Patents by Inventor Yean Khow Chow

Yean Khow Chow 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: 8011857
    Abstract: The present invention describes an extraction system (100,100a) for expediting removal of a footing (105) that is embedded in a seabed or marine floor. The extraction system provides a supply of pressurized fluid (140) to a chamber from where the pressurized fluid exudes through porous members (122,122a, etc) located on the base (114) of the footing (105). When an uplifting force is applied to the footing (105) for its removal, the pressurized fluid (140) exudes out through the porous member (122,122a, etc.) to compensate or reduce suction induced beneath the footing, without fluidizing or channeling of the seabed soil, thereby expediting removal of the footing (105).
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: September 6, 2011
    Assignees: Offshore Technology Development Pte Ltd, National University of Singapore
    Inventors: Kok Seng Foo, Chin Kau Quah, Okky Ahmad Purwana, Yean Khow Chow, Chun Fai Leung
  • Publication number: 20090269144
    Abstract: The present invention describes an extraction system (100,100a) for expediting removal of a footing (105) that is embedded in a seabed or marine floor. The extraction system provides a supply of pressurized fluid (140) to a chamber from where the pressurized fluid exudes through porous members (122,122a, etc) located on the base (114) of the footing (105). When an uplifting force is applied to the footing (105) for its removal, the pressurized fluid (140) exudes out through the porous member (122,122a, etc.) to compensate or reduce suction induced beneath the footing, without fluidizing or channeling of the seabed soil, thereby expediting removal of the footing (105).
    Type: Application
    Filed: May 26, 2009
    Publication date: October 29, 2009
    Applicants: Offshore Technology Development Pte Ltd, National University of Singapore
    Inventors: Kok Seng FOO, Chin Kau QUAH, Okky Ahmad PURWANA, Yean Khow CHOW, Chun Fai LEUNG
  • Publication number: 20070059106
    Abstract: The present invention provides a foundation that facilitates the extraction process by minimizing the soil resistance. When the foundation is lowered onto a seabed, it penetrates the seabed and experiences soil resistance therefrom. In particular, the suction generated at the base of the foundation contributes significantly to the soil resistance. The foundation is configured to uniformly distribute pressurized fluid to the base external via a plurality of outlets. The outlets are terminated with an interface layer to allow the transfer of pressurized fluid to the base external and prevent the ingress or seabed sediments into the body. The pressurized fluid released to the base external increases the pore pressure at the base external, thus minimizing the suction at the base.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 15, 2007
    Applicants: OFFSHORE TECHNOLOGY DEVELOPMENT PTE LTD, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Yean Khow Chow, Chun Leung, Okky Purwana, Kok Foo, Chin Quah