Patents by Inventor Khin Yong Lam

Khin Yong Lam 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: 6910869
    Abstract: A valveless micropump includes a hollow pump chamber having a driving element coupled thereto, an inlet channel coupled to the hollow pump chamber, and an outlet channel coupled to the hollow pump chamber. The inlet channel, the hollow pump chamber, and the outlet channel define a fluid flow path through the inlet channel, the hollow pump chamber, and the outlet channel. At least one direction-sensitive element disposed in the flow path within one of the inlet and outlet channels and comprising a direction-sensitive element, is installed at an angle which produces a drag ratio greater than unity on fluid in the flow path. The driving element may comprise an electrostatic/piezoelectric member. Various embodiments of the valveless pump include one or more of the airfoil elements mounted in one, the other or both of the inlet and outlet channels, including embodiments in which one or more cascades of the airfoil elements are mounted in the inlet channel and the outlet channel.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: June 28, 2005
    Assignee: Institute of High Performance Computing
    Inventors: Teng Yong Ng, Diao Xu, Khin Yong Lam
  • Publication number: 20040256241
    Abstract: A reactor and a method of reacting a fluid are provided. The reactor comprises a chamber having an inlet and an outlet to receive and to output a fluid, respectively. A partition with a plurality of perforations is provided in the chamber to separate the fluid into fluid segments. A conductor coupled to the chamber generates a capacitance between the conductor and the partition to vibrate the partition.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Applicant: AGENCY FOR SCIENCE TECHNOLOGY AND RESEARCH
    Inventors: Diao Xu, Teng Yong Ng, Eng Hann Lim, Hua Pan, Lunsheng Pan, Xuhong Wu, Khin Yong Lam
  • Publication number: 20040257907
    Abstract: A fluid mixer and a method of mixing a fluid are provided. The fluid mixer comprises a chamber having an inlet and an outlet to receive and to output a fluid, respectively. A partition with a plurality of perforations is provided in the chamber to separate the fluid into fluid segments. The separation lowers a diffusion distance of the fluid to enhance mixing. Thereafter, the fluid is outputted from the chamber.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Applicant: Agency for Science, Technology and Research
    Inventors: Diao Xu, Teng Yong Ng, Eng Hann Lim, Hua Pan, Lunsheng Pan, Khin Yong Lam
  • Patent number: 6830071
    Abstract: An electrostatically operated, normally closed micromachined flow-through microvalve device comprises a stationary valve plate layer and a movable valve plate layer, the latter including an electrode plate such that it is deflectable by electrostatic forces under an applied voltage, and having a plurality of movable valve elements, each valve element moving with a degree of independence from the remaining valve elements. Application of a voltage results in deflection of the movable valve elements, the order of deflection depending on the relative magnitude of the electrostatic force experienced by the respective associated portion of the movable valve plate layer. This can be prescribed by the geometry of the device, and a preferred example provides a different separation between different portions of the movable valve plate layer and a further electrode plate in a device base plate layer.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: December 14, 2004
    Assignee: Institute of High Performance Computing
    Inventors: Diao Xu, Lun Sheng Pan, Teng Yong Ng, Khin Yong Lam
  • Publication number: 20030185692
    Abstract: A valveless micropump includes a hollow pump chamber having a driving element coupled thereto, an inlet channel coupled to the hollow pump chamber, and an outlet channel coupled to the hollow pump chamber. The inlet channel, the hollow pump chamber, and the outlet channel define a fluid flow path through the inlet channel, the hollow pump chamber, and the outlet channel. At least one direction-sensitive element disposed in the flow path within one of the inlet and outlet channels and comprising a direction-sensitive element, is installed at an angle which produces a drag ratio greater than unity on fluid in the flow path. The driving element may comprise an electrostatic/piezoelectric member. Various embodiments of the valveless pump include one or more of the airfoil elements mounted in one, the other or both of the inlet and outlet channels, including embodiments in which one or more cascades of the airfoil elements are mounted in the inlet channel and the outlet channel.
    Type: Application
    Filed: August 29, 2002
    Publication date: October 2, 2003
    Applicant: INSTITUTE OF HIGH PERFORMANCE COMPUTING
    Inventors: Teng Yong NG, Diao Xu, Khin Yong Lam
  • Publication number: 20020129857
    Abstract: This invention relates to an electrostatically operated, normally closed micromachined flow-through microvalve device.
    Type: Application
    Filed: January 10, 2002
    Publication date: September 19, 2002
    Applicant: Institute of High Performance Computing
    Inventors: Diao Xu, Lun Sheng Pan, Teng Yong NG, Khin Yong Lam
  • Patent number: 6341532
    Abstract: A micro-dimensional sensor measures the shear force, both in magnitude and direction, at the surface of a solid boundary as a fluid flows over that boundary. The sensor is a micro-mechanical capacitor-transducer system that includes a micro-dimensioned floating upper plate above a fixed lower plate supported on a substrate. The floating upper plate is mounted and held over the substrate by a number of zig-zap form supporting arms. The flow passing over the upper plate displaces the upper plate in a downstream direction, which results in a measurable change of the capacitance in the capacitor-transducer system. The direction and magnitude of the shear forces can then be obtained from the measured capacitance through specially designed circuitry.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 29, 2002
    Assignee: Institute of High Performance Computing
    Inventors: Diao Xu, Teng Yong Ng, Tieying Jiang, Khin Yong Lam, Boo Cheong Khoo