Patents by Inventor Cedric Magret

Cedric Magret 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: 9771968
    Abstract: A vaned wheel device traversed by a radial drive shaft includes radial arms, one of which contains the shaft, and stationary vanes manufactured separately from the casing and a ferrule and assembled thereto. A sleeve encompassing the shaft traverses the casing and serves to support a bearing for supporting the shaft with positional accuracy, and maintaining tightness by forming a single cavity with the radial arm cavities traversing the shaft.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 26, 2017
    Assignee: SNECMA
    Inventors: Thierry Francois Maurice Duchatelle, Virginie Guilbert, Cedric Magret, Thierry Georges Paul Papin
  • Publication number: 20140135134
    Abstract: A vaned wheel device traversed by a radial drive shaft includes radial arms, one of which contains the shaft, and stationary vanes manufactured separately from the casing and a ferrule and assembled thereto. A sleeve encompassing the shaft traverses the casing and serves to support a bearing for supporting the shaft with positional accuracy, and maintaining tightness by forming a single cavity with the radial arm cavities traversing the shaft.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 15, 2014
    Applicant: SNECMA
    Inventors: Thierry Francois Maurice Duchatelle, Virgine Guilbert, Cedric Magret, Thierry Georges Paul Papin
  • Patent number: 8646978
    Abstract: A decoupling system for a rotary shaft of an aircraft turbojet, the decoupling system including: a rolling bearing including rolling elements inserted between a first ring fastened to a stationary bearing support and a second ring mounted in a mounting chamber fastened to a rotary shaft; a transmission mechanism transmitting rotary torque from the rotary shaft to the second ring; a mechanism allowing the second ring to move radially relative to the mounting chamber when a static force associated with an unbalance affecting the rotary shaft exceeds a predetermined threshold; and a plurality of leaktight flexible bags interposed between the second ring and the mounting chamber and each including a heterogeneous structure including a porous capillary solid matrix and an associated liquid relative to which the matrix is lyophobic.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: February 11, 2014
    Assignee: SNECMA
    Inventors: Edouard Joseph Jadczak, Cedric Magret, Pierrick Ollivier, Arnaud Fabrice Quenardel
  • Publication number: 20130022448
    Abstract: A decoupling system for a rotary shaft of an aircraft turbojet, the decoupling system including: a rolling bearing including rolling elements inserted between a first ring fastened to a stationary bearing support and a second ring mounted in a mounting chamber fastened to a rotary shaft; a transmission mechanism transmitting rotary torque from the rotary shaft to the second ring; a mechanism allowing the second ring to move radially relative to the mounting chamber when a static force associated with an unbalance affecting the rotary shaft exceeds a predetermined threshold; and a plurality of leaktight flexible bags interposed between the second ring and the mounting chamber and each including a heterogeneous structure including a porous capillary solid matrix and an associated liquid relative to which the matrix is lyophobic.
    Type: Application
    Filed: January 12, 2011
    Publication date: January 24, 2013
    Applicant: SNECMA
    Inventors: Edouard Joseph Jadczak, Cedric Magret, Pierrick Ollivier, Arnaud Fabrice Quenardel
  • Patent number: 8172509
    Abstract: A device for detecting breakage of a turbomachine shaft is disclosed. The device includes a shaft having an upstream end and a downstream end; a rod having an upstream end and a downstream end, and placed coaxially inside the shaft, the downstream end of the rod being securely fastened to the downstream end of the shaft and the upstream end of the rod being free to rotate relative to the upstream and of the shaft; and a sensor suitable for detecting a difference in speed of rotation between the upstream end of the rod and the upstream end of the shaft.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: May 8, 2012
    Assignee: SNECMA
    Inventors: Jacques Rene Bart, Didier Rene Andre Escure, Cedric Magret, Stephane Rousselin
  • Publication number: 20090123269
    Abstract: The present invention relates to detecting breakage of a shaft of a turbomachine, in particular of the aviation type. The invention relates in particular to a device designed to perform such detection. According to the invention, the device for detecting breakage of a turbomachine shaft comprises: a shaft having an upstream end and a downstream end; a rod having an upstream end and a downstream end, and placed coaxially inside the shaft, the downstream end of the rod being securely fastened to the downstream end of the shaft and the upstream end of the rod being free to rotate relative to the upstream and of the shaft; and a sensor suitable for detecting a difference in speed of rotation between the upstream end of the rod and the upstream end of the shaft.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 14, 2009
    Applicant: SNECMA
    Inventors: Jacques Rene BART, Didier Rene Andre ESCURE, Cedric MAGRET, Stephane ROUSSELIN