Patents by Inventor John Le Quellec
John Le Quellec 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: 9689271Abstract: A turbine engine rotor wheel including a disk including at least one slot formed in its outer periphery for mounting roots of blades, a presser being mounted between each blade root and a bottom of the slot. The presser is bistable in position and is capable of occupying a first stable position for assembly and disassembly in which it does not exert a force on the blade root, and a second stable position in which it exerts a radial force on the blade root to hold the blade stationary and to stabilize the blade in a final position.Type: GrantFiled: May 14, 2012Date of Patent: June 27, 2017Assignee: SNECMAInventors: Luc Henri Chatenet, John Le Quellec
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Patent number: 9540093Abstract: A bladed rotor wheel for a turbine engine, the rotor wheel including a disk including, formed in its outer periphery, at least one slot for mounting the roots of blades, and a spacer mounted between each blade root and a bottom of the slot. The spacer includes at least one member of type that is bistable in position and that can occupy a first stable position for assembly or disassembly in which the member does not exert force on the blade root, and a second stable position in which the bistable member exerts a radial force on the blade root. The spacer also includes at least one resilient damper member mounted between the bottom of the slot and the blade root.Type: GrantFiled: August 2, 2012Date of Patent: January 10, 2017Assignee: SNECMAInventors: Luc Henri Chatenet, John Le Quellec
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Publication number: 20140178202Abstract: A turbine engine rotor wheel including a disk including at least one slot formed in its outer periphery for mounting roots of blades, a presser being mounted between each blade root and a bottom of the slot. The presser is bistable in position and is capable of occupying a first stable position for assembly and disassembly in which it does not exert a force on the blade root, and a second stable position in which it exerts a radial force on the blade root to hold the blade stationary and to stabilize the blade in a final position.Type: ApplicationFiled: May 14, 2012Publication date: June 26, 2014Applicant: SNECMAInventors: Luc Henri Chatenet, John Le Quellec
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Publication number: 20140161617Abstract: A bladed rotor wheel for a turbine engine, the rotor wheel including a disk including, formed in its outer periphery, at least one slot for mounting the roots of blades, and a spacer mounted between each blade root and a bottom of the slot. The spacer includes at least one member of type that is bistable in position and that can occupy a first stable position for assembly or disassembly in which the member does not exert force on the blade root, and a second stable position in which the bistable member exerts a radial force on the blade root. The spacer also includes at least one resilient damper member mounted between the bottom of the slot and the blade root.Type: ApplicationFiled: August 2, 2012Publication date: June 12, 2014Applicant: SNECMAInventors: Luc Henri Chatenet, John Le Quellec
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Patent number: 7794395Abstract: Apparatus for searching for and detecting defects on parts that are substantially inaccessible, being located behind a wall, the apparatus comprising a first endoscope for illumination in visible light and for observation, the first endoscope and pipes for feeding and spraying penetration test substances being housed together in a rod which can be passed through an orifice in the wall in order to examine a part, the apparatus further comprising a second endoscope independent of the first endoscope and the rod for illuminating in ultraviolet light and for observing the portion of the part that has been treated by the penetration test substances.Type: GrantFiled: August 8, 2008Date of Patent: September 14, 2010Assignees: SNECMA, SNECMA ServicesInventors: Isabelle Bonningue, John Le Quellec, Jean-Claude Lemoal, Michel Baccella
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Publication number: 20080297785Abstract: Apparatus for searching for and detecting defects on parts that are substantially inaccessible, being located behind a wall, the apparatus comprising a first endoscope for illumination in visible light and for observation, the first endoscope and pipes for feeding and spraying penetration test substances being housed together in a rod which can be passed through an orifice in the wall in order to examine a part, the apparatus further comprising a second endoscope independent of the first endoscope and the rod for illuminating in ultraviolet light and for observing the portion of the part that has been treated by the penetration test substances.Type: ApplicationFiled: August 8, 2008Publication date: December 4, 2008Applicant: SNECMAInventors: Isabelle Bonningue, John Le Quellec, Jean-Claude Lemoal, Michel Baccella
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Patent number: 7427262Abstract: An endoscope with deflected distal viewing, comprises a rigid tube containing observation means, themselves comprising a distal deflector prism having a viewing axis that is inclined relative to the axis of the tube, and ultraviolet light guide means housed in the tube and opening out at their distal end onto a prism for deflecting the illuminating light beam in a direction that is substantially parallel to the viewing axis. The invention applies in particular to inspecting parts by the penetration test technique in the aviation field.Type: GrantFiled: October 12, 2004Date of Patent: September 23, 2008Assignee: SNECMAInventors: Isabelle Bonningue, John Le Quellec, Jean Rovegno
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Publication number: 20050200842Abstract: Apparatus for searching for and detecting defects on parts that are substantially inaccessible, being located behind a wall, the apparatus comprising a first endoscope for illumination in visible light and for observation, the first endoscope and pipes for feeding and spraying penetration test substances being housed together in a rod which can be passed through an orifice in the wall in order to examine a part, the apparatus further comprising a second endoscope independent of the first endoscope and the rod for illuminating in ultraviolet light and for observing the portion of the part that has been treated by the penetration test substances.Type: ApplicationFiled: July 1, 2004Publication date: September 15, 2005Applicants: SNECMA MOTEURS, SNECMA SERVICESInventors: Isabelle Bonningue, John Le Quellec, Jean-Claude Lemoal, Michel Baccella
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Publication number: 20050085698Abstract: An endoscope with deflected distal viewing, comprises a rigid tube containing observation means, themselves comprising a distal deflector prism having a viewing axis that is inclined relative to the axis of the tube, and ultraviolet light guide means housed in the tube and opening out at their distal end onto a prism for deflecting the illuminating light beam in a direction that is substantially parallel to the viewing axis. The invention applies in particular to inspecting parts by the penetration test technique in the aviation field.Type: ApplicationFiled: October 12, 2004Publication date: April 21, 2005Applicant: SNECMA MOTEURSInventors: Isabelle Bonningue, John Le Quellec, Jean Rovegno