Patents by Inventor Nicolas DANIELS
Nicolas DANIELS 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: 10871079Abstract: The invention relates to a sealing assembly for a turbine engine, comprising a wheel mounted inside a sectorised ring carrying an abradable material, having at an axial end an annular groove (14) in which a circumferential rail of the casing is engaged, sealing members being partly engaged in a recess (19) of a circumferential edge of a ring sector and another part thereof being engaged in a recess of a circumferential edge circumferentially opposite a circumferentially adjacent ring sector, characterised in that each sealing member comprises an axial end portion (180a) arranged radially between the circumferential rail and two adjacent ring sectors.Type: GrantFiled: September 21, 2018Date of Patent: December 22, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Nicolas Daniel Delaporte, Anthony Pierre Beguin, Didier Noël Durand
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Publication number: 20200359793Abstract: An upstream rail of a turbine engine turbine casing, which includes a casing body extending along a longitudinal axis, includes a base including a radial face, extending substantially radially from the casing body, a plate including an upper face, extending substantially along the longitudinal axis, a connection portion between the base and the plate, including a concave face connecting the radial and upper faces, the concave and radial faces extending on either side of an edge. The upstream rail is repaired through a method including covering a surface with a solder, the surface including the upper and concave faces such that the solder extends until the edge, and machining the covered surface, in a single action, in a direction toward the radial face, so as to reshape the surface, wherein the machining of the covered surface is performed on a portion of the radial face.Type: ApplicationFiled: July 30, 2020Publication date: November 19, 2020Inventors: Nicolas Daniel DELAPORTE, Marina Wilma BILIONIERE, Thierry Michel BREUGNOT, Didier Noël DURAND
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Patent number: 10836901Abstract: According to the present disclosure, a hydrophobic polymeric composite comprising a hydrophobic polymer matrix with hydrophobically modified particles dispersed therein is provided. The hydrophobically modified particles may be derived from hydrophilic particles modified with organic moieties. The hydrophobically modified particles may also take in the form of core-shell fibers with hydrophilic particles encapsulated inside the core of said fibers or in the form of monolithic fibers embedded with hydrophilic particles. The method for making hydrophobic polymeric composite comprising each of the various hydrophobically modified particles is also provided. The hydrophobic polymer matrix can be chosen from poly(alpha-hydroxyesters), of carbonates, polyurethanes or polyalkanoates. For example, hydrophilic particles, such as barium sulphate, zirconium oxide, tantalum oxide or bismuth oxide, are dispersed in the hydrophobic biodegradable polymers, such as poly-(L-lactide) (PLLA).Type: GrantFiled: February 13, 2017Date of Patent: November 17, 2020Assignees: SINGAPORE HEALTH SERVICES PTE LTD, NANYANG TECHNOLOGICAL UNIVERSITYInventors: Subramanian Venkatraman, Yingying Huang, Hui Ying Ang, Nicolas Daniel Marie Foin, En Hou Philip Wong
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Patent number: 10814335Abstract: The invention relates to a method and device for collecting particles which may be present in an aerosol. The invention consists in electrostatically collecting all the particles in an aerosol, but uncoupling mechanisms of particle charging by unipolar ion diffusion, for charging then collecting the finest particles, from particle charging by a corona effect electrical field, for charging then collecting the biggest particles in a different collection zone from the collection zone for the finest particles. The invention also relates to the use of such a device as ionisation chamber or for evaluating the exposure of workers or consumers to nanoparticles.Type: GrantFiled: July 28, 2016Date of Patent: October 27, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Simon Clavaguera, Arnaud Guiot, Michel Pourprix, Nicolas Daniel
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Patent number: 10759010Abstract: A method for repairing an upstream rail of a turbine engine turbine casing, the casing including a casing body extending along a longitudinal axis, the upstream rail including: a base including a radial surface, extending substantially radially from the casing body; a plate including an upper surface, extending substantially along the longitudinal axis; and a connection portion between the base and the plate, including a concave surface connecting the radial surface and the upper surface, the concave surface and the radial surface extending on either side of an edge, the method including: covering a surface with a solder, the surface including the upper surface and the concave surface, such that the solder extends substantially until the edge; and a step of machining the covered surface, in a single action, in the direction of the radial surface, and at least until the edge, so as to reshape the surface.Type: GrantFiled: September 3, 2015Date of Patent: September 1, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Nicolas Daniel Delaporte, Marina Wilma Bilioniere, Thierry Michel Breugnot, Didier Noël Durand
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Publication number: 20200189044Abstract: The invention relates to a retaining device for disassembling a bladed wheel of a turbine engine. The invention is characterized in that the retaining device (100) includes: an inter-blade ring sector (101), a plurality of retaining clips (105), each retaining clip (105) cooperating with one of the damping elements (40), the retaining clips (105) extending radially while being attached circumferentially to the ring sector (101).Type: ApplicationFiled: December 12, 2019Publication date: June 18, 2020Applicant: SAFRAN AIRCRAFT ENGINESInventors: Yannick DURAND, Nicolas Daniel DELAPORTE
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Patent number: 10550712Abstract: The invention relates to a motor vane for a turbine engine, comprising a body (170) locally defining a blade provided at the radially outer end with a root (33), characterised in that it also comprises at least one sealing element (39) extending beyond the radially outer end of the root and connected to an area of the root by means of a movable mechanical link (37).Type: GrantFiled: October 22, 2015Date of Patent: February 4, 2020Assignee: Safran Aircraft EnginesInventors: Didier Noël Durand, Olivier Jean Daniel Baumas, Nicolas Daniel Delaporte
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Publication number: 20190375982Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a degradable polymeric shell surrounding a core that includes a crosslinker, which can encompass a metal, such as chromium. The core-shell particles can be provided with a gel-forming polymer, such as a polyacrylamide, into a subterranean reservoir having conditions such that the shell of the core-shell polymer degrades, and the so-released metal is effective to at least partially crosslink the gel-forming polymer to form a gel. The so-formed gel can be effective to control water flow through the subterranean reservoir, such as in relation to a waterflood of the reservoir.Type: ApplicationFiled: August 21, 2019Publication date: December 12, 2019Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Nicolas Daniel Huffman, Jeffrey Brent Mecham
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Patent number: 10421894Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a degradable polymeric shell surrounding a core that includes a crosslinker, which can encompass a metal, such as chromium. The core-shell particles can be provided with a gel-forming polymer, such as a polyacrylamide, into a subterranean reservoir having conditions such that the shell of the core-shell polymer degrades, and the so-released metal is effective to at least partially crosslink the gel-forming polymer to form a gel. The so-formed gel can be effective to control water flow through the subterranean reservoir, such as in relation to a waterflood of the reservoir.Type: GrantFiled: June 27, 2017Date of Patent: September 24, 2019Assignee: Research Triangle InstituteInventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Nicolas Daniel Huffman, Jeffrey Brent Mecham
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Publication number: 20190216735Abstract: According to the present disclosure, a liposomal formulation comprising at least one uncharged phospholipid without cholesterol and at least one pharmaceutical agent, wherein the at least one uncharged phospholipid forms one or more lipid bilayers without cholesterol encapsulating the at least one pharmaceutical agent, is provided. The use(s) of such a liposomal formulation and method of producing such a liposomal formulation are also provided.Type: ApplicationFiled: September 14, 2017Publication date: July 18, 2019Inventors: Subramanian VENKATRAMAN, Yingying HUANG, Amrita NAGLE, Jayaganesh V. NATARAJAN, Nicolas Daniel Marie FOIN, Tze Tec CHONG, Jie Liang PHUA
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Patent number: 10293924Abstract: The runway state determined on the ground by an aircraft and provided to the aircraft on approach does not make it possible to account for possible degradation of the runway occurring since the previous determination of that runway state. Updating of this runway state on the basis of a simple comparison between a desired deceleration and an observed deceleration resulting from a degraded runway is not satisfactory either. The disclosure herein thus provides for obtaining a local stopping distance according to a local runway state characterizing a runway zone on which the aircraft is in movement at the time of the landing, this local stopping distance being estimated based on local measurements made in the aircraft; obtaining a reference stopping distance according to a reference runway state; then comparing these two distances with each other to determine whether the local runway state is more degraded than the reference runway state.Type: GrantFiled: December 7, 2016Date of Patent: May 21, 2019Assignees: Airbus (S.A.S.), Airbus Operations (S.A.S.)Inventors: Erwan Le-Bouedec, Rémi Morin, Jérémie Briere, Mathieu Reguerre, Nicolas Daniel
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Publication number: 20190142590Abstract: The present invention relates to a device for cardiac valve repair, the device comprising: at least one upstream anchoring means adapted to anchor to at least one tissue site, the tissue site located upstream with respect to a heart valve of a patient; and a coaptation structure arranged to extend from the upstream anchoring means, the coaptation structure comprising a free end, wherein the coaptation structure is operable to extend across the heart valve and locate the free end downstream from the heart valve and the coaptation structure operable to coapt with at least one heart valve leaflet of the patient's heart to prevent and/or minimize a backflow of blood. The present invention is suitable for the treatment of heart valves using minimally invasive approaches. Additionally, the present invention is directed to a method of implanting a device for cardiac valve repair in a patient's heart.Type: ApplicationFiled: June 12, 2017Publication date: May 16, 2019Applicant: SINGAPORE HEALTH SERVICES PTE. LTD.Inventors: Khung Keong YEO, Nicolas Daniel Marie FOIN
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Publication number: 20190085713Abstract: The invention relates to a sealing assembly for a turbine engine, comprising a wheel mounted inside a sectorised ring carrying an abradable material, having at an axial end an annular groove (14) in which a circumferential rail of the casing is engaged, sealing members being partly engaged in a recess (19) of a circumferential edge of a ring sector and another part thereof being engaged in a recess of a circumferential edge circumferentially opposite a circumferentially adjacent ring sector, characterised in that each sealing member comprises an axial end portion (180a) arranged radially between the circumferential rail and two adjacent ring sectors.Type: ApplicationFiled: September 21, 2018Publication date: March 21, 2019Inventors: Nicolas Daniel DELAPORTE, Anthony Pierre BEGUIN, Didier Noël DURAND
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Publication number: 20190048182Abstract: According to the present disclosure, a hydrophobic polymeric composite comprising a hydrophobic polymer matrix with hydrophobically modified particles dispersed therein is provided. The hydrophobically modified particles may be derived from hydrophilic particles modified with organic moieties. The hydrophobically modified particles may also take in the form of core-shell fibers with hydrophilic particles encapsulated inside the core of said fibers or in the form of monolithic fibers embedded with hydrophilic particles. The method for making hydrophobic polymeric composite comprising each of the various hydrophobically modified particles is also provided. The hydrophobic polymer matrix can be chosen from poly(alpha-hydroxyesters), of carbonates, polyurethanes or polyalkanoates. For example, hydrophilic particles, such as barium sulphate, zirconium oxide, tantalum oxide or bismuth oxide, are dispersed in the hydrophobic biodegradable polymers, such as poly-(L-lactide) (PLLA).Type: ApplicationFiled: February 13, 2017Publication date: February 14, 2019Inventors: Subramanian VENKATRAMAN, Yingying HUANG, Hui Ying ANG, Nicolas Daniel Marie FOIN, En Hou Philip WONG
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Publication number: 20190031951Abstract: The present disclosure relates to delivery and release systems wherein a plurality of particles is provided, and the particles are formed of a vehicle component and a cargo component. The systems and methods particularly can be useful in delivery of various chemicals to a petroleum reservoir. The vehicle component can undergo a change in situ such that at least a portion of the cargo component is released.Type: ApplicationFiled: January 17, 2017Publication date: January 31, 2019Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Sarah Dorothy Shepherd, Nicolas Daniel Huffman, Jeffrey Brent Mecham
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Publication number: 20180200727Abstract: The invention relates to a method and device for collecting particles which may be present in an aerosol. The invention consists in electrostatically collecting all the particles in an aerosol, but uncoupling mechanisms of particle charging by unipolar ion diffusion, for charging then collecting the finest particles, from particle charging by a corona effect electrical field, for charging then collecting the biggest particles in a different collection zone from the collection zone for the finest particles. The invention also relates to the use of such a device as ionisation chamber or for evaluating the exposure of workers or consumers to nanoparticles.Type: ApplicationFiled: July 28, 2016Publication date: July 19, 2018Inventors: Simon CLAVAGUERA, Arnaud GUIOT, Michel POURPRIX, Nicolas DANIEL
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Publication number: 20180058258Abstract: A vane (54) for a turbomachine, comprises an aerodynamic profile (61) formed from a body (70) made from a first material, and an add-on part (74) fixed to the body (70) by brazing and made from a second material. The add-on part (74) is housed in a recess (72) formed in a median part of an end part (73) of the body (70), between extreme parts (73A, 73B) of the end part, such that the add-on part (74) forms a median portion of the leading edge (62) of the aerodynamic profile (61). The second material has a coefficient of linear thermal expansion along the direction of the leading edge greater than that of the first material, at a normal operating temperature of the vane (54), which reduces risks of cracks appearing in the aerodynamic profile (61).Type: ApplicationFiled: August 28, 2017Publication date: March 1, 2018Inventors: Didier Noël Durand, Nicolas Daniel Delaporte, Olivier Jean Daniel Baumas
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Publication number: 20170369766Abstract: The present disclosure relates to delivery and release systems, such as core-shell particles. An exemplary composition according to the disclosure can include a degradable polymeric shell surrounding a core that includes a crosslinker, which can encompass a metal, such as chromium. The core-shell particles can be provided with a gel-forming polymer, such as a polyacrylamide, into a subterranean reservoir having conditions such that the shell of the core-shell polymer degrades, and the so-released metal is effective to at least partially crosslink the gel-forming polymer to form a gel. The so-formed gel can be effective to control water flow through the subterranean reservoir, such as in relation to a waterflood of the reservoir.Type: ApplicationFiled: June 27, 2017Publication date: December 28, 2017Inventors: Leah Marie Johnson, Ginger Denison Rothrock, Chasity Antoninette Norton, Nicolas Daniel Huffman, Jeffrey Brent Mecham
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Publication number: 20170335709Abstract: The invention relates to a motor vane for a turbine engine, comprising a body (170) locally defining a blade provided at the radially outer end with a root (33), characterised in that it also comprises at least one sealing element (39) extending beyond the radially outer end of the root and connected to an area of the root by means of a movable mechanical link (37).Type: ApplicationFiled: October 22, 2015Publication date: November 23, 2017Inventors: Didier Noël Durand, Olivier Jean Daniel Bauma, Nicolas Daniel Delaporte
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Publication number: 20170312868Abstract: A method for repairing an upstream rail of a turbine engine turbine casing, the casing including a casing body extending along a longitudinal axis, the upstream rail including: a base including a radial surface, extending substantially radially from the casing body; a plate including an upper surface, extending substantially along the longitudinal axis; and a connection portion between the base and the plate, including a concave surface connecting the radial surface and the upper surface, the concave surface and the radial surface extending on either side of an edge, the method including: covering a surface with a solder, the surface including the upper surface and the concave surface, such that the solder extends substantially until the edge; and a step of machining the covered surface, in a single action, in the direction of the radial surface, and at least until the edge, so as to reshape the surface.Type: ApplicationFiled: September 3, 2015Publication date: November 2, 2017Inventors: Nicolas Daniel DELAPORTE, Marina Wilma BILIONIERE, Thierry Michel BREUGNOT, Didier Noël DURAND