Patents by Inventor Pierre-Andre Bui
Pierre-Andre Bui 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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Publication number: 20240149491Abstract: A system for coating reinforcing fiber of a composite component is provided, The system includes a frame including at least one contact location for contacting the reinforcing fiber and a movement mechanism including an actuator. The movement mechanism is operably coupled to the frame to induce movement of the reinforcing fiber relative to the frame. Methods are also provided for coating such a fiber.Type: ApplicationFiled: November 9, 2022Publication date: May 9, 2024Inventors: Guido Teti, Steven Robert Hayashi, Pierre-Andre Bui, Wiktor Serafin, Timothy Patrick Smith, James Anthony Ruud
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Publication number: 20240150899Abstract: Frame for use in coating a reinforcing fiber are provided. The frame includes a first frame end having a first cross-sectional shape. The first cross-sectional shape has one or more contact locations that are spaced apart from each other. The reinforcing fiber contacts the first frame end at the one or more contact locations. Methods are also provided for coating such a fiber.Type: ApplicationFiled: November 9, 2022Publication date: May 9, 2024Inventors: Guido Teti, Pierre-Andre Bui, Steven Robert Hayashi, Wiktor Serafin, Timothy Patrick Smith, James Anthony Ruud
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Patent number: 10370292Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process. The method may also include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg, such as a prepreg tape. The ceramic fibers may be substantially SiC fibers, for example.Type: GrantFiled: October 5, 2017Date of Patent: August 6, 2019Assignee: General Electric CompanyInventors: Daniel Gene Dunn, James Anthony Ruud, Pierre-Andre Bui, Gregory Scot Corman, James Scott Vartuli
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Patent number: 10052789Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include at least one of depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process and impregnating the ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg. In some embodiments, the ceramic fibers of the planar array may include a coating, and the method may include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg.Type: GrantFiled: November 25, 2015Date of Patent: August 21, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Daniel Gene Dunn, James Anthony Ruud, Pierre-Andre Bui, Gregory Scot Corman, James Scott Vartuli
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Publication number: 20180029928Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process. The method may also include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg, such as a prepreg tape. The ceramic fibers may be substantially SiC fibers, for example.Type: ApplicationFiled: October 5, 2017Publication date: February 1, 2018Inventors: Daniel Gene DUNN, James Anthony RUUD, Pierre-Andre BUI, Gregory Scot CORMAN, James Scott VARTULI
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Patent number: 9815736Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process. The method may also include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg, such as a prepreg tape. The ceramic fibers may be substantially SiC fibers, for example.Type: GrantFiled: November 25, 2015Date of Patent: November 14, 2017Assignee: General Electric CompanyInventors: Daniel Gene Dunn, James Anthony Ruud, Pierre-Andre Bui, Gregory Scot Corman, James Scott Vartuli
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Publication number: 20170144329Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include at least one of depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process and impregnating the ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg. In some embodiments, the ceramic fibers of the planar array may include a coating, and the method may include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg.Type: ApplicationFiled: November 25, 2015Publication date: May 25, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Daniel Gene DUNN, James Anthony RUUD, Pierre-Andre BUI, Gregory Scot CORMAN, James Scott VARTULI
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Publication number: 20170144925Abstract: The present application provides methods and apparatus for processing ceramic fibers for the manufacture of ceramic matrix composites (CMCs). One method may include providing at least one frame including a planar array of unidirectional ceramic fibers extending across a void thereof. The method may further include depositing a coating on the ceramic fibers of the at least one frame via a chemical vapor deposition (CVD) process. The method may also include impregnating the coated ceramic fibers with a slurry including a ceramic matrix precursor composition to form at least one CMC prepreg, such as a prepreg tape. The ceramic fibers may be substantially SiC fibers, for example.Type: ApplicationFiled: November 25, 2015Publication date: May 25, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Daniel Gene DUNN, James Anthony RUUD, Pierre-Andre BUI, Gregory Scot CORMAN, James Scott VARTULI
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Publication number: 20080187093Abstract: A method and apparatus are provided for generating high frequency electromagnetic energy using a secondary emission electron source. An x-ray source is therefore provided having a primary electron emitter, a secondary emission member, and an anode. The primary electron emitter provides a primary electron current directed to the secondary emission member. The secondary emission member then generates a secondary electron current which causes x-ray generation when impinging upon the anode.Type: ApplicationFiled: February 6, 2007Publication date: August 7, 2008Inventors: John Scott Price, Loucas Tsakalakos, Pierre-Andre Bui, Bruce Matthew Dunham
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Publication number: 20070257592Abstract: By patterning a catalyst layer in a micrometer scale and growing nanotubes on it, the emission area is formed by many small emitter islands. Each emitter island comprises finite randomly aligned nanotubes in a nominal density. Due to the vast number of gaps between emitter islands, relatively more nanotubes are exposed to the edge region of the emitter, which effectively increases the average inter-spacing of nanotubes. The field shielding effect is significantly reduced this way.Type: ApplicationFiled: December 19, 2006Publication date: November 8, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: Yun Li, Brian James Grimmond, Hai Lu, Pierre Andre Bui, Joseph Darryl Michael
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Patent number: 7247670Abstract: A nanostructure having at least one nanotube and at least one chemical moiety non-covalently attached to the at least one nanotube. At least one dendrimer is bonded to the chemical moiety. The chemical moiety may include soluble polymers, soluble oligomers, and combinations thereof. A method of dispersing at least one nanotube is also described. The method includes providing at least one nanotube and at least one chemical moiety to a solvent; debundling the nanotube; and non-covalently attaching a chemical moiety to the nanotube, wherein the non-covalently attached chemical moiety disperses the nanotube. A method of separating at least one semi-conducting carbon nanotube is also described.Type: GrantFiled: August 24, 2004Date of Patent: July 24, 2007Assignee: General Electric CompanyInventors: Patrick Roland Lucien Malenfant, Walter Vladimir Cicha, Pierre-Andre Bui, Davide Louis Simone
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Publication number: 20060045838Abstract: A nanostructure having at least one nanotube and at least one chemical moiety non-covalently attached to the at least one nanotube. At least one dendrimer is bonded to the chemical moiety. The chemical moiety may include soluble polymers, soluble oligomers, and combinations thereof. A method of dispersing at least one nanotube is also described. The method includes providing at least one nanotube and at least one chemical moiety to a solvent; debundling the nanotube; and non- covalently attaching a chemical moiety to the nanotube, wherein the non-covalently attached chemical moiety disperses the nanotube. A method of separating at least one semi-conducting carbon nanotube is also described.Type: ApplicationFiled: August 24, 2004Publication date: March 2, 2006Inventors: Patrick Lucien Malenfant, Walter Cicha, Pierre-Andre Bui, Davide Simone
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Patent number: 6780961Abstract: A new method of converting oligomeric chloroformates to high molecular weight polycarbonate is presented. By carefully controlling the relative concentrations and amounts of hydroxyl and chloroformate groups present in the oligomeric polycarbonate, the method of the invention provides for the efficient preparation of polycarbonate while minimizing phosgene usage. The product polycarbonates prepared by the method of the invention are fully capped with no additional phosgene required beyond that needed to prepare the oligomeric chloroformate starting material. The method of the present invention provides polycarbonates having non-detectable levels (<5 ppm) of aromatic hydroxyl endgroups, low polydispersity, and low levels of residual monomer and endcap, thereby obviating the need for monomer and endcap recycle.Type: GrantFiled: October 16, 2002Date of Patent: August 24, 2004Assignee: General Electric CompanyInventors: James Manio Silva, Pierre-Andre Bui, Thomas Joseph Fyvie, David Michel Dardaris
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Publication number: 20040077820Abstract: A new method of converting oligomeric chloroformates to high molecular weight polycarbonate is presented. By carefully controlling the relative concentrations and amounts of hydroxyl and chloroformate groups present in the oligomeric polycarbonate, the method of the invention provides for the efficient preparation of polycarbonate while minimizing phosgene usage. The product polycarbonates prepared by the method of the invention are fully capped with no additional phosgene required beyond that needed to prepare the oligomeric chloroformate starting material. The method of the present invention provides polycarbonates having non-detectable levels (<5 ppm) of aromatic hydroxyl endgroups, low polydispersity, and low levels of residual monomer and endcap, thereby obviating the need for monomer and endcap recycle.Type: ApplicationFiled: October 16, 2002Publication date: April 22, 2004Applicant: General Electric CompanyInventors: James Manio Silva, Pierre-Andre Bui, Thomas Joseph Fyvie, David Michel Dardaris
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Patent number: 6414178Abstract: This invention relates to a process and apparatus for the continuous preparation of mono and bis-chloroformate products of halogenated dihydroxy compounds by an interfacial process. The mono and bis-chloroformate products may optionally be converted to capped oligomers.Type: GrantFiled: July 25, 2000Date of Patent: July 2, 2002Assignee: General Electric CompanyInventors: James Manio Silva, David Michel Dardaris, Thomas Joseph Fyvie, Pierre-Andre Bui, Daniel Joseph Brunelle