Patents by Inventor Tiencheng Wang

Tiencheng Wang 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: 7314076
    Abstract: The invention is a device for peeling one or more individual layers of a multilayer shim. In detail the device includes a platform having a surface with a recess. A mechanism is mounted in the recess for mounting the shim and a moving the shim upward such that a portion of the shim is above the surface. A blade assembly is rotatably mounted to the platform, which is rotatable in a plane parallel to the surface. The blade assembly includes a cutting blade mounted thereon, such that said blade is in slidable contact with the surface and movable over the recess. Thus shim can be raised by the mechanism and the portion of the shim requiring removal can be raised above the surface and the blade assembly thereafter can be rotated causing the cutting blade to shear off the portion of the shim above the surface.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: January 1, 2008
    Assignee: Northrup Grumman Corporation
    Inventors: Joseph P. Wardell, Tiencheng Wang
  • Publication number: 20060060055
    Abstract: The invention is a device for peeling one or more individual layers of a multilayer shim. In detail the device includes a platform having a surface with a recess. A mechanism is mounted in the recess for mounting the shim and a moving the shim upward such that a portion of the shim is above the surface. A blade assembly is rotatably mounted to the platform, which is rotatable in a plane parallel to the surface. The blade assembly includes a cutting blade mounted thereon, such that said blade is in slidable contact with the surface and movable over the recess. Thus shim can be raised by the mechanism and the portion of the shim requiring removal can be raised above the surface and the blade assembly thereafter can be rotated causing the cutting blade to shear off the portion of the shim above the surface.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Inventors: Joseph Wardell, Tiencheng Wang
  • Patent number: 6522979
    Abstract: A method for selecting a suitable workpiece having a material composition and a thickness for forming an article. The method calculates expected strain resulting from straight bends, stretch flanges, and shrink flanges utilizing customized strain correlations developed from strain test data of work piece samples. The calculated straight bend strain and stretch flange strain from multiple bends are then compared with the material yield strain to determine workpiece suitability. The shrink flange strain is compared with the material buckle stain to determine workpiece suitability. The method also calculates a spring back deformation for determining suitability of the workpiece and the press forming procedures.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: February 18, 2003
    Assignee: Northrop Grumman Corporation
    Inventors: Parviz Yavari, Tiencheng Wang