Patents by Inventor Kim Wei Cheah

Kim Wei Cheah 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: 10280781
    Abstract: An exemplary shroud milling method includes milling a convex side of a shroud, milling a concave side of the shroud, and holding a shroud within a common fixture when milling the convex side and when milling the concave side.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: May 7, 2019
    Assignee: Pratt & Whitney Services PTE LTD.
    Inventor: Kim Wei Cheah
  • Patent number: 9862057
    Abstract: A method of injecting laser-blocking material into a workpiece includes communicating molten laser-blocking material through the workpiece as the workpiece is subjected to at least a partial vacuum within an enclosed environment such that the partial vacuum expands any air bubbles in the laser-blocking material and transports the air bubbles out of the workpiece.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 9, 2018
    Assignee: United Technologies Corporation
    Inventor: Kim Wei Cheah
  • Patent number: 9566669
    Abstract: A method comprises identifying an engine-run tip position for an airfoil having a tip section and a root section. The engine-run tip position is displaced and rotated with respect to a nominal position, as defined with respect to the root section before engine running. A airfoil tip is formed on the airfoil, and a machining datum is defined adjacent the airfoil tip. The tip section is translated and rotated to locate the airfoil tip in the nominal position, without respect to a location of the root section. The tip section is restored to a nominal profile by machining the airfoil tip along a machining path defined with respect to the machining datum, wherein the machining path is independent of the displacement and rotation of the engine-run tip position and independent of the position of the root section.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 14, 2017
    Assignee: United Technologies Corporation
    Inventors: Kim Wei Cheah, Ting Cher Ng
  • Patent number: 9511469
    Abstract: An example component polishing method includes polishing a component protecting portions of the component during the polishing using a barrier spaced from the component. The barrier is configured to move together with the component during the polishing.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 6, 2016
    Assignee: Pratt & Whitney Services PTE LTD.
    Inventors: Chua Boon Beng, Thomas Tan, Kim Wei Cheah, Wai Tuck Chow
  • Publication number: 20150354388
    Abstract: An exemplary shroud milling method includes milling a convex side of a shroud, milling a concave side of the shroud, and holding a shroud within a common fixture when milling the convex side and when milling the concave side.
    Type: Application
    Filed: December 19, 2013
    Publication date: December 10, 2015
    Inventor: Kim Wei Cheah
  • Publication number: 20150239095
    Abstract: A blasting apparatus includes a first conduit for directing an abrasive stream to a workpiece, and a second conduit for providing a suction force at an outlet of the first conduit and for sucking away particles, the second conduit being disposed substantially surrounding and in parallel to the first conduit.
    Type: Application
    Filed: February 19, 2015
    Publication date: August 27, 2015
    Applicant: United Technologies Corporation
    Inventor: Kim Wei CHEAH
  • Patent number: 9057272
    Abstract: An example component polishing method includes polishing a component, and protecting at least a portion of a component during the polishing using a sacrificial mask. Some of the sacrificial mask is removed during the polishing.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 16, 2015
    Assignee: United Technologies Corporation
    Inventor: Kim Wei Cheah
  • Publication number: 20150158133
    Abstract: A method comprises identifying an engine-run tip position for an airfoil having a tip section and a root section. The engine-run tip position is displaced and rotated with respect to a nominal position, as defined with respect to the root section before engine running. A airfoil tip is formed on the airfoil, and a machining datum is defined adjacent the airfoil tip. The tip section is translated and rotated to locate the airfoil tip in the nominal position, without respect to a location of the root section. The tip section is restored to a nominal profile by machining the airfoil tip along a machining path defined with respect to the machining datum, wherein the machining path is independent of the displacement and rotation of the engine-run tip position and independent of the position of the root section.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 11, 2015
    Inventors: Kim Wei Cheah, Ting Cher NG
  • Publication number: 20140205461
    Abstract: A method of injecting laser-blocking material into a workpiece includes communicating molten laser-blocking material through the workpiece as the workpiece is subjected to at least a partial vacuum within an enclosed environment such that the partial vacuum expands any air bubbles in the laser-blocking material and transports the air bubbles out of the workpiece.
    Type: Application
    Filed: December 12, 2013
    Publication date: July 24, 2014
    Applicant: United Technologies Corporation
    Inventor: Kim Wei Cheah
  • Publication number: 20140003952
    Abstract: An example component polishing method includes polishing a component, and protecting at least a portion of a component during the polishing using a sacrificial mask. Some of the sacrificial mask is removed during the polishing.
    Type: Application
    Filed: October 22, 2012
    Publication date: January 2, 2014
    Applicant: PRATT & WHITNEY SERVICES PTE LTD.
    Inventor: Kim Wei Cheah
  • Publication number: 20130323071
    Abstract: An example component polishing method includes polishing a component protecting portions of the component during the polishing using a barrier spaced from the component. The barrier is configured to move together with the component during the polishing.
    Type: Application
    Filed: October 19, 2012
    Publication date: December 5, 2013
    Applicant: PRATT & WHITNEY SERVICES PTE LTD.
    Inventors: Chua Boon Beng, Thomas Tan, Kim Wei Cheah, Wai Tuck Chow