Patents by Inventor Lijue Xue
Lijue Xue 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: 20190351486Abstract: A substrate has a body defined at least in part by a single piece of aluminum or aluminum alloy material having a cavity and a pinch-off or other feature area and further having a metal-matrix composite (MMC) layer formed integrally in the body at the pinch-off or other feature area. A process of producing a substrate involves machining a single piece of material to provide a body having a surface and a feature area, the feature area being of smaller dimension than required for the piece, integrally forming a metal-matrix composite layer in the feature area to build up the feature area to at least a dimension required for the piece. The metal-matrix composite comprises an aluminum-nickel alloy matrix (e.g. Al-12Si alloy alloyed with Ni) having WC particles embedded therein or a aluminum matrix (e.g. Al-12Si alloy) having TiC particles embedded therein and has greater wear resistance, greater strength, greater toughness or any combination thereof than the material.Type: ApplicationFiled: July 29, 2019Publication date: November 21, 2019Applicant: NATIONAL RESEARCH COUNCIL OF CANADAInventors: Lijue Xue, Shaodong Wang, Yangsheng Li
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Patent number: 10363605Abstract: A mold half, especially for blow molding of thermoplastic articles, has a mold body defined at least in part by a single piece of aluminum or aluminum alloy mold material having a cavity and a pinch-off or other feature area and further having a metal-matrix composite (MMC) layer formed integrally in the mold body at the pinch-off or other feature area. A mold is fabricated from two mated mold halves. A process of producing a mold half involves machining a single piece of mold material to provide a mold body having a cavity and a pinch-off or other feature area, the pinch-off or other feature area being of smaller dimension than required for the mold half, integrally forming a metal-matrix composite layer in the pinch-off or other feature area to build up the pinch-off or other feature area to at least a dimension required for the mold half. The metal-matrix composite comprises an aluminum-nickel alloy matrix (e.g. AI-12Si alloy alloyed with Ni) having WC particles embedded therein or a aluminum matrix (e.g.Type: GrantFiled: July 21, 2011Date of Patent: July 30, 2019Assignees: National Research Council of Canada, Garrtech Inc.Inventors: Lijue Xue, Shaodong Wang, Yangsheng Li, Tony Paget
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Publication number: 20160024633Abstract: A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and/or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.Type: ApplicationFiled: October 8, 2015Publication date: January 28, 2016Applicant: NATIONAL RESEARCH COUNCIL OF CANADAInventors: Lijue XUE, Jiaren JIANG, Shaodong WANG
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Patent number: 9168546Abstract: A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and/or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.Type: GrantFiled: December 9, 2009Date of Patent: October 27, 2015Assignee: National Research Council of CanadaInventors: Lijue Xue, Shaodong Wang, Jiaren Jiang
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Publication number: 20130122193Abstract: A mold half, especially for blow molding of thermoplastic articles, has a mold body defined at least in part by a single piece of aluminum or aluminum alloy mold material having a cavity and a pinch-off or other feature area and further having a metal-matrix composite (MMC) layer formed integrally in the mold body at the pinch-off or other feature area. A mold is fabricated from two mated mold halves. A process of producing a mold half involves machining a single piece of mold material to provide a mold body having a cavity and a pinch-off or other feature area, the pinch-off or other feature area being of smaller dimension than required for the mold half, integrally forming a metal-matrix composite layer in the pinch-off or other feature area to build up the pinch-off or other feature area to at least a dimension required for the mold half. The metal-matrix composite comprises an aluminum-nickel alloy matrix (e.g. AI-12Si alloy alloyed with Ni) having WC particles embedded therein or a aluminum matrix (e.g.Type: ApplicationFiled: July 21, 2011Publication date: May 16, 2013Applicants: GARRTECH INC., NATIONAL RESEARCH COUNCIL OF CANADAInventors: Lijue Xue, Shaodong Wang, Yangsheng Li, Tony Paget
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Publication number: 20110159138Abstract: A blow mold is disclosed. The mold includes a pair of mold halves having an operative configuration wherein the mold halves together define a cavity for a container, the container having a main body and a characteristic selected from the group of characteristics consisting of: a push-up base; an integral finish; and an embossed or a debossed feature. Each of the pair of mold halves has a first portion and a second portion formed integrally with the first portion. When the pair of mold halves is in the operative configuration, the first portions collectively define the main body and the second portions collectively define the characteristic. At least one of the pair of mold halves has a relatively soft substrate portion and a relatively hard surface layer formed integrally with the substrate portion.Type: ApplicationFiled: September 21, 2010Publication date: June 30, 2011Applicant: GARRTECH INC.Inventors: Tony Paget, Lijue Xue, Shaodong Wang, Yangsheng Li
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Publication number: 20100151124Abstract: A system for cold gas dynamic spraying of particulate material has a de Laval nozzle and two or more radial particle inlets located between the throat and the outlet of the nozzle, the two or more particle inlets arranged symmetrically around a linear flow path of the nozzle. Blocking of the inlets is reduced by controlling pressure of particle carrier gas to provide a stable particulate material injection pressure before and during introduction of working gas into the nozzle, and/or by clearing the particle inlets of residual particles after a spraying process. Such a system and associated method combines benefits of both downstream and upstream cold gas spray systems. Further, a nozzle for spraying particulate material having a cross-sectional shape that is narrower in a middle section compared to edge sections provides coatings with superior cross-sectional profiles.Type: ApplicationFiled: December 9, 2009Publication date: June 17, 2010Inventors: Lijue Xue, Shaodong Wang, Jiaren Jiang
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Patent number: 7333258Abstract: An electrochromic material having improved durability and more pleasing color characteristics is composed of a single-phase compound of formula W1?xTaxO3?x/2, x having a value in a range of from about 0.15 to about 0.5. Thin films of the electrochromic material can be manufactured by pulse laser deposition (PLD). Thin films of the electrochromic material are useful in the fabrication of electrochromic devices, such as “smart” windows, mirrors, information displays and variable emittance surfaces.Type: GrantFiled: October 31, 2005Date of Patent: February 19, 2008Assignee: National Research Council of CanadaInventors: Dongfang Yang, Lijue Xue
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Patent number: 7316561Abstract: A hot runner molding manifold has a first half having flow grooves, a cover piece having flow grooves complementary to the flow grooves of the first half, and a second half securable to the first half and having a cavity for receiving the cover piece. The flow grooves of the first half and the cover piece form flow channels for distributing molten material from an inlet port to outlet ports. The cover piece is engaged with the first half, for example by welding, to reduce leakage of molten material out of the flow channels. Heater grooves in the first half, second half or both the first and second halves receive one or more heating elements for heating the flow channels.Type: GrantFiled: September 29, 2005Date of Patent: January 8, 2008Assignee: National Research Council of CanadaInventors: Lijue Xue, Glen Robert Campbell, Manuel J. Gomes
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Publication number: 20070097480Abstract: An electrochromic material having improved durability and more pleasing color characteristics is composed of a single-phase compound of formula W1-xTaxO3-x/2, x having a value in a range of from about 0.15 to about 0.5. Thin films of the electrochromic material can be manufactured by pulse laser deposition (PLD). Thin films of the electrochromic material are useful in the fabrication of electrochromic devices, such as “smart” windows, mirrors, information displays and variable emittance surfaces.Type: ApplicationFiled: October 31, 2005Publication date: May 3, 2007Inventors: Dongfang Yang, Lijue Xue
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Publication number: 20070071846Abstract: A hot runner molding manifold has a first half having flow grooves, a cover piece having flow grooves complementary to the flow grooves of the first half, and a second half securable to the first half and having a cavity for receiving the cover piece. The flow grooves of the first half and the cover piece form flow channels for distributing molten material from an inlet port to outlet ports. The cover piece is engaged with the first half, for example by welding, to reduce leakage of molten material out of the flow channels. Heater grooves in the first half, second half or both the first and second halves receive one or more heating elements for heating the flow channels.Type: ApplicationFiled: September 29, 2005Publication date: March 29, 2007Inventors: Lijue Xue, Glen Campbell, Manuel Gomes
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Patent number: 6504127Abstract: A laser consolidation methodology and apparatus for manufacturing precise three dimensional structures are disclosed. In the disclosed process, a plurality of beams of laser energy are arranged to impinge a circular area on a substrate, at an angle in the range of 25° to 30° to the normal to the substrate, melting a hemispherical region of the substrate. Powdered material is supplied to the melted region of the substrate in a direction substantially normal to the substrate. The rate of material feed is controlled so that the added material melts and forms together with underlying material a molten zone maintained spherical under the influence of surface tension. The substrate is moved relative to laser beams and material feed at a controlled rate so as to create a ridge of desired shape on the substrate, the top surface of which has a semicircular cross-section.Type: GrantFiled: October 31, 2000Date of Patent: January 7, 2003Assignee: National Research Council of CanadaInventors: Gavin McGregor, Mahmud-Ul Islam, Lijue Xue, Glen Campbell
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Patent number: 6269540Abstract: A process of the kind used for producing or repairing a turbine or compressor or fan blade by laser consolidation wherein a laser beam is moved relative to a metal surface and a stream of metal is supplied to the surface via a supply tube, so that said laser beam melts a thin layer of the metal substrate and also melts the metal being delivered to the substrate and thus forms a band of fused metal on said surface, the process being repeated until a desired blade is built up or repaired. The invention is characterized in that the laser beam is orientated at an acute angle to the surface. The supply tube may deliver the metal substantially along a path normal to the surface, with the laser beam being one of a plurality of laser beams each orientated at an acute angle to the surface and spaced around the supply means.Type: GrantFiled: September 30, 1999Date of Patent: August 7, 2001Assignee: National Research Council of CanadaInventors: Mahmud U. Islam, Lijue Xue, Gavin McGregor