Patents by Inventor Choon Keat Lai

Choon Keat Lai 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).

  • Patent number: 10246964
    Abstract: A system includes a housing of a wellhead, a hanger configured to be positioned within the housing of the wellhead, and a hanger retention system. The hanger retention system includes a key-slot interface having at least one retention segment configured to move between a collapsed position in which the at least one retention segment does not block movement of the hanger relative to the housing of the wellhead and an engaged position in which the at least one retention segment engages at least one corresponding slot to block movement of the hanger relative to the housing of the wellhead. The at least one retention segment includes a wavy cross-sectional shape at least while the at least one retention segment is in the engaged position that enables the at least one retention segment to move between the collapsed position and the engaged position.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 2, 2019
    Assignee: Cameron International Corporation
    Inventors: Isaac Weng Chun Kam, Shuang Yong Cheah, Haw Keat Lim, Choon Seng Koa, Choon Keat Lai, Yen Hau Kok
  • Patent number: 10233714
    Abstract: A wellhead hanger assembly is provided. In one embodiment, a system includes a wellhead hanger, a running tool coupled to the wellhead hanger, and a torque sleeve positioned to transmit torque from the running tool to the wellhead hanger. The running tool can be in castellated engagement with the torque sleeve via a first set of castellations and mating slots, and the wellhead hanger can be in castellated engagement with the torque sleeve via a second set of castellations and mating slots. Additional systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 19, 2019
    Assignee: Cameron International Corporation
    Inventors: Shuang Yong Cheah, Choon Keat Lai, Haw Keat Lim, Brandon B. Shirley
  • Publication number: 20170167218
    Abstract: A wellhead hanger assembly is provided. In one embodiment, a system includes a wellhead hanger, a running tool coupled to the wellhead hanger, and a torque sleeve positioned to transmit torque from the running tool to the wellhead hanger. The running tool can be in castellated engagement with the torque sleeve via a first set of castellations and mating slots, and the wellhead hanger can be in castellated engagement with the torque sleeve via a second set of castellations and mating slots. Additional systems, devices, and methods are also disclosed.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 15, 2017
    Inventors: Shuang Yong Cheah, Choon Keat Lai, Haw Keat Lim, Brandon B. Shirley
  • Publication number: 20170167217
    Abstract: A system includes a housing of a wellhead, a hanger configured to be positioned within the housing of the wellhead, and a hanger retention system. The hanger retention system includes a key-slot interface having at least one retention segment configured to move between a collapsed position in which the at least one retention segment does not block movement of the hanger relative to the housing of the wellhead and an engaged position in which the at least one retention segment engages at least one corresponding slot to block movement of the hanger relative to the housing of the wellhead. The at least one retention segment includes a wavy cross-sectional shape at least while the at least one retention segment is in the engaged position that enables the at least one retention segment to move between the collapsed position and the engaged position.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 15, 2017
    Inventors: Isaac Weng Chun Kam, Shuang Yong Cheah, Haw Keat Lim, Choon Seng Koa, Choon Keat Lai, Yen Hau Kok