighted standard deviation of the characteristic dimension are calculated according to an exponential weighting on the basis of a mean and standard deviation of the characteristic dimensions measured on the parts of said sample, of weighted means and of weighted standard deviations of the characteristic dimension which are calculated for previously collected samples; d) for each sample collected a value of the statistical indicator is calculated on the basis of the weighted mean and of the weighted standard deviation thus calc
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 19, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Olivier Ferry, Arnaud Cambefort, Pascal Courtin, Nicolas Hardouin, Charles Cleret De Langavant
  • Patent number: 10613512
    Abstract: The invention pertains to a method of manufacturing parts, where each part must satisfy a global dimensional requirement on a specific dimension of said part akin to a tolerance stack up comprising at least two tolerances, each tolerance corresponding to a characteristic dimension of the part, where: the global dimensional requirement is fixed so that the specific dimension of the parts has a mean ?0 and a standard deviation oG lying in a global acceptance range constructed on the basis of one or more statistical criteria; a reference dimension is chosen from among the characteristic dimensions, and a mean ??? and a standard deviation oref of said reference dimension are calculated on the basis of a sample of collected parts; a range of acceptance for the other characteristic dimensions of the tolerance stack up constructed with the same statistical criterion or criteria as the global acceptance range is calculated on the basis of the global acceptance range and on the basis of the mean ITO and the standard d
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: April 7, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Olivier Ferry, Arnaud Cambefort, Charles Cleret De Langavant, Pascal Courtin, Nicolas Hardouin
  • Publication number: 20180267521
    Abstract: The invention pertains to a method of manufacturing parts produced with a manufacturing device, based on the analysis of at least one statistical indicator representative of a characteristic dimension of the parts, according to which: a) in the course of time several samples are collected, each sample comprising several parts produced with the manufacturing device; b) the characteristic dimension of each part of the sample is measured; c) for each sample collected a weighted mean and a weighted standard deviation of the characteristic dimension are calculated according to an exponential weighting on the basis of a mean and standard deviation of the characteristic dimensions measured on the parts of said sample, of weighted means and of weighted standard deviations of the characteristic dimension which are calculated for previously collected samples; d) for each sample collected a value of the statistical indicator is calculated on the basis of the weighted mean and of the weighted standard deviation thus calc
    Type: Application
    Filed: December 4, 2015
    Publication date: September 20, 2018
    Inventors: Olivier FERRY, Arnaud CAMBEFORT, Pascal COURTIN, Nicolas HARDOUIN, Charles CLERET DE LANGAVANT
  • Publication number: 20180267519
    Abstract: The invention pertains to a method of manufacturing parts produced with a manufacturing device, based on the analysis of at least one statistical indicator representative of a characteristic dimension of the parts, according to which: a) in the course of time several samples are collected, each sample comprising several parts produced with the manufacturing device; b) the characteristic dimension of each part of the sample is measured; c) for each sample collected a mean ? and a standard deviation ? of the characteristic dimension measured are calculated, and then a value of a statistical indicator I3C defined according to formula (I) is calculated for each sample collected, where: o Ccmax is a maximum centring coefficient imposed for the manufacture of the parts; o TS is an upper tolerance of the characteristic dimension measured; o TI is a lower tolerance of the characteristic dimension measured; d) the value of the statistical indicator I3C thus calculated for the sample collected is compared with a refere
    Type: Application
    Filed: December 4, 2015
    Publication date: September 20, 2018
    Inventors: Olivier FERRY, Arnaud CAMBEFORT, Pascal COURTIN, Nicolas HARDOUIN, Charles CLERET DE LANGAVANT
  • Publication number: 20180267520
    Abstract: The invention relates to a process for manufacturing parts that is based on the simultaneous analysis of a plurality of different statistical indicators representative of a characteristic size of the parts, in which: an overall validation set corresponding to a set-theoretic combination of the various validation sets of each statistical indicator is defined; an overall sanction set corresponding to a set-theoretic combination of the various sanction sets of each statistical indicator is defined; and an overall control set comprising the pairs (?;?) not contained in the overall validation set and in the overall sanction set is defined; and it is determined to which overall set, from the overall validation set, the overall sanction set and the overall control set, the pair comprising the mean ?m and the standard deviation ?m of the measured characteristic size belongs, and the manufacture is controlled depending on the overall set thus determined.
    Type: Application
    Filed: December 4, 2015
    Publication date: September 20, 2018
    Applicant: Safran Aircraft Engines
    Inventors: Olivier FERRY, Arnaud CAMBEFORT, Pascal COURTIN, Nicolas HARDOUIN, Charles CLERET DE LANGAVANT
  • Publication number: 20180267508
    Abstract: The invention pertains to a method of manufacturing parts, where each part must satisfy a global dimensional requirement on a specific dimension of said part akin to a tolerance stack up comprising at least two tolerances, each tolerance corresponding to a characteristic dimension of the part, where: the global dimensional requirement is fixed so that the specific dimension of the parts has a mean ?0 and a standard deviation oG lying in a global acceptance range constructed on the basis of one or more statistical criteria; a reference dimension is chosen from among the characteristic dimensions, and a mean ??? and a standard deviation oref of said reference dimension are calculated on the basis of a sample of collected parts; a range of acceptance for the other characteristic dimensions of the tolerance stack up constructed with the same statistical criterion or criteria as the global acceptance range is calculated on the basis of the global acceptance range and on the basis of the mean ??? and the standard d
    Type: Application
    Filed: December 4, 2015
    Publication date: September 20, 2018
    Inventors: Olivier FERRY, Arnaud CAMBEFORT, Charles CLERET DE LANGAVANT, Pascal COURTIN, Nicolas HARDOUIN
  • Publication number: 20170329317
    Abstract: The invention pertains to a method of manufacturing a population of parts produced with a manufacturing device, based on the analysis of at least one statistical indicator representative of a characteristic dimension of the parts, according to which: a) a sample comprising a number n of parts is collected from among the parts produced with the manufacturing device; b) the characteristic dimension of each part of the sample is measured, and a measured value of the statistical indicator is calculated for the sample; c) a mathematical expectation of the proportion of parts which are noncompliant with respect to a specification regarding the characteristic dimension is calculated, said calculation being performed on the basis of the measured value of the statistical indicator for the sample collected and of the number n of parts of the sample; d) the mathematical expectation of the proportion of parts that are noncompliant calculated is compared with a threshold value of proportion of noncompliant parts; e) the m
    Type: Application
    Filed: December 4, 2015
    Publication date: November 16, 2017
    Applicant: Safran Aircraft Engines
    Inventors: Olivier FERRY, Arnaud CAMBEFORT, Pascal COURTIN, Nicolas HARDOUIN, Charles CLERET DE LANGAVANT
  • Patent number: 9410433
    Abstract: An inter-blade sealing for a turbine or compressor wheel of a turbine engine includes inserts engaged in longitudinal cavities in side edges of platforms of blades and bearing, in operation, against facing side edges of platforms of adjacent blades. Each insert has a cylindrical elongate shape and includes in its outer cylindrical surface at least one annular groove for passing platform cooling air.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 9, 2016
    Assignee: SNECMA
    Inventors: Damien Alquier, Jacques Auguste Amedee Boury, Pascal Courtin, Huu-Thanh Tran
  • Publication number: 20130121810
    Abstract: An inter-blade sealing for a turbine or compressor wheel of a turbine engine includes inserts engaged in longitudinal cavities in side edges of platforms of blades and bearing, in operation, against facing side edges of platforms of adjacent blades. Each insert has a cylindrical elongate shape and includes in its outer cylindrical surface at least one annular groove for passing platform cooling air.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: SNECMA
    Inventors: Damien Alquier, Jacques Auguste Amedee Boury, Pascal Courtin, Huu-Thanh Tran
  • Publication number: 20100127022
    Abstract: A valve is disclosed for dispensing small quantities of solid material in powder or granular form. The valve includes a valve housing defining a generally vertical flow passage through the housing, and a valve member rotatable in the valve housing about a generally horizontal axis of rotation between open and closed positions. In one embodiment, a slot is provided in the valve body. The valve body and slot are configured such that the slot communicates with both the inlet and the outlet of the flow passage when the valve member is open, and such that the slot communicates with the inlet but not the outlet of the flow passage when the valve member is closed. Other embodiments are disclosed.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 27, 2010
    Applicant: SYMYX TECHNOLOGIES, INC.
    Inventors: Antonio Valella, Loic Pluvinage, Pascal Courtin
  • Publication number: 20090090433
    Abstract: The invention is directed to a dispensing unit suitable to precise! dispense material in powder and/or granular form. The dispensing device comprises a gate valve opening sealingly closed by a blend. A control unit, which is interconnected to a scaling device, controls the opening of the gate valve opening by the position of the blend. The precise amount of the material is adjusted in relation to the signal of the scaling device.
    Type: Application
    Filed: April 13, 2006
    Publication date: April 9, 2009
    Applicant: Symyx Technologies Europe SA
    Inventors: Loic Pluvinage, Antonio Valella, Gian-Luigi Berini, Pascal Courtin