Patents by Inventor Kin Leung

Kin Leung 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).

  • Publication number: 20150017324
    Abstract: A method of applying a nanocrystalline metal coating to a titanium or titanium alloy blade of a gas turbine engine is described. The method includes selecting an intermediate bond coat from the group consisting of nickel, nickel alloy, P, B, Tl and combinations thereof, and applying the intermediate bond coat to at least a portion of the blade. A nanocrystalline metal coating having an average grain size of between 10 nm and 500 nm is then applied to the portion of the blade overtop of the intermediate bond coat.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 15, 2015
    Inventors: Barry BARNETT, Kin-Leung CHEUNG, Thomas MCDONOUGH, Andreas ELEFTHERIOU, Enzo MACCHIA
  • Publication number: 20140341961
    Abstract: The present invention provides a method for preparing a material in the form of liquid for forming an antimicrobial surface coating with multi-level antimicrobial properties, comprising: encapsulating one or more volatile or gaseous biocides in two or more amphiphilic block copolymers to obtain a w/o/w double emulsion, and mixing the w/o/w double emulsion with one or more nonvolatile biocides, each of which is selected from the group consisting of a metal containing biocide, triclosan, a carboxylic acid, a sugar acid and a combination thereof.
    Type: Application
    Filed: April 15, 2014
    Publication date: November 20, 2014
    Applicant: The Hong Kong University of Science and Technology Technology Transfer Center
    Inventors: King Lun Yeung, Wai Kin Leung
  • Patent number: 8871297
    Abstract: A method of applying a nanocrystalline coating to a gas turbine engine component is described. The method comprises the steps of applying an intermediate bond coat to at least a portion of the component, and then applying the nanocrystalline coating to at least the portion of the component overtop of the intermediate bond coat. The component may include, for example, a blade of which a dovetail portion of the blade root is protected by applying the intermediate bond coat and the nanocrystalline coating thereto.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 28, 2014
    Inventors: Barry Barnett, Kin-Leung Cheung, Thomas McDonough, Andreas Eleftheriou, Enzo Macchia
  • Publication number: 20140229616
    Abstract: Multiple packets are received that were transmitted by multiple mobile electronic device sensors located in a predefined area. The packets each include data detected by the sensors of multiple mobile electronic devices. At least a portion of the collected data is stored including multiple unique device identifiers that belong to multiple mobile electronic devices. Responsive to determining that at least two of the unique device identifiers are sequential, a set of values based on the at least two unique devices identifiers are associated as belonging to a same one of the mobile electronic devices.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Inventors: Kenneth Man-Kin Leung, William Tolbert Smith, Steve Lawrence Wilhelm
  • Patent number: 8741325
    Abstract: The present invention provides a material for forming an antimicrobial surface coating with multi-level antimicrobial properties, which comprises one or more volatile or gaseous biocides, one or more nonvolatile biocides, and one or more polymers, wherein the volatile or gaseous biocides are encapsulated in the polymers to provide a sustained release of the volatile or gaseous biocides. The present invention further provides a method for preparing the material.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: June 3, 2014
    Assignee: The Hong Kong University of Science and Technology
    Inventors: King Lun Yeung, Wai Kin Leung
  • Patent number: 8699370
    Abstract: Multiple packets are received that were transmitted by multiple mobile electronic device sensors located in a predefined area. The packets each include data detected by the sensors of multiple mobile electronic devices. At least a portion of the collected data is stored including multiple unique device identifiers that belong to multiple mobile electronic devices. Responsive to determining that at least two of the unique device identifiers are sequential, a set of values based on the at least two unique devices identifiers are associated as belonging to a same one of the mobile electronic devices.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: April 15, 2014
    Assignee: Euclid, Inc.
    Inventors: Kenneth Man-Kin Leung, William Tolbert Smith, Steve Lawrence Wilheim
  • Publication number: 20140027068
    Abstract: A bond head for thermal compression die bonding comprises a collet operative to support a die on a first side of the collet during die bonding and a bond head heater located on a second side of the collet opposite to the first side for heating the collet and the die. A die vacuum suction hole on the bond head heater applies a vacuum suction force to hold the collet, and a collet vacuum suction hole on the bond head heater applies a vacuum suction force to hold the die. At least one vacuum distribution channel that is formed on the second side of the collet is in fluid communication with the collet vacuum suction hole and distributes the vacuum suction force across a surface of the second side of the collet for securing the collet.
    Type: Application
    Filed: July 30, 2012
    Publication date: January 30, 2014
    Inventors: Kin Yik HUNG, Pak Kin LEUNG, Cheuk Wah TANG, Chi Ping HUNG, Gary Peter WIDDOWSON
  • Patent number: 8545167
    Abstract: A gas turbine engine includes a fan including a plurality of circumferentially spaced rotatable blades, and a fan casing for containing fragments of fan blades in the event of blade release, the fan casing having a shell surrounding the blades and circumscribing a containment zone of the fan. The shell is made of a fiber reinforced polymer composite material which includes nanoparticles.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 1, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kin-Leung Cheung
  • Publication number: 20130251500
    Abstract: An assembly of a rotor and case for a gas turbine engine comprises a rotor having a plurality of circumferential blades each with a blade tip. A case comprises a structural layer forming an annular body receiving therein the rotor, with a tip clearance being defined between the blade tips and the annular body, and a heating layer connected to the at least one structural layer. The heating layer has a resistivity to heat the structural layer when an electric current passes through the heating layer. An electric power source supplies current to the heating layer, the heating layer configured to in use change the diameter of the annular body to adjust the tip clearance. A method for adjusting a tip clearance between blade tips of a rotor and inner surface of a case in a gas turbine engine is also provided.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Inventors: Kin-Leung CHEUNG, Xiaoliu LIU
  • Patent number: 8538576
    Abstract: A method of configuring a dicing device 101, which dices along a cutting line of a workpiece 111 according to a dicing step, is disclosed. Numerical input of a dicing order of the dicing device 101 to dice a workpiece 111 is time-consuming and prone to errors. The disclosed method comprises the step of depicting a graphical user interface 202, which includes a layout 203 of the workpiece 111 that further includes a plurality of cut lines relating to respective cutting lines along the workpiece 111. The disclosed method further comprises the step of graphically contacting a cut line from the layout 203 through a user-interface device 201, to allow selection of the cut line before the selected cut line is assigned to the dicing step of the dicing device 101. By providing the plurality of cut lines in the layout 203 that are graphically contactable through the user-interface device 201, the method advantageously allows an easier process of configuring the dicing step of the dicing device 101.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: September 17, 2013
    Assignee: ASM Technology Singapore Pte. Ltd.
    Inventors: Chi Wah Cheng, Lap Kei Chow, Man Kin Leung, Hoi Shuen Tang
  • Publication number: 20130224008
    Abstract: A method of manufacturing a vane component of a gas turbine engine is described, and includes forming a core of the vane component using a rapid manufacturing process, and applying a coating of nanocrystalline metal onto the core, the nanocrystalline metal fully encapsulating the core and defining an outer structural surface of the vane component.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Inventors: Kin-Leung CHEUNG, Enzo Macchia, Barry Bamett
  • Publication number: 20120259444
    Abstract: A method of configuring a dicing device 101, which dices along a cutting line of a workpiece 111 according to a dicing step, is disclosed. Numerical input of a dicing order of the dicing device 101 to dice a workpiece 111 is time-consuming and prone to errors. The disclosed method comprises the step of depicting a graphical user interface 202, which includes a layout 203 of the workpiece 111 that further includes a plurality of cut lines relating to respective cutting lines along the workpiece 111. The disclosed method further comprises the step of graphically contacting a cut line from the layout 203 through a user-interface device 201, to allow selection of the cut line before the selected cut line is assigned to the dicing step of the dicing device 101. By providing the plurality of cut lines in the layout 203 that are graphically contactable through the user-interface device 201, the method advantageously allows an easier process of configuring the dicing step of the dicing device 101.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 11, 2012
    Applicant: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Chi Wah CHENG, Lap Kei CHOW, Man Kin LEUNG, Hoi Shuen TANG
  • Patent number: 8260997
    Abstract: In one embodiment, a method comprises initiating shutdown of network traffic of a line card while the line card is coupled to a connector chassis and exchanging network traffic, the initiating shutdown in response to actuation of a magnetic switch associated with the line card, the magnetic switch being actuated in response to movement of actuating structure that unlocks the line card for removal from the connector chassis; and completing the shutdown of network traffic in the line card prior to permitting complete removal of the line card from the connector chassis.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: September 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Frans Kusnadi, Jimmy Che-Kin Leung, Mandy Hin Lam
  • Publication number: 20120163206
    Abstract: Multiple packets are received that were transmitted by multiple mobile electronic device sensors located in a predefined area. The packets each include data detected by the sensors of multiple mobile electronic devices. At least a portion of the collected data is stored including multiple unique device identifiers that belong to multiple mobile electronic devices. Responsive to determining that at least two of the unique device identifiers are sequential, a set of values based on the at least two unique devices identifiers are associated as belonging to a same one of the mobile electronic devices.
    Type: Application
    Filed: August 23, 2011
    Publication date: June 28, 2012
    Inventors: Kenneth Man-Kin Leung, William Tolbert Smith, Steve Lawrence Wilhelm
  • Patent number: 8182213
    Abstract: A vane assembly for a gas turbine engine where each vane is connected to at least one adjacent portion of at least one of the inner and the outer shrouds through a melt-weld connection. The melt-weld connection includes non-metallic heat-meltable material with a metal wire mesh layer trapped therein, the metal wire mesh being heatable to melt the heat-meltable material for formation and breakdown of the melt-weld connection.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: May 22, 2012
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kin-Leung Cheung
  • Publication number: 20120082783
    Abstract: A method of applying a nanocrystalline coating to a gas turbine engine component is described. The method comprises the steps of applying an intermediate bond coat to at least a portion of the component, and then applying the nanocrystalline coating to at least the portion of the component overtop of the intermediate bond coat. The component may include, for example, a blade of which a dovetail portion of the blade root is protected by applying the intermediate bond coat and the nanocrystalline coating thereto.
    Type: Application
    Filed: July 22, 2011
    Publication date: April 5, 2012
    Inventors: Barry Barnett, Kin-Leung Cheung, Thomas McDonough, Andreas Eleftheriou, Enzo Macchia
  • Publication number: 20110237155
    Abstract: The present invention provides a toy house with cube joint which comprises a roof and a house body, of which the house body is formed by a number of roots, wherein there are some holes for the purpose of forming the roof and house body, of which the holes can connect with the holes of other roots perpendicularly by putting a wood screw into the corresponding holes on two roots. There are connecting holes spreading systematically on each root. A root can be connected with adjacent root or additional facilities by putting a cross nut into the connecting holes with the corresponding holes of adjacent root or additional facilities, and then insert two special fasteners to the corresponding perpendicular holes, the cross nut and the special fasteners (specially designed connectors) will integrate together and the roots and facilities can be connected accordingly. The present invention provides a toy house with cube joint as an enhancement.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Applicant: World Sun Development Limited
    Inventor: Kin LEUNG
  • Publication number: 20110052382
    Abstract: A gas turbine engine includes a fan including a plurality of circumferentially spaced rotatable blades, and a fan casing for containing fragments of fan blades in the event of blade release, the fan casing having a shell surrounding the blades and circumscribing a containment zone of the fan. The shell is made of a fiber reinforced polymer composite material which includes nanoparticles.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Inventor: Kin-Leung Cheung
  • Publication number: 20100272565
    Abstract: A vane assembly for a gas turbine engine where each vane is connected to at least one adjacent portion of at least one of the inner and the outer shrouds through a melt-weld connection. The melt-weld connection includes non-metallic heat-meltable material with a metal wire mesh layer trapped therein, the metal wire mesh being heatable to melt the heat-meltable material for formation and breakdown of the melt-weld connection.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 28, 2010
    Inventor: Kin-Leung Cheung
  • Publication number: 20100158851
    Abstract: The present invention provides a material for forming an antimicrobial surface coating with multi-level antimicrobial properties, which comprises one or more volatile or gaseous biocides, one or more nonvolatile biocides, and one or more polymers, wherein the volatile or gaseous biocides are encapsulated in the polymers to provide a sustained release of the volatile or gaseous biocides. The present invention further provides a method for preparing the material.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 24, 2010
    Applicant: The Hong Kong University of Science and Technology Technology Transfer Center
    Inventors: King Lun Yeung, Wai Kin Leung