Patents by Inventor Kui-Chui Kwok

Kui-Chui Kwok 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: 8888018
    Abstract: A system for dispensing pulverulent coating material comprises a source of pulverulent coating material, a source of compressed gas, a device for movably supporting a nozzle, the nozzle coupled to the source of pulverulent material and providing an opening through which the pulverulent material is dispensed, a deflector supported by the device and spaced from the opening to aid in shaping a cloud of dispensed coating material, and a source of high-magnitude electrostatic potential coupled to impart electrostatic potential to the dispensed pulverulent material. The deflector includes at least one first passageway extending with a radial component of the deflector and communicating with the source of compressed gas to direct gas with a radial component into the cloud of dispensed coating material.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 18, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Kui-Chui Kwok, John F. Schaupp