Patents by Inventor Alain Bassot
Alain Bassot 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).
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Patent number: 9182379Abstract: A method of carrying out a vibratory fatigue test of a mechanical part having a fatigue endurance limit, the part including a repair extending partly on a first zone of the part, the method including a preliminary test phase including: selecting a loading mode of the part; determining a cutting of the part defining a truncated part, the cutting of the part being defined to obtain a loading level in the repaired zone equal to the maximum value of an abatement to be validated; selecting a measuring device for the fine control of the fatigue test by the measurement of a stress applied to a point of the part; determining a resonance frequency of the truncated part according to the selected loading mode; implementing a loading according to the selected mode at a given level of the truncated part at the resonance frequency up to rupture of the part.Type: GrantFiled: July 15, 2013Date of Patent: November 10, 2015Assignee: SNECMAInventors: Jeremy Fanelli, Alain Bassot, Michéle Marois
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Publication number: 20140130598Abstract: A method of carrying out a vibratory fatigue test of a mechanical part having a fatigue endurance limit, the part including a repair extending partly on a first zone of the part, the method including a preliminary test phase including: selecting a loading mode of the part; determining a cutting of the part defining a truncated part, the cutting of the part being defined to obtain a loading level in the repaired zone equal to the maximum value of an abatement to be validated; selecting a measuring device for the fine control of the fatigue test by the measurement of a stress applied to a point of the part; determining a resonance frequency of the truncated part according to the selected loading mode; implementing a loading according to the selected mode at a given level of the truncated part at the resonance frequency up to rupture of the part.Type: ApplicationFiled: July 15, 2013Publication date: May 15, 2014Inventors: Jeremy Fanelli, Alain Bassot, Michèle Marois
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Patent number: 8408068Abstract: A device for testing a coating for a turbomachine rotor disk blade root, including two test piece halves, each including a bearing surface coated with the coating, one counter test piece including two bearing surfaces, and a machine including a first holding system for the counter test piece and a second holding system for holding the test piece halves around the counter test piece. With a tensile mechanism, the holding systems are subjected to predetermined tensile cycles along the tensile axis, during which the tensile force is transmitted from one holding system to the other via the respective bearing surfaces contacting the counter test piece and the test piece halves. The second holding system includes a resilient return mechanism allowing for the two test piece halves to open up in a direction perpendicular to the tensile direction.Type: GrantFiled: February 25, 2009Date of Patent: April 2, 2013Assignee: SNECMAInventors: Alain Bassot, Laurent Dudon, Anne-Claire Perriau
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Patent number: 8387467Abstract: A method for testing a coating for blade roots, includes: providing a disk test piece including at least one bearing surface and a blade test piece including at least one bearing surface coated with the coating to be tested, the blade test piece including two test piece halves adapted to be engaged on either side of the disk test piece, and subjecting the blade test piece engaged with the disk test piece to tensile cycles during which the test pieces undergo tensile stress with respect to each other in a tensile direction, the tensile strain being transmitted via the bearing surfaces contacting the blade test piece and the disk test piece. The method allows for very faithful reproduction of the behavior and ageing of the coating and thus allows for accurate evaluation of the quality of the coatings.Type: GrantFiled: February 25, 2009Date of Patent: March 5, 2013Assignee: SNECMAInventors: Alain Bassot, Laurent Dudon, Anne-Claire Perriau
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Publication number: 20110138926Abstract: A method for testing a coating for blade roots, includes: providing a disk test piece including at least one bearing surface and a blade test piece including at least one bearing surface coated with the coating to be tested, the blade test piece including two test piece halves adapted to be engaged on either side of the disk test piece, and subjecting the blade test piece engaged with the disk test piece to tensile cycles during which the test pieces undergo tensile stress with respect to each other in a tensile direction, the tensile strain being transmitted via the bearing surfaces contacting the blade test piece and the disk test piece. The method allows for very faithful reproduction of the behavior and ageing of the coating and thus allows for accurate evaluation of the quality of the coatings.Type: ApplicationFiled: February 25, 2009Publication date: June 16, 2011Applicant: SNECMAInventors: Alain Bassot, Laurent Dudon, Anne-Claire Perriau
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Publication number: 20110000308Abstract: A device for testing a coating for a turbomachine rotor disk blade root, including two test piece halves, each including a bearing surface coated with the coating, one counter test piece including two bearing surfaces, and a machine including a first holding system for the counter test piece and a second holding system for holding the test piece halves around the counter test piece. With a tensile mechanism, the holding systems are subjected to predetermined tensile cycles along the tensile axis, during which the tensile force is transmitted from one holding system to the other via the respective bearing surfaces contacting the counter test piece and the test piece halves. The second holding system includes a resilient return mechanism allowing for the two test piece halves to open up in a direction perpendicular to the tensile direction.Type: ApplicationFiled: February 25, 2009Publication date: January 6, 2011Applicant: SNECMAInventors: Alain Bassot, Laurent Dudon, Anne-Claire Perriau
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Patent number: 7108484Abstract: A restraining device for a fan blade root, in which a packing member is constituted by a metal structure having hollowed out portions filed in by overmolding with a semi-rigid elastomer material, in particular on a lateral edge concave side between an upstream end zone and a downstream end zone, which end zones are entirely of metal structure, on a lateral edge convex side between the end zones and a central zone that is essentially of metal structure, and on two top portions of the packing member that extend between the elastomer lateral edges on either side of the metal central zone. The metal structure also includes a bottom recess extending over its entire surface between the upstream end zone and the downstream end zone. Hence, the metal structure behaves like a spring blade when the blade turns following a violent impact.Type: GrantFiled: June 25, 2003Date of Patent: September 19, 2006Assignee: Snecma MoteursInventors: Anne Thenaisie, Alain Bassot, Eric Inghels, Hervé Buisson, Christophe Follonnier, Patrick Reghezza, Bruce Pontoizeau
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Publication number: 20050254951Abstract: A restraining device for a fan blade root, in which a packing member is constituted by a metal structure having hollowed out portions filed in by overmolding with a semi-rigid elastomer material, in particular on a lateral edge concave side between an upstream end zone and a downstream end zone, which end zones are entirely of metal structure, on a lateral edge convex side between the end zones and a central zone that is essentially of metal structure, and on two top portions of the packing member that extend between the elastomer lateral edges on either side of the metal central zone. The metal structure also includes a bottom recess extending over its entire surface between the upstream end zone and the downstream end zone. Hence, the metal structure behaves like a spring blade when the blade turns following a violent impact.Type: ApplicationFiled: June 25, 2003Publication date: November 17, 2005Inventors: Anne Thenaisie, Alain Bassot, Eric Inghels, Herve Buisson, Chirstophe Follonnier, Patrick Reghezza, Bruce Pontoizeau
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Patent number: 6910866Abstract: A fan rotor includes a disk having a rim with a plurality of substantially axial grooves that are spaced apart angularly. Removable blades extend radially outwards from the periphery of the disk. Each blade has a blade root in a respective groove. A downstream flange plate can be secured to the disk with the downstream faces of the blade roots being in abutment against the downstream flange plate. An upstream flange plate is secured to the disk so as to retain the blade roots in the grooves. In the rotor, the upstream flange plate is fitted on its downstream face with a resilient device configured to exert sufficient force on the upstream faces of the blade roots, after assembly, to prevent an axial displacement of the blades during normal operation (apart from exceptional events of the type in which foreign bodies are ingested or blades are lost).Type: GrantFiled: September 11, 2003Date of Patent: June 28, 2005Assignee: Snecma MoteursInventors: Alain Bassot, Jean-Claude Bonny, Philippe Even, Pierre Lamothe, Alain Madec, Patrick Reghezza
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Publication number: 20040126240Abstract: The invention relates to a fan rotor comprising a disk having a rim with a plurality of substantially axial grooves that are regularly spaced apart angularly, a plurality of removable blades extending radially outwards from the periphery of said disk, each blade having a blade root received in a respective groove, a downstream flange plate secured to said disk with the downstream faces of the blade roots being in abutment thereagainst, and a removable upstream flange plate secured to said disk for the purpose of retaining the blade roots in the grooves. In the rotor, the upstream flange plate is fitted on its downstream face with resilient means for exerting sufficient force on the upstream faces of the blade roots, after assembly, to prevent any axial displacement of the blades during normal operation of the engine (apart from exceptional events of the type in which foreign bodies are ingested or blades are lost).Type: ApplicationFiled: September 11, 2003Publication date: July 1, 2004Applicant: SNECMA MOTEURSInventors: Alain Bassot, Jean-Claude Bonny, Philippe Even, Pierre Lamothe, Alain Madec, Patrick Reghezza