Patents by Inventor Chai Wah Koh

Chai Wah Koh 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).

  • System and method for mooring of offshore structures
    Patent number: 8047151
    Abstract: A system and method for configuring and supporting mooring lines deployed on offshore structures, e.g. Spar-type platform, are provided with recessed portions that are located around the splash/ice zones for “cutting” through waves. An offshore structure may be provided with a chain tensioning mechanism that applies a desired tension to a hull chain and mooring line during mooring. Upon mooring the offshore structure, a chain lock mechanism maintains the tension in the hull chain and mooring line, while the chain tensioning mechanism releases a portion of the hull chain which is to be stored in a chain housing which is fully submerged underwater. This way, the recessed portions of the offshore structure around the splash/ice zones would be substantially free of the hull chains. Additionally, a disconnect mechanism may be provided to allow quick and safe disconnection of the offshore structure from the mooring position.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 1, 2011
    Assignees: Keppel Offshore & Marine Technology Centre Pte Ltd, Offshore Technology Development Pte Ltd
    Inventors: Kok Seng Foo, Asbjorn Mortensen, Rune Henriksen, Chai Wah Koh, Toh Tung Wong
  • System and Method for Mooring of Offshore Structures
    Publication number: 20100024706
    Abstract: A system and method for configuring and supporting mooring lines deployed on offshore structures, e.g. Spar-type platform, are provided with recessed portions that are located around the splash/ice zones for “cutting” through waves. An offshore structure may be provided with a chain tensioning mechanism that applies a desired tension to a hull chain and mooring line during mooring. Upon mooring the offshore structure, a chain lock mechanism maintains the tension in the hull chain and mooring line, while the chain tensioning mechanism releases a portion of the hull chain which is to be stored in a chain housing which is fully submerged underwater. This way, the recessed portions of the offshore structure around the splash/ice zones would be substantially free of the hull chains. Additionally, a disconnect mechanism may be provided to allow quick and safe disconnection of the offshore structure from the mooring position.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Applicants: Keppel Offshore & Marine Technology Centre Pte. Ltd., Offshore Technology Development Pte. Ltd.
    Inventors: Kok Seng FOO, Asbjorn MORTENSEN, Rune HENRIKSEN, Chai Wah KOH, Toh Tung WONG