Patents by Inventor Leung Por Chan

Leung Por Chan 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).

  • Integrated connector assembly for a rotary apparatus
    Patent number: 8794563
    Abstract: A rotary apparatus comprises a rotary bobbin, a processing component fixedly attached to the bobbin and connectors fixedly connected to the processing component. At least one helical groove is located along the bobbin wherein the connectors are housed. A motor coupled to the processing component is operative to rotate the processing component together with the bobbin in two opposite rotary directions.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: August 5, 2014
    Assignee: ASM Assembly Automation Ltd
    Inventors: Kam Kwong Lai, Kin Man Lee, Wai Ho Luoie, Leung Por Chan, Wang Lung Tse
  • Apparatus for transferring electronic components in stages
    Patent number: 8251422
    Abstract: A transfer assembly for transferring first and second groups of electronic components simultaneously comprises a holding plate containing first and second sets of suction holes. The respective first and second sets of suction holes are operative to hold the first and second groups of electronic components respectively against the holding plate during transfer of the electronic components. A first vacuum chamber located next to the holding plate is connected only to the first set of suction holes. A vacuum compartment located within the first vacuum chamber encloses a second vacuum chamber. The vacuum compartment includes a sealing sheet in contact with the holding plate which has vacuum holes connecting the second vacuum chamber to the second set of suction holes. First and second vacuum sources are provided for applying vacuum suction forces separately in the first and second vacuum chambers.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: August 28, 2012
    Assignee: ASM Assembly Automation Ltd
    Inventors: Chi Wah Cheng, Wang Lung Tse, Leung Por Chan
  • INTEGRATED CONNECTOR ASSEMBLY FOR A ROTARY APPARATUS
    Publication number: 20110280702
    Abstract: A rotary apparatus comprises a rotary bobbin, a processing component fixedly attached to the bobbin and connectors fixedly connected to the processing component. At least one helical groove is located along the bobbin wherein the connectors are housed. A motor coupled to the processing component is operative to rotate the processing component together with the bobbin in two opposite rotary directions.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 17, 2011
    Inventors: Kam Kwong LAI, Kin Man LEE, Wai Ho LUOIE, Leung Por CHAN, Wang Lung TSE
  • APPARATUS FOR TRANSFERRING ELECTRONIC COMPONENTS IN STAGES
    Publication number: 20110236161
    Abstract: A transfer assembly for transferring first and second groups of electronic components simultaneously comprises a holding plate containing first and second sets of suction holes. The respective first and second sets of suction holes are operative to hold the first and second groups of electronic components respectively against the holding plate during transfer of the electronic components. A first vacuum chamber located next to the holding plate is connected only to the first set of suction holes. A vacuum compartment located within the first vacuum chamber encloses a second vacuum chamber. The vacuum compartment includes a sealing sheet in contact with the holding plate which has vacuum holes connecting the second vacuum chamber to the second set of suction holes. First and second vacuum sources are provided for applying vacuum suction forces separately in the first and second vacuum chambers.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 29, 2011
    Inventors: Chi Wah CHENG, Wang Lung TSE, Leung Por CHAN