Patents by Inventor David N. Wong

David N. Wong 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).

  • Dual brake rotor finishing system
    Patent number: 6601485
    Abstract: A brake rotor refinishing system provides simultaneously refinishing of two workpieces that are clamped at opposite ends of a duplex chuck, when the chuck is installed on a machine spindel. The duplex chuck has respectives sets of jaws that are independently driven by separate pinion elements. In the case of disk brake rotors, opposite sides of both workpieces are finished simultaneously. The system also includes a refinishing machine that incorporates the spindle and a machining mechanism having cutting elements for simultaneously refinishing opposite sides of a pair of disk rotors.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: August 5, 2003
    Inventors: Paul R. Baldwin, David N. Wong, John Guariglio
  • Dual brake rotor finishing system
    Publication number: 20020174752
    Abstract: A brake rotor refinishing system provides simultaneously refinishing of two workpieces that are clamped at opposite ends of a duplex chuck, when the chuck is installed on a machine spindel. The duplex chuck has respectives sets of jaws that are independently driven by separate pinion elements. In the case of disk brake rotors, opposite pinion both workpieces are finished simultaneously. The system also includes a refinishing machine that incorporates the spindle and a machining mechanism having cutting elements for simultaneously refinishing opposite sides of a repair of disk rotors.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 28, 2002
    Inventors: Paul R. Baldwin, David N. Wong, John Guariglio