Patents by Inventor Thiam Hock Francis Tan

Thiam Hock Francis Tan 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).

  • Submergible pumping system with thermal sprayed polymeric wear surfaces
    Patent number: 6565257
    Abstract: In a pumping system, a PEEK composite material may be applied to wear areas on internal components. Typically, the internal component provides a metallic substrate which is prepared with a metallic bonding layer arc sprayed onto its surface, at least at the wear area. A powderized PEEK composite material is heated and propelled against the substrate and bonding layer by a high velocity oxy fuel technique. This uniformly coats the substrate providing a durable wear surface for prolonging component life.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: May 20, 2003
    Inventors: Steven C. Kennedy, Thiam Hock Francis Tan, Michael L. Taylor, Boon Hee Tan
  • System for reducing wear and improving longevity of a electric submergible pumping system
    Patent number: 6424066
    Abstract: An electric submergible pumping system having a submergible electric motor with a unique rotor bearing system to promote longevity of the motor. The system includes an electric motor having a housing and a stator mounted within the housing. A shaft is rotatably mounted within the housing for rotation within an interior, axial passage through the stator. A rotor bearing assembly is disposed intermediate the stator and the shaft. The assembly includes a bearing sleeve mounted adjacent the shaft, and a main body portion disposed in sliding engagement with the bearing sleeve. A spring mechanism, such as a wave spring, is engaged with the main body portion. A bracelet is located between the spring mechanism and an interior surface of the stator. The spring mechanism biases the bracelet against the stator to prevent the body portion from rotating during rotation of the shaft.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 23, 2002
    Assignee: Camco International, Inc.
    Inventors: Arthur I. Watson, Thiam Hock Francis Tan, Heng Lye Chang, John Lee Yoon Kion
  • Submergible pumping system with thermal sprayed polymeric wear surfaces
    Patent number: 6012900
    Abstract: In a pumping system, a PEEK composite material may be applied to wear areas on internal components. Typically, the internal component provides a metallic substrate which is prepared with a metallic bonding layer arc sprayed onto its surface, at least at the wear area. A powderized PEEK composite material is heated and propelled against the substrate and bonding layer by a high velocity oxy fuel technique. This uniformly coats the substrate providing a durable wear surface for prolonging component life.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: January 11, 2000
    Inventors: Steven C. Kennedy, Thiam Hock Francis Tan, Michael L. Taylor, Boon Hee Tan