Patents by Inventor Lum Kok Wah

Lum Kok Wah 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).

  • Apparatus for correcting airfoil twist
    Patent number: 6792655
    Abstract: A system for correcting twist in airfoil components includes a first fixture assembly for holding a first end of an airfoil component and a second fixture assembly for holding a second end of the airfoil component. A rotary drive unit is provided for rotating the first fixture assembly. A gage is included for measuring twist angle in the airfoil component, and a controller controls the rotary drive unit in response to input from the gage to twist the airfoil component. In operation, the airfoil component's twist angle measured by the gage is fed to the controller. The controller computes how much the airfoil component needs to be twisted to achieve a desired twist angle, and the first fixture assembly is then rotated sufficiently to twist the airfoil component to the desired twist angle.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: September 21, 2004
    Assignee: General Electric Company
    Inventor: Lum Kok Wah
  • Method and apparatus for correcting airfoil twist
    Publication number: 20030088958
    Abstract: A system for correcting twist in airfoil components includes a first fixture assembly for holding a first end of an airfoil component and a second fixture assembly for holding a second end of the airfoil component. A rotary drive unit is provided for rotating the first fixture assembly. A gage is included for measuring twist angle in the airfoil component, and a controller controls the rotary drive unit in response to input from the gage to twist the airfoil component. In operation, the airfoil component's twist angle measured by the gage is fed to the controller. The controller computes how much the airfoil component needs to be twisted to achieve a desired twist angle, and the first fixture assembly is then rotated sufficiently to twist the airfoil component to the desired twist angle.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 15, 2003
    Inventor: Lum Kok Wah