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: 20200237173
    Abstract: A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a recovery tank, and a suction source, all of which are carried on the unitary body. The various components of the extraction cleaner can be arranged for a balanced weight in hand. The supply tank can be integrated with a fluid distributor in a removable, modular unit.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Colin J. Bloemendaal, Kin-leung TAM, Wei-min YI
  • Patent number: 10718350
    Abstract: A fan blade for a fan of a gas turbine engine is described which includes an airfoil having an inner core and an outer shell composed of different metals, and a galvanic separator therebetween. The galvanic separator including an adhesive layer covering said at least a portion of the inner core, and a non-conductive fabric covering the adhesive layer. A plurality of solid metal particles may be disposed on an outer surface of the non-conductive fabric layer, between the non-conductive fabric layer and the outer shell.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: July 21, 2020
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Kin-Leung Cheung
  • Patent number: 10711625
    Abstract: A gaspath traversing component of a gas turbine engine comprises a wall having an outer edge surface and a thickness relative to the gaspath, the wall having a plurality of layers of composite materials forming the thickness. A wear indication layer is embedded within the plurality of layers of composite material, the wear indication layer being visually contrasting with the composite material. The wear indication layer is positioned interiorly of at least one layer of said plurality of layers of composite material relative to the outer edge surface. A method for attending to a gas traversing component of a gas turbine engine is also provided.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: July 14, 2020
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Stephen Caulfeild, Kin-Leung Cheung, Mathieu Poulin, Bryan William Olver
  • Patent number: 10674625
    Abstract: A rack sideplane for interconnecting devices is disclosed. In an embodiment, the system includes a vertical connection interface sideplane and a mounting adapter. The sideplane is configured to be removably attached to the mounting adapter. The sideplane is configured to route one or more connections between devices mounted on a network rack via a protected channel in between the vertical connection interface sideplane and the mounting adapter.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 2, 2020
    Assignee: Facebook, Inc.
    Inventors: Che Kin Leung, Zhiping Yao
  • Patent number: 10631702
    Abstract: A surface cleaning apparatus includes a fluid delivery system and a fluid recovery system, as well as a hybrid brushroll including a dowel, a plurality of bristle extending from the dowel, and microfiber material provided on the dowel between the bristles. The hybrid brushroll is suitable for use on both hard and soft surfaces, and for wet or dry vacuum cleaning.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 28, 2020
    Assignee: BISSELL Inc.
    Inventors: Jincheng Xia, Jianjun Ge, Zhenjiang Yin, Xin Chen, Yongsheng Liang, Kin-leung Tam, Min Li, Feng Chun Li
  • Publication number: 20200127944
    Abstract: Data center switches are described. A rack of a data center can include several switches to implement a network topology. The switches can include ports on their fronts and sides such that cables can be coupled with these side ports to implement the network topology.
    Type: Application
    Filed: December 21, 2019
    Publication date: April 23, 2020
    Inventors: Zhiping Yao, Che Kin Leung
  • Patent number: 10624515
    Abstract: A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a recovery tank, and a suction source, all of which are carried on the unitary body. The various components of the extraction cleaner can be arranged for a balanced weight in hand. The supply tank can be integrated with a fluid distributor in a removable, modular unit.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: April 21, 2020
    Assignee: BISSELL Inc.
    Inventors: Colin J. Bloemendaal, Kin-leung Tam, Wei-min Yi
  • Patent number: 10622329
    Abstract: A cooling apparatus is provided for a bond head which has a collet to hold a semiconductor die and a heater to heat the semiconductor die held by the collet. The cooling apparatus includes a dielectric liquid supply for supplying a dielectric liquid and a gas supply for supplying a gas. A spray nozzle is located next to a surface of the heater, and is connected to both the dielectric liquid supply and the gas supply. In order to cool the heater, the spray nozzle sprays a liquid-gas mixture of the dielectric liquid and the gas towards the surface of the heater.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: April 14, 2020
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Yi Kei Law, Pak Kin Leung, Chuek Wah Tang, Gary Peter Widdowson
  • Publication number: 20200095938
    Abstract: An aerospace component, for example, used in a gas turbine engine, includes the following structurally-integrated layers: a metallic layer and a composite layer having reinforcing fibers embedded in a matrix material. The aerospace component can also include an insulating layer disposed between the metallic layer and the composite layer where the insulating layer has a thermal conductivity that is lower than a thermal conductivity of the composite layer.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 26, 2020
    Inventors: Kin-Leung CHEUNG, Bryan William OLVER, Stephen CAULFEILD
  • Publication number: 20200077544
    Abstract: A modular network switch is disclosed. In an embodiment, removable interface modules and a switch circuit board (SMB) are housed in a chassis. Each of the interface modules includes a circuit board that is positioned in parallel with other interface modules. The SMB is oriented in a plane perpendicular to orientation planes of the interface modules, and the circuit boards are connected to the switch circuit board. A switch chip is electrically connected to SMB, and configured to switch network traffic between network connections of the interface modules. The chassis may include airflow regions separated by a divider with respective air intake vents. A power supply is housed in one of the regions and the SMB/interface modules are housed in another region. Power supplies provide power to the interface modules via a bus bar and provide power to the switch circuit board via a connection separate from the bus bar.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Inventors: Che Kin Leung, Zhiping Yao, Xu Wang, Lingjun Wu, John Edward Fernandes
  • Patent number: 10568238
    Abstract: A modular network switch is disclosed. In an embodiment, removable interface modules and a switch circuit board (SMB) are housed in a chassis. Each of the interface modules includes a circuit board that is positioned in parallel with other interface modules. The SMB is oriented in a plane perpendicular to orientation planes of the interface modules, and the circuit boards are connected to the switch circuit board. A switch chip is electrically connected to SMB, and configured to switch network traffic between network connections of the interface modules. The chassis may include airflow regions separated by a divider with respective air intake vents. A power supply is housed in one of the regions and the SMB/interface modules are housed in another region. Power supplies provide power to the interface modules via a bus bar and provide power to the switch circuit board via a connection separate from the bus bar.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: February 18, 2020
    Assignee: Facebook, Inc.
    Inventors: Che Kin Leung, Zhiping Yao, Xu Wang, Lingjun Wu, John Edward Fernandes
  • Patent number: 10567309
    Abstract: Data center switches are described. A rack of a data center can include several switches to implement a network topology. The switches can include ports on their fronts and sides such that cables can be coupled with these side ports to implement the network topology.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: February 18, 2020
    Assignee: Facebook, Inc.
    Inventors: Zhiping Yao, Che Kin Leung
  • Publication number: 20200021539
    Abstract: Disclosed embodiments include a network switch having a first group of switch elements and a second group of switch elements. The second group of switch elements is cross-connected to the first group of switch elements to passively route network traffic through the network switch in accordance with a predefined configuration.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Che Kin Leung, Xu Wang, Zhiping Yao, Hans-Juergen Schmidtke, Lingjun Wu
  • Patent number: 10476816
    Abstract: Disclosed embodiments include a network switch having a first number of switch elements and a second number of switch elements cross-connected to the first switch elements to passively route network traffic through the network switch in accordance with a predefined configuration.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: November 12, 2019
    Assignee: Facebook, Inc.
    Inventors: Che Kin Leung, Xu Wang, Zhiping Yao, Hans-Jergen Schmidtke, Lingjun Wu
  • Patent number: 10432301
    Abstract: A device comprises an interface, a transmitter, a receiver, a processor, and a dynamically updating indicator on the device. The interface is configured to connect to an optical network transceiver. The transmitter is configured to send to the optical network transceiver a binary signal generated by the device. The receiver is configured to receive data provided by the optical network transceiver in response to sending the generated binary signal. The processor is configured to analyze the received data and the dynamically updating indicator is configured to indicate a test status of the optical network transceiver.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 1, 2019
    Assignee: Facebook, Inc.
    Inventors: WenSheng Zeng, Abhijit Chakravarty, Anthony Poblete, Che Kin Leung
  • Patent number: 10369593
    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: Grant
    Filed: September 23, 2014
    Date of Patent: August 6, 2019
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Barry Barnett, Kin-Leung Cheung, Thomas McDonough, Andreas Eleftheriou, Enzo Macchia
  • Patent number: 10356955
    Abstract: Modular network switches and other computer systems are described herein. A modular network switch can include a latching device for installing and removing computer modules (e.g., line cards) from an associated cabinet or enclosure. The network switch can also include interconnected computer modules (e.g., line cards, fabric cards, control modules, etc.) that include circuit boards oriented parallel to the flow of cooling air through the cabinet in the absence of a backplane or midplane oriented perpendicular to the air flow. The absence of such backplanes and/or midplanes provides a more direct air flow path through the cabinet, thereby enabling a more efficient flow of cooling air and lower operating temperatures. Additionally, the network switch can include an orthogonal arrangement of data planes, control planes, and/or power planes that can be efficiently interconnected to increase operational speed and further facilitate the flow of cooling air through the computer cabinet.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: July 16, 2019
    Assignee: Facebook, Inc.
    Inventors: Hans-Juergen Schmidtke, Zhiping Yao, Che Kin Leung, Xu Wang
  • Patent number: 10312214
    Abstract: An atomization mechanism for cooling a bond head comprises an atomization module and a conduit. In use, the atomization module receives gas and liquid from a gas supply and a liquid supply respectively to form an atomized spray and the conduit conveys the atomized spray from the atomization module to a spray inlet located at the bond head to receive the atomized spray into the bond head for cooling the bond head.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 4, 2019
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Yi Kei Law, Chuek Wah Tang, Pak Kin Leung, Gary Peter Widdowson, Wing Chiu Lai, Kin Fung Yu, Jiang Wen Deng
  • Patent number: 10305217
    Abstract: In one embodiment, a pluggable module has fins along a length of its shell, and a planar gap on its shell in front of the fins. The fins may rise higher than an industry-standard pluggable module. The planar gap provides for a pressure drop as air reaches the fins, and thereby improves air flow. The pluggable module plugs into a port of a cage. A key pattern or rotating door on the port is configured to allow the pluggable module's fins to pass through, while also placing a height limit on non-fin regions of the shell.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 28, 2019
    Assignee: Facebook, Inc.
    Inventors: John Edward Fernandes, Che Kin Leung
  • Publication number: 20190140738
    Abstract: A device comprises an interface, a transmitter, a receiver, a processor, and a dynamically updating indicator on the device. The interface is configured to connect to an optical network transceiver. The transmitter is configured to send to the optical network transceiver a binary signal generated by the device. The receiver is configured to receive data provided by the optical network transceiver in response to sending the generated binary signal. The processor is configured to analyze the received data and the dynamically updating indicator is configured to indicate a test status of the optical network transceiver.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 9, 2019
    Inventors: WenSheng Zeng, Abhijit Chakravarty, Anthony Poblete, Che Kin Leung